diff --git a/README.md b/README.md
index 4a37cc229..d87657dd6 100644
--- a/README.md
+++ b/README.md
@@ -62,12 +62,13 @@ content selecting on `#minecraft:is_overworld` and friends.
 ## Install
 
 **Plugin (Paper/Purpur/Leaf/Canvas/Folia/Spigot):** drop the plugin jar into `plugins/` and start
-the server. On first boot Iris downloads the managed `overworld` and `underworld` beta packs automatically.
+the server. First boot performs no pack download. Run `/iris download overworld`,
+`/iris download underworld`, or `/iris download https://host/path/pack.zip`, then restart manually.
 
 **Mod (Fabric/Forge/NeoForge):** drop the mod jar into `mods/` and start the server. The jar is
-self-contained (core, SPI, and required Fabric API modules are bundled). On first boot Iris
-prefetches the managed `overworld` and `underworld` beta packs and rebuilds the worldgen datapack;
-restart once if startup reports that registry-visible pack data was installed too late for that boot. Packs installed later register their custom dimension types
+self-contained (core, SPI, and required Fabric API modules are bundled). First boot compiles only
+packs already on disk and never accesses the network. `/iris download` installs a pack atomically
+without stopping the server; restart manually afterward. Packs register their custom dimension types
 (height ranges) and custom biomes through the forced datapack at server start - restart once after
 adding a pack so worlds get its full heights and biomes; worlds created before that restart run
 with fallback heights.
diff --git a/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/IrisWorldGeneratorResolver.java b/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/IrisWorldGeneratorResolver.java
index 3bfd34412..91083be75 100644
--- a/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/IrisWorldGeneratorResolver.java
+++ b/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/IrisWorldGeneratorResolver.java
@@ -34,9 +34,7 @@ import art.arcane.iris.engine.object.IrisDimension;
 import art.arcane.iris.engine.object.IrisWorld;
 import art.arcane.iris.engine.platform.BukkitChunkGenerator;
 import art.arcane.iris.util.common.plugin.VolmitPlugin;
-import art.arcane.iris.util.common.plugin.VolmitSender;
 import lombok.NonNull;
-import org.bukkit.Bukkit;
 import org.bukkit.NamespacedKey;
 import org.bukkit.generator.BiomeProvider;
 import org.bukkit.generator.ChunkGenerator;
@@ -177,13 +175,8 @@ public final class IrisWorldGeneratorResolver {
                         + " but its dimension failed to load; not redownloading. Fix or delete the pack folder.");
                 return null;
             }
-            Iris.warn("Unable to find dimension type " + id + " Looking for online packs...");
-            Iris.service(StudioSVC.class).downloadSearch(new VolmitSender(Bukkit.getConsoleSender()), id, false);
-            dimension = IrisData.loadAnyDimension(id, null);
-
-            if (dimension != null) {
-                Iris.info("Resolved missing dimension, proceeding.");
-            }
+            Iris.warn("Unable to find dimension type " + id + ". Install its pack with /iris download "
+                    + id + " and restart the server.");
         }
 
         return dimension;
diff --git a/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandIris.java b/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandIris.java
index c9ea114dc..dd21f68f7 100644
--- a/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandIris.java
+++ b/adapters/bukkit/plugin/src/main/java/art/arcane/iris/core/commands/CommandIris.java
@@ -710,9 +710,14 @@ public class CommandIris implements DirectorExecutor {
             @Param(name = "overwrite", description = "Whether or not to overwrite the pack with the downloaded one", descriptionKey = "iris.director.commandiris.param.whether_not_overwrite_pack_with_downloaded_one", aliases = "force", defaultValue = "false")
             boolean overwrite
     ) {
-        if (PackDownloader.isManagedBetaPack(pack)) {
-            sender().sendMessage(IrisLanguage.text(BukkitCommandMessagesExtended.COMMAND_IRIS_DOWNLOADING_PACK_BETA_RELEASE, MessageArgument.untrusted("pack", pack), MessageArgument.trusted("value", overwrite ? IrisLanguage.text(RuntimeUiMessages.DOWNLOAD_OVERWRITE_SUFFIX) : "")));
-            Iris.service(StudioSVC.class).downloadManagedBeta(sender(), pack, overwrite);
+        if (PackDownloader.isDirectZipUrl(pack)) {
+            sender().sendMessage("Downloading Iris pack from " + pack
+                    + (overwrite ? IrisLanguage.text(RuntimeUiMessages.DOWNLOAD_OVERWRITE_SUFFIX) : "") + ".");
+            Iris.service(StudioSVC.class).downloadUrl(sender(), pack, overwrite);
+        } else if (PackDownloader.isManagedPack(pack)) {
+            sender().sendMessage("Downloading managed Iris pack '" + pack + "' from its configured Git source"
+                    + (overwrite ? IrisLanguage.text(RuntimeUiMessages.DOWNLOAD_OVERWRITE_SUFFIX) : "") + ".");
+            Iris.service(StudioSVC.class).downloadManaged(sender(), pack, overwrite);
         } else {
             sender().sendMessage(IrisLanguage.text(BukkitCommandMessagesExtended.COMMAND_IRIS_DOWNLOADING_PACK, MessageArgument.untrusted("pack", pack), MessageArgument.untrusted("branch", branch), MessageArgument.trusted("value", overwrite ? IrisLanguage.text(RuntimeUiMessages.DOWNLOAD_OVERWRITE_SUFFIX) : "")));
             Iris.service(StudioSVC.class).downloadSearch(sender(), "IrisDimensions/" + pack + "/" + branch, overwrite);
diff --git a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedEngineBootstrap.java b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedEngineBootstrap.java
index b796d73d7..7d3c92ef0 100644
--- a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedEngineBootstrap.java
+++ b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedEngineBootstrap.java
@@ -260,7 +260,7 @@ public final class ModdedEngineBootstrap {
         selfTest(moddedLoader.getClass().getClassLoader());
         bind();
         IrisLanguage.initialize();
-        ModdedStartup.prefetchDefaultPack();
+        ModdedStartup.prefetchStartupDatapack();
         if (!moddedLoader.clientEnvironment()) {
             MainWorldService.reconcileEarly();
         }
diff --git a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedForcedDatapack.java b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedForcedDatapack.java
index 6fa1d8dbb..d6be9b58c 100644
--- a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedForcedDatapack.java
+++ b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedForcedDatapack.java
@@ -253,8 +253,6 @@ public final class ModdedForcedDatapack {
     }
 
     private static Path write() throws IOException {
-        // No ensureDefaultPack() here: write() is reachable from loadPacks on the first boot, and loadPacks
-        // must never touch the network. ModdedStartup.prefetchDefaultPack covers the download at boot.
         String packsHash = packsHash();
         Path datapackRoot = datapackRoot();
         Files.createDirectories(datapackRoot);
diff --git a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedModConfig.java b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedModConfig.java
index 025e38cb6..9387cad8a 100644
--- a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedModConfig.java
+++ b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedModConfig.java
@@ -33,17 +33,15 @@ public final class ModdedModConfig {
     private static volatile ModdedModConfig instance;
 
     private final String defaultPack;
-    private final boolean autoDownloadDefaultPack;
     private final String primaryWorld;
     private final boolean routePlayersToPrimaryWorld;
     private final String mainWorldPack;
     private final long mainWorldSeed;
     private final boolean mainWorldAutoRestart;
 
-    private ModdedModConfig(String defaultPack, boolean autoDownloadDefaultPack, String primaryWorld, boolean routePlayersToPrimaryWorld,
+    private ModdedModConfig(String defaultPack, String primaryWorld, boolean routePlayersToPrimaryWorld,
                            String mainWorldPack, long mainWorldSeed, boolean mainWorldAutoRestart) {
         this.defaultPack = defaultPack;
-        this.autoDownloadDefaultPack = autoDownloadDefaultPack;
         this.primaryWorld = primaryWorld == null ? "" : primaryWorld.trim();
         this.routePlayersToPrimaryWorld = routePlayersToPrimaryWorld;
         this.mainWorldPack = mainWorldPack == null ? "" : mainWorldPack.trim();
@@ -68,7 +66,7 @@ public final class ModdedModConfig {
     public static void setPrimaryWorld(String dimensionId) {
         synchronized (LOCK) {
             ModdedModConfig current = get();
-            ModdedModConfig updated = new ModdedModConfig(current.defaultPack, current.autoDownloadDefaultPack, dimensionId, current.routePlayersToPrimaryWorld,
+            ModdedModConfig updated = new ModdedModConfig(current.defaultPack, dimensionId, current.routePlayersToPrimaryWorld,
                     current.mainWorldPack, current.mainWorldSeed, current.mainWorldAutoRestart);
             instance = updated;
             write(configFile(), updated);
@@ -78,7 +76,7 @@ public final class ModdedModConfig {
     public static void setMainWorld(String packRef, long seed) {
         synchronized (LOCK) {
             ModdedModConfig current = get();
-            ModdedModConfig updated = new ModdedModConfig(current.defaultPack, current.autoDownloadDefaultPack, current.primaryWorld, current.routePlayersToPrimaryWorld,
+            ModdedModConfig updated = new ModdedModConfig(current.defaultPack, current.primaryWorld, current.routePlayersToPrimaryWorld,
                     packRef == null ? "" : packRef.trim(), seed, current.mainWorldAutoRestart);
             instance = updated;
             write(configFile(), updated);
@@ -89,10 +87,6 @@ public final class ModdedModConfig {
         return defaultPack;
     }
 
-    public boolean autoDownloadDefaultPack() {
-        return autoDownloadDefaultPack;
-    }
-
     public String primaryWorld() {
         return primaryWorld;
     }
@@ -119,7 +113,7 @@ public final class ModdedModConfig {
 
     private static ModdedModConfig load() {
         Path file = configFile();
-        ModdedModConfig defaults = new ModdedModConfig("overworld", true, "", true, "", 0L, false);
+        ModdedModConfig defaults = new ModdedModConfig("overworld", "", true, "", 0L, false);
         if (!Files.isRegularFile(file)) {
             write(file, defaults);
             return defaults;
@@ -128,7 +122,6 @@ public final class ModdedModConfig {
             JSONObject json = new JSONObject(Files.readString(file, StandardCharsets.UTF_8));
             return new ModdedModConfig(
                     json.optString("defaultPack", defaults.defaultPack),
-                    json.optBoolean("autoDownloadDefaultPack", defaults.autoDownloadDefaultPack),
                     json.optString("primaryWorld", defaults.primaryWorld),
                     json.optBoolean("routePlayersToPrimaryWorld", defaults.routePlayersToPrimaryWorld),
                     json.optString("mainWorldPack", defaults.mainWorldPack),
@@ -143,7 +136,6 @@ public final class ModdedModConfig {
     private static void write(Path file, ModdedModConfig config) {
         JSONObject json = new JSONObject();
         json.put("defaultPack", config.defaultPack);
-        json.put("autoDownloadDefaultPack", config.autoDownloadDefaultPack);
         json.put("primaryWorld", config.primaryWorld);
         json.put("routePlayersToPrimaryWorld", config.routePlayersToPrimaryWorld);
         json.put("mainWorldPack", config.mainWorldPack);
diff --git a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedPackInstaller.java b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedPackInstaller.java
index 541245152..6168575f3 100644
--- a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedPackInstaller.java
+++ b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedPackInstaller.java
@@ -48,7 +48,7 @@ public final class ModdedPackInstaller {
             feedback.accept(IrisLanguage.plain(PackDownloadMessages.INVALID_PACK_NAME, MessageArgument.untrusted("pack", String.valueOf(pack))));
             return false;
         }
-        boolean managedBeta = PackDownloader.isManagedBetaPack(pack);
+        boolean managed = PackDownloader.isManagedPack(pack);
         if (!acceptsBranch(pack, branch)) {
             feedback.accept(IrisLanguage.plain(PackDownloadMessages.INVALID_BRANCH_NAME, MessageArgument.untrusted("branch", String.valueOf(branch))));
             return false;
@@ -58,8 +58,8 @@ public final class ModdedPackInstaller {
         synchronized (installLock) {
             File packs = configDir.resolve("irisworldgen").resolve("packs").toFile();
             try {
-                PackDownloader.PackInstallResult result = managedBeta
-                        ? PackDownloader.downloadManagedBeta(packs, pack, forceOverwrite, feedback)
+                PackDownloader.PackInstallResult result = managed
+                        ? PackDownloader.downloadManaged(packs, pack, forceOverwrite, feedback)
                         : PackDownloader.download(
                                 packs,
                                 "IrisDimensions/" + pack,
@@ -84,7 +84,7 @@ public final class ModdedPackInstaller {
                 }
                 return installed;
             } catch (IOException error) {
-                String source = managedBeta ? "beta release" : "branch " + branch;
+                String source = managed ? "configured Git source" : "branch " + branch;
                 LOGGER.error("Iris pack download failed for IrisDimensions/{} ({})", pack, source, error);
                 feedback.accept(IrisLanguage.plain(
                         PackDownloadMessages.DOWNLOAD_FAILED,
@@ -97,7 +97,7 @@ public final class ModdedPackInstaller {
     }
 
     static boolean acceptsBranch(String pack, String branch) {
-        return PackDownloader.isManagedBetaPack(pack)
+        return PackDownloader.isManagedPack(pack)
                 || (branch != null && BRANCH_NAME.matcher(branch).matches());
     }
 
diff --git a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedStartup.java b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedStartup.java
index 1209b7680..762d02082 100644
--- a/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedStartup.java
+++ b/adapters/modded-common/src/main/java/art/arcane/iris/modded/ModdedStartup.java
@@ -37,7 +37,6 @@ import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.attribute.BasicFileAttributes;
-import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -47,7 +46,6 @@ public final class ModdedStartup {
     private static final Logger LOGGER = LoggerFactory.getLogger("Iris");
     private static final AtomicBoolean PREPARED = new AtomicBoolean(false);
     private static final AtomicBoolean STARTED = new AtomicBoolean(false);
-    private static final Object PACK_LOCK = new Object();
 
     private ModdedStartup() {
     }
@@ -69,14 +67,13 @@ public final class ModdedStartup {
      * ModdedEngineBootstrap.start clears the async queue at SERVER_STARTING, which would silently drop this
      * one-shot task, and the datapack must be regenerated before the level PackRepository reload if it can.
      */
-    public static void prefetchDefaultPack() {
-        Thread thread = new Thread(ModdedStartup::refreshPacksAndDatapack, "iris-modded-pack-prefetch");
+    public static void prefetchStartupDatapack() {
+        Thread thread = new Thread(ModdedStartup::refreshDatapack, "iris-modded-datapack-prefetch");
         thread.setDaemon(true);
         thread.start();
     }
 
-    private static void refreshPacksAndDatapack() {
-        ensureDefaultPack();
+    private static void refreshDatapack() {
         try {
             ModdedForcedDatapack.regenerateIfStale("boot");
         } catch (Throwable failure) {
@@ -98,10 +95,10 @@ public final class ModdedStartup {
 
         ModdedScheduler scheduler = ModdedEngineBootstrap.schedulerOrNull();
         if (scheduler == null) {
-            refreshPacksAndDatapack();
+            refreshDatapack();
             return;
         }
-        scheduler.async(ModdedStartup::refreshPacksAndDatapack);
+        scheduler.async(ModdedStartup::refreshDatapack);
     }
 
     public static void validateAllPacks() {
@@ -248,45 +245,4 @@ public final class ModdedStartup {
         }
     }
 
-    public static void ensureDefaultPack() {
-        synchronized (PACK_LOCK) {
-            ModdedModConfig config = ModdedModConfig.get();
-            if (!config.autoDownloadDefaultPack()) {
-                return;
-            }
-            Path configDir = ModdedEngineBootstrap.loader().configDir();
-            File packsRoot = ModdedPackCommands.packsRoot();
-            for (String pack : startupPacks(config.defaultPack())) {
-                ensureStartupPack(configDir, packsRoot, pack);
-            }
-        }
-    }
-
-    static List<String> startupPacks(String configuredDefault) {
-        LinkedHashSet<String> packs = new LinkedHashSet<>(PackDownloader.managedBetaPacks());
-        if (configuredDefault != null && !configuredDefault.isBlank()) {
-            packs.add(configuredDefault);
-        }
-        return List.copyOf(packs);
-    }
-
-    private static void ensureStartupPack(Path configDir, File packsRoot, String pack) {
-        boolean present = PackDownloader.isManagedBetaPack(pack)
-                ? PackDownloader.isManagedBetaPackPresent(packsRoot, pack)
-                : PackDownloader.isPackPresent(packsRoot, pack);
-        if (present) {
-            return;
-        }
-        boolean managedBeta = PackDownloader.isManagedBetaPack(pack);
-        String branch = managedBeta ? "beta" : "master";
-        String source = managedBeta ? "beta release" : "master branch";
-        String role = managedBeta ? "managed beta pack" : "default pack";
-        LOGGER.info("Iris {} '{}' missing; downloading IrisDimensions/{} ({})", role, pack, pack, source);
-        boolean installed = ModdedPackInstaller.install(
-                configDir, pack, branch, false, false,
-                (String line) -> LOGGER.info("Iris: {}", line));
-        if (!installed) {
-            LOGGER.warn("Iris {} '{}' could not be downloaded; install it with /iris download {}", role, pack, pack);
-        }
-    }
 }
diff --git a/adapters/modded-common/src/main/java/art/arcane/iris/modded/command/IrisModdedCommands.java b/adapters/modded-common/src/main/java/art/arcane/iris/modded/command/IrisModdedCommands.java
index f497ce7ec..d31b9d41b 100644
--- a/adapters/modded-common/src/main/java/art/arcane/iris/modded/command/IrisModdedCommands.java
+++ b/adapters/modded-common/src/main/java/art/arcane/iris/modded/command/IrisModdedCommands.java
@@ -49,6 +49,8 @@ import net.minecraft.world.level.chunk.ChunkGenerator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.io.File;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -258,8 +260,10 @@ public final class IrisModdedCommands {
 
     static int download(CommandSourceStack source, String pack,
                         String branch, boolean forceOverwrite) {
-        boolean managedBeta = PackDownloader.isManagedBetaPack(pack);
-        String baseDownloadSource = managedBeta ? "beta release" : "branch " + branch;
+        boolean managed = PackDownloader.isManagedPack(pack);
+        boolean directUrl = PackDownloader.isDirectZipUrl(pack);
+        String baseDownloadSource = directUrl ? "direct ZIP URL"
+                : managed ? "configured Git source" : "branch " + branch;
         String downloadSource = forceOverwrite
                 ? baseDownloadSource + IrisLanguage.plain(RuntimeUiMessages.DOWNLOAD_OVERWRITE_SUFFIX)
                 : baseDownloadSource;
@@ -273,11 +277,28 @@ public final class IrisModdedCommands {
             return 0;
         }
         scheduler.async(() -> {
-            boolean installed = ModdedPackInstaller.install(
-                    ModdedEngineBootstrap.loader().configDir(), pack, branch, forceOverwrite, true,
-                    (String message) -> scheduler.global(() -> ok(source, message)));
+            boolean installed;
+            if (directUrl) {
+                File packs = ModdedPackCommands.packsRoot();
+                try {
+                    PackDownloader.PackInstallResult result = PackDownloader.downloadUrl(
+                            packs,
+                            pack,
+                            forceOverwrite,
+                            (String message) -> scheduler.global(() -> ok(source, message))
+                    );
+                    installed = result != null;
+                } catch (IOException error) {
+                    LOGGER.error("Iris pack download failed for direct URL {}", pack, error);
+                    installed = false;
+                }
+            } else {
+                installed = ModdedPackInstaller.install(
+                        ModdedEngineBootstrap.loader().configDir(), pack, branch, forceOverwrite, false,
+                        (String message) -> scheduler.global(() -> ok(source, message)));
+            }
             if (installed) {
-                scheduler.global(() -> ok(source, IrisLanguage.plain(ModdedCommandMessages.IRIS_MODDED_COMMANDS_PACK_INSTALLED_ITS_EXACT_DIMENSION_TYPES_CUSTOM_BIOMES_JOIN_FORCED, MessageArgument.untrusted("pack", pack))));
+                scheduler.global(() -> ok(source, "Pack installed on disk. Restart the server before using it."));
             } else {
                 scheduler.global(() -> fail(source, IrisLanguage.plain(ModdedCommandMessages.IRIS_MODDED_COMMANDS_PACK_DOWNLOAD_FAILED_SEE_CONSOLE, MessageArgument.untrusted("pack", pack), MessageArgument.untrusted("downloadSource", downloadSource))));
             }
diff --git a/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedPackInstallerTest.java b/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedPackInstallerTest.java
index 42bd09fd6..159cae9a0 100644
--- a/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedPackInstallerTest.java
+++ b/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedPackInstallerTest.java
@@ -26,7 +26,7 @@ import static org.junit.Assert.assertTrue;
 
 public class ModdedPackInstallerTest {
     @Test
-    public void managedBetaPacksIgnoreTheRequestedBranch() {
+    public void managedPacksIgnoreTheRequestedBranch() {
         assertTrue(ModdedPackInstaller.acceptsBranch("overworld", null));
         assertTrue(ModdedPackInstaller.acceptsBranch("underworld", "feature/arbitrary"));
     }
diff --git a/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedStartupPackSelectionTest.java b/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedStartupPackSelectionTest.java
deleted file mode 100644
index 867cae830..000000000
--- a/adapters/modded-common/src/test/java/art/arcane/iris/modded/ModdedStartupPackSelectionTest.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Iris is a World Generator for Minecraft Servers
- * Copyright (c) 2026 Arcane Arts (Volmit Software)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package art.arcane.iris.modded;
-
-import org.junit.Test;
-
-import java.util.List;
-
-import static org.junit.Assert.assertEquals;
-
-public class ModdedStartupPackSelectionTest {
-    @Test
-    public void managedBetaPacksAreAlwaysInstalledInStableOrder() {
-        assertEquals(List.of("overworld", "underworld"), ModdedStartup.startupPacks("overworld"));
-        assertEquals(List.of("overworld", "underworld"), ModdedStartup.startupPacks("underworld"));
-    }
-
-    @Test
-    public void configuredNonManagedDefaultIsInstalledAfterManagedBetaPacks() {
-        assertEquals(
-                List.of("overworld", "underworld", "custom"),
-                ModdedStartup.startupPacks("custom")
-        );
-    }
-}
diff --git a/core/src/main/java/art/arcane/iris/core/IrisSettings.java b/core/src/main/java/art/arcane/iris/core/IrisSettings.java
index edcedc6ed..f1834fb46 100644
--- a/core/src/main/java/art/arcane/iris/core/IrisSettings.java
+++ b/core/src/main/java/art/arcane/iris/core/IrisSettings.java
@@ -151,7 +151,6 @@ public class IrisSettings {
     public static class IrisSettingsAutoconfiguration {
         public boolean configureSpigotTimeoutTime = true;
         public boolean configurePaperWatchdogDelay = true;
-        public boolean autoRestartOnCustomBiomeInstall = true;
     }
 
     @Data
diff --git a/core/src/main/java/art/arcane/iris/core/IrisWorlds.java b/core/src/main/java/art/arcane/iris/core/IrisWorlds.java
index d62e62d54..33438eee2 100644
--- a/core/src/main/java/art/arcane/iris/core/IrisWorlds.java
+++ b/core/src/main/java/art/arcane/iris/core/IrisWorlds.java
@@ -7,16 +7,13 @@ import art.arcane.iris.engine.data.cache.AtomicCache;
 import art.arcane.iris.engine.object.IrisDimension;
 import art.arcane.iris.spi.IrisLogging;
 import art.arcane.iris.spi.IrisPlatforms;
-import art.arcane.iris.spi.IrisServices;
 import art.arcane.iris.util.common.misc.ServerProperties;
-import art.arcane.iris.util.common.plugin.VolmitSender;
 import art.arcane.volmlib.util.bukkit.WorldIdentity;
 import art.arcane.volmlib.util.collection.KMap;
 import art.arcane.volmlib.util.io.IO;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.reflect.TypeToken;
-import org.bukkit.Bukkit;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.YamlConfiguration;
 
@@ -231,12 +228,8 @@ public class IrisWorlds {
                         + " but its dimension failed to load; not redownloading. Fix or delete the pack folder.");
                 return null;
             }
-            IrisLogging.warn("Unable to find dimension type " + id + " Looking for online packs...");
-            IrisServices.get(StudioSVC.class).downloadSearch(new VolmitSender(Bukkit.getConsoleSender()), id, false);
-            dimension = IrisData.loadAnyDimension(id, null);
-            if (dimension != null) {
-                IrisLogging.info("Resolved missing dimension, proceeding.");
-            }
+            IrisLogging.warn("Unable to find dimension type " + id + ". Install it with /iris download "
+                    + id + " and restart the server.");
         }
         return dimension;
     }
diff --git a/core/src/main/java/art/arcane/iris/core/ServerConfigurator.java b/core/src/main/java/art/arcane/iris/core/ServerConfigurator.java
index 79901b59a..9cfb7a363 100644
--- a/core/src/main/java/art/arcane/iris/core/ServerConfigurator.java
+++ b/core/src/main/java/art/arcane/iris/core/ServerConfigurator.java
@@ -114,8 +114,8 @@ public class ServerConfigurator {
             loadedDatapackRuntimeReady = result.succeeded()
                     && !result.restartRequired()
                     && pinLoadedDatapackCompilerInputs();
-            if (result.restartRequired() && IrisSettings.get().getAutoConfiguration().isAutoRestartOnCustomBiomeInstall()) {
-                restart();
+            if (result.restartRequired()) {
+                IrisLogging.warn("Iris datapack changes require another server restart before worlds can use them.");
             }
         }
     }
diff --git a/core/src/main/java/art/arcane/iris/core/localization/BukkitCommandMessagesExtended.java b/core/src/main/java/art/arcane/iris/core/localization/BukkitCommandMessagesExtended.java
index 98b0fc4e1..98b890f02 100644
--- a/core/src/main/java/art/arcane/iris/core/localization/BukkitCommandMessagesExtended.java
+++ b/core/src/main/java/art/arcane/iris/core/localization/BukkitCommandMessagesExtended.java
@@ -295,10 +295,6 @@ public final class BukkitCommandMessagesExtended {
             "iris.bukkit.commandiris.set_debug",
             C.GREEN + "Set debug to: " + "{to}"
     );
-    public static final TextKey COMMAND_IRIS_DOWNLOADING_PACK_BETA_RELEASE = TextKey.of(
-            "iris.bukkit.commandiris.downloading_pack_beta_release",
-            C.GREEN + "Downloading pack: " + "{pack}" + " (beta release)" + "{value}"
-    );
     public static final TextKey COMMAND_IRIS_DOWNLOADING_PACK = TextKey.of(
             "iris.bukkit.commandiris.downloading_pack",
             C.GREEN + "Downloading pack: " + "{pack}" + "/" + "{branch}" + "{value}"
@@ -916,7 +912,6 @@ public final class BukkitCommandMessagesExtended {
             COMMAND_IRIS_LOOKS_LIKE_WORLD_WAS_ALREADY_REMOVED_FROM_BUKKIT_YML,
             COMMAND_IRIS_FAILED_SAVE_BUKKIT_YML_BECAUSE,
             COMMAND_IRIS_SET_DEBUG,
-            COMMAND_IRIS_DOWNLOADING_PACK_BETA_RELEASE,
             COMMAND_IRIS_DOWNLOADING_PACK,
             COMMAND_IRIS_YOU_MUST_BE_IRIS_WORLD,
             COMMAND_IRIS_SENDING_METRICS,
diff --git a/core/src/main/java/art/arcane/iris/core/localization/BukkitRuntimeMessages.java b/core/src/main/java/art/arcane/iris/core/localization/BukkitRuntimeMessages.java
index 3542f7452..203331dbd 100644
--- a/core/src/main/java/art/arcane/iris/core/localization/BukkitRuntimeMessages.java
+++ b/core/src/main/java/art/arcane/iris/core/localization/BukkitRuntimeMessages.java
@@ -446,10 +446,6 @@ public final class BukkitRuntimeMessages {
             "iris.bukkit.runtime.studiosvc.failed_download",
             "Failed to download '" + "{key}" + "'."
     );
-    public static final TextKey STUDIO_S_V_C_FAILED_DOWNLOAD_IRISDIMENSIONS_OVERWORLD_BETA_RELEASE = TextKey.of(
-            "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release",
-            "Failed to download the IrisDimensions/overworld beta release."
-    );
     public static final TextKey STUDIO_S_V_C_FAILED_DOWNLOAD_BRANCH = TextKey.of(
             "iris.bukkit.runtime.studiosvc.failed_download_branch",
             "Failed to download '" + "{repo}" + "' (branch " + "{branch}" + ")."
@@ -730,7 +726,6 @@ public final class BukkitRuntimeMessages {
             STUDIO_S_V_C_PACK_WAS_NOT_FOUND_PACK_LISTING,
             STUDIO_S_V_C_USE_IRIS_DOWNLOAD_PACK_BRANCH_BRANCH_DOWNLOAD_MANUALLY,
             STUDIO_S_V_C_FAILED_DOWNLOAD,
-            STUDIO_S_V_C_FAILED_DOWNLOAD_IRISDIMENSIONS_OVERWORLD_BETA_RELEASE,
             STUDIO_S_V_C_FAILED_DOWNLOAD_BRANCH,
             STUDIO_S_V_C_FAILED_OPEN_STUDIO_WORLD,
             STUDIO_S_V_C_CANNOT_OPEN_STUDIO_PACK_HAS_BLOCKING_ERRORS,
diff --git a/core/src/main/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisioner.java b/core/src/main/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisioner.java
index 973be2cab..1ca366118 100644
--- a/core/src/main/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisioner.java
+++ b/core/src/main/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisioner.java
@@ -43,20 +43,9 @@ import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
 public final class DefaultPackBootstrapProvisioner {
-    private static final List<PackSpec> DEFAULT_PACKS = List.of(
-            new PackSpec(
-                    "overworld",
-                    URI.create("https://github.com/IrisDimensions/overworld/releases/download/beta/overworld.zip"),
-                    "overworld"
-            ),
-            new PackSpec(
-                    "underworld",
-                    URI.create("https://github.com/IrisDimensions/underworld/releases/download/beta/underworld.zip"),
-                    "underworld"
-            )
-    );
+    private static final List<PackSpec> DEFAULT_PACKS = List.of();
     private static final String WORLD_DATAPACK_DIRECTORY = "iris";
-    private static final int MARKER_SCHEMA = 4;
+    private static final int MARKER_SCHEMA = 5;
     private static final int MAX_ARCHIVE_ENTRIES = 100_000;
     private static final long MAX_ARCHIVE_BYTES = 512L * 1024L * 1024L;
     private static final long MAX_EXPANDED_BYTES = 2L * 1024L * 1024L * 1024L;
@@ -239,9 +228,6 @@ public final class DefaultPackBootstrapProvisioner {
             }
 
             List<File> packRoots = IrisDatapackCompiler.collectPackRoots(normalizedData, options.levelRoot());
-            if (packRoots.isEmpty()) {
-                throw new IOException("No Iris pack roots were available for bootstrap datapack compilation");
-            }
             IDataFixer fixer = DataVersion.getLatest().get();
             if (fixer == null) {
                 throw new IOException("Latest Iris datapack fixer is unavailable during bootstrap");
@@ -260,7 +246,7 @@ public final class DefaultPackBootstrapProvisioner {
                 Files.createDirectories(compileContainer);
                 KList<File> outputFolders = new KList<File>().qadd(compileContainer.toFile());
                 IrisDatapackCompiler.compile(packRoots, outputFolders, fixer, false);
-                if (!isDatapackRoot(compileContainer)) {
+                if (!isDatapackRoot(compileContainer, !packRoots.isEmpty())) {
                     throw new IOException("Canonical Iris datapack compiler produced incomplete output at " + compileContainer);
                 }
                 datapackBackup = replaceWithBackup(compileContainer, datapackRoot);
@@ -271,12 +257,12 @@ public final class DefaultPackBootstrapProvisioner {
             for (PackPlan plan : plans) {
                 validatePackRoot(plan.root(), plan.spec());
             }
-            if (!isDatapackRoot(datapackRoot)) {
-                throw new IOException("Bootstrap datapack output is incomplete at " + datapackRoot);
-            }
             List<File> finalPackRoots = IrisDatapackCompiler.collectPackRoots(
                     normalizedData,
                     options.levelRoot());
+            if (!isDatapackRoot(datapackRoot, !finalPackRoots.isEmpty())) {
+                throw new IOException("Bootstrap datapack output is incomplete at " + datapackRoot);
+            }
             String finalAggregateFingerprint = packRootsFingerprint(finalPackRoots);
             String finalCompilerInputFingerprint = IrisDatapackCompiler.computeInputFingerprint(
                     finalPackRoots,
@@ -316,7 +302,6 @@ public final class DefaultPackBootstrapProvisioner {
             } else {
                 status = ProvisionStatus.UNCHANGED;
             }
-            feedback.accept("Iris bootstrap packs are " + status.name().toLowerCase() + ".");
             Map<String, Path> provisionedPacks = new LinkedHashMap<>();
             for (PackPlan plan : plans) {
                 provisionedPacks.put(plan.spec().key(), plan.root());
@@ -605,9 +590,13 @@ public final class DefaultPackBootstrapProvisioner {
     }
 
     private static boolean isDatapackRoot(Path path) {
+        return isDatapackRoot(path, false);
+    }
+
+    private static boolean isDatapackRoot(Path path, boolean requiresGeneratedTypes) {
         return path != null
                 && Files.isRegularFile(path.resolve("pack.mcmeta"))
-                && Files.isDirectory(path.resolve("data/iris/dimension_type"));
+                && (!requiresGeneratedTypes || Files.isDirectory(path.resolve("data/iris/dimension_type")));
     }
 
     static Path worldDatapackRoot(Path levelRoot) {
@@ -908,7 +897,7 @@ public final class DefaultPackBootstrapProvisioner {
             Objects.requireNonNull(requestTimeout, "requestTimeout");
             Objects.requireNonNull(retryDelay, "retryDelay");
             Objects.requireNonNull(levelRoot, "levelRoot");
-            if (packs.isEmpty() || attempts < 1 || maxArchiveBytes < 1L) {
+            if (attempts < 1 || maxArchiveBytes < 1L) {
                 throw new IllegalArgumentException("Invalid bootstrap provisioning options");
             }
             Set<String> keys = new HashSet<>();
diff --git a/core/src/main/java/art/arcane/iris/core/pack/PackDownloader.java b/core/src/main/java/art/arcane/iris/core/pack/PackDownloader.java
index fca8fe114..8d532f4b0 100644
--- a/core/src/main/java/art/arcane/iris/core/pack/PackDownloader.java
+++ b/core/src/main/java/art/arcane/iris/core/pack/PackDownloader.java
@@ -32,6 +32,7 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.LinkOption;
 import java.nio.file.Path;
@@ -56,14 +57,14 @@ import java.util.zip.ZipInputStream;
 public final class PackDownloader {
     private static final String DEFAULT_OVERWORLD_PACK = "overworld";
     private static final String DEFAULT_OVERWORLD_REPOSITORY = "IrisDimensions/overworld";
-    private static final String DEFAULT_OVERWORLD_RELEASE_URL = "https://github.com/IrisDimensions/overworld/releases/download/beta/overworld.zip";
+    private static final String DEFAULT_OVERWORLD_REF = "master";
     private static final String UNDERWORLD_PACK = "underworld";
     private static final String UNDERWORLD_REPOSITORY = "IrisDimensions/underworld";
-    private static final String UNDERWORLD_RELEASE_URL = "https://github.com/IrisDimensions/underworld/releases/download/beta/underworld.zip";
-    private static final List<String> MANAGED_BETA_PACK_KEYS = List.of(DEFAULT_OVERWORLD_PACK, UNDERWORLD_PACK);
-    private static final Map<String, ManagedBetaPack> MANAGED_BETA_PACKS = Map.of(
-            DEFAULT_OVERWORLD_PACK, new ManagedBetaPack(DEFAULT_OVERWORLD_REPOSITORY, DEFAULT_OVERWORLD_RELEASE_URL),
-            UNDERWORLD_PACK, new ManagedBetaPack(UNDERWORLD_REPOSITORY, UNDERWORLD_RELEASE_URL)
+    private static final String UNDERWORLD_REF = "main";
+    private static final List<String> MANAGED_PACK_KEYS = List.of(DEFAULT_OVERWORLD_PACK, UNDERWORLD_PACK);
+    private static final Map<String, ManagedPack> MANAGED_PACKS = Map.of(
+            DEFAULT_OVERWORLD_PACK, new ManagedPack(DEFAULT_OVERWORLD_REPOSITORY, DEFAULT_OVERWORLD_REF),
+            UNDERWORLD_PACK, new ManagedPack(UNDERWORLD_REPOSITORY, UNDERWORLD_REF)
     );
     private static final Pattern GITHUB_REPOSITORY = Pattern.compile("[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+");
     private static final Pattern GITHUB_REF = Pattern.compile("[A-Za-z0-9][A-Za-z0-9._/-]*");
@@ -84,12 +85,30 @@ public final class PackDownloader {
         return DEFAULT_OVERWORLD_PACK.equals(pack);
     }
 
-    public static boolean isManagedBetaPack(String pack) {
-        return pack != null && MANAGED_BETA_PACKS.containsKey(pack);
+    public static boolean isManagedPack(String pack) {
+        return pack != null && MANAGED_PACKS.containsKey(pack);
     }
 
-    public static List<String> managedBetaPacks() {
-        return MANAGED_BETA_PACK_KEYS;
+    public static List<String> managedPacks() {
+        return MANAGED_PACK_KEYS;
+    }
+
+    public static boolean isDirectZipUrl(String value) {
+        if (value == null || value.isBlank()) {
+            return false;
+        }
+        try {
+            URI uri = URI.create(value.trim());
+            String scheme = uri.getScheme();
+            String path = uri.getPath();
+            return ("https".equalsIgnoreCase(scheme) || "http".equalsIgnoreCase(scheme))
+                    && uri.getHost() != null
+                    && !uri.getHost().isBlank()
+                    && path != null
+                    && path.toLowerCase(Locale.ROOT).endsWith(".zip");
+        } catch (IllegalArgumentException exception) {
+            return false;
+        }
     }
 
     public static String defaultOverworldPack() {
@@ -133,8 +152,8 @@ public final class PackDownloader {
         }
     }
 
-    public static boolean isManagedBetaPackPresent(File packsFolder, String key) {
-        if (!isManagedBetaPack(key) || !isPackPresent(packsFolder, key)) {
+    public static boolean isManagedPackPresent(File packsFolder, String key) {
+        if (!isManagedPack(key) || !isPackPresent(packsFolder, key)) {
             return false;
         }
         File resolvedPack = PackDirectoryResolver.resolveExisting(packsFolder, key);
@@ -149,32 +168,46 @@ public final class PackDownloader {
     }
 
     public static PackInstallResult downloadDefaultOverworld(File packsFolder, boolean forceOverwrite, Consumer<String> feedback) throws IOException {
-        return downloadManagedBeta(packsFolder, DEFAULT_OVERWORLD_PACK, forceOverwrite, feedback);
+        return downloadManaged(packsFolder, DEFAULT_OVERWORLD_PACK, forceOverwrite, feedback);
     }
 
-    public static PackInstallResult downloadManagedBeta(File packsFolder, String pack, boolean forceOverwrite,
-                                                        Consumer<String> feedback) throws IOException {
-        ManagedBetaPack managed = pack == null ? null : MANAGED_BETA_PACKS.get(pack);
+    public static PackInstallResult downloadManaged(File packsFolder, String pack, boolean forceOverwrite,
+                                                    Consumer<String> feedback) throws IOException {
+        ManagedPack managed = pack == null ? null : MANAGED_PACKS.get(pack);
         if (managed == null) {
-            throw new IllegalArgumentException("Pack '" + pack + "' has no managed beta release");
+            throw new IllegalArgumentException("Pack '" + pack + "' has no managed Git source");
         }
         return download(
                 packsFolder,
                 managed.repository(),
-                managed.releaseUrl(),
+                managed.ref(),
+                forceOverwrite,
+                false,
+                pack,
+                feedback
+        );
+    }
+
+    public static PackInstallResult downloadUrl(File packsFolder, String url, boolean forceOverwrite,
+                                                Consumer<String> feedback) throws IOException {
+        if (!isDirectZipUrl(url)) {
+            throw new IllegalArgumentException("Pack URL must be an HTTP or HTTPS .zip link");
+        }
+        return download(
+                packsFolder,
+                "direct-url",
+                url.trim(),
                 forceOverwrite,
                 true,
-                pack,
+                null,
                 feedback
         );
     }
 
     /**
      * Downloads and imports a pack. {@code expectedKey} is the pack key the caller is trying to
-     * obtain (null when unknown, e.g. arbitrary repo/branch downloads); when the key is already
-     * present on disk and {@code forceOverwrite} is false, the network is never touched. The
-     * per-repo lock keeps concurrent startup triggers (async default-pack install racing world
-     * resolution) from downloading the same archive twice.
+     * obtain (null when unknown, e.g. arbitrary repo, branch, or URL downloads); when the key is
+     * already present on disk and {@code forceOverwrite} is false, the network is never touched.
      */
     public static PackInstallResult download(File packsFolder, String repo, String ref, boolean forceOverwrite, boolean directUrl, String expectedKey, Consumer<String> feedback) throws IOException {
         Objects.requireNonNull(packsFolder, "packsFolder");
@@ -185,8 +218,8 @@ public final class PackDownloader {
         }
         String lockKey = expectedKey != null && !expectedKey.isBlank() ? "key:" + expectedKey : "ref:" + repo + "|" + ref;
         return withDownloadLock(lockKey, () -> {
-            boolean present = isManagedBetaPack(expectedKey)
-                    ? isManagedBetaPackPresent(packsFolder, expectedKey)
+            boolean present = isManagedPack(expectedKey)
+                    ? isManagedPackPresent(packsFolder, expectedKey)
                     : isPackPresent(packsFolder, expectedKey);
             if (!forceOverwrite && present) {
                 sendFeedback(output, IrisLanguage.plain(PackDownloadMessages.ALREADY_INSTALLED, MessageArgument.untrusted("key", expectedKey)));
@@ -224,14 +257,7 @@ public final class PackDownloader {
                 sendFeedback(feedback, IrisLanguage.plain(PackDownloadMessages.NO_EXTRACTED_FILES));
                 return null;
             }
-            File directory;
-            try {
-                directory = zipFiles.length > 1 ? work : zipFiles[0].isDirectory() ? zipFiles[0] : null;
-            } catch (NullPointerException exception) {
-                IrisLogging.reportError(exception);
-                sendFeedback(feedback, IrisLanguage.plain(PackDownloadMessages.HOME_DIRECTORY_ERROR));
-                return null;
-            }
+            File directory = findExtractedPackDirectory(work, zipFiles);
             if (directory == null) {
                 sendFeedback(feedback, IrisLanguage.plain(PackDownloadMessages.INVALID_ARCHIVE_FORMAT));
                 return null;
@@ -242,6 +268,26 @@ public final class PackDownloader {
         }
     }
 
+    private static File findExtractedPackDirectory(File work, File[] extractedFiles) {
+        if (new File(work, "dimensions").isDirectory()) {
+            return work;
+        }
+        File candidate = null;
+        for (File extracted : extractedFiles) {
+            if (!extracted.isDirectory() || !new File(extracted, "dimensions").isDirectory()) {
+                continue;
+            }
+            if (candidate != null) {
+                return work;
+            }
+            candidate = extracted;
+        }
+        if (candidate != null) {
+            return candidate;
+        }
+        return extractedFiles.length == 1 && extractedFiles[0].isDirectory() ? extractedFiles[0] : work;
+    }
+
     static PackInstallResult installExtractedPack(File packsFolder, File extractedPack, boolean forceOverwrite,
                                                   String expectedKey, Consumer<String> feedback) throws IOException {
         Objects.requireNonNull(packsFolder, "packsFolder");
@@ -311,7 +357,7 @@ public final class PackDownloader {
 
         PackValidationResult stagedValidation;
         try {
-            stagedValidation = PackValidator.validate(staging);
+            stagedValidation = PackValidator.validateForDatapackBootstrap(staging);
         } catch (RuntimeException exception) {
             throw new IOException("Pack validation failed before publication for '" + key + "'", exception);
         }
@@ -375,8 +421,8 @@ public final class PackDownloader {
             ));
             return null;
         }
-        boolean present = isManagedBetaPack(prepared.key())
-                ? isManagedBetaPackPresent(packsRoot.toFile(), prepared.key())
+        boolean present = isManagedPack(prepared.key())
+                ? isManagedPackPresent(packsRoot.toFile(), prepared.key())
                 : isPackPresent(packsRoot.toFile(), prepared.key());
         if (!forceOverwrite && present) {
             sendFeedback(feedback, IrisLanguage.plain(
@@ -418,7 +464,7 @@ public final class PackDownloader {
                 PackDownloadMessages.ACQUIRED,
                 MessageArgument.untrusted("name", prepared.name())
         ));
-        return new PackInstallResult(prepared.key(), true, false);
+        return new PackInstallResult(prepared.key(), true, true);
     }
 
     private static Path findConflictingPack(Path packsRoot, Path staging, Path target, String key) throws IOException {
@@ -648,12 +694,20 @@ public final class PackDownloader {
         return "https://codeload.github.com/" + repo + "/zip/" + qualifiedRef;
     }
 
-    static String defaultOverworldReleaseUrl() {
-        return DEFAULT_OVERWORLD_RELEASE_URL;
+    static String defaultOverworldRepository() {
+        return DEFAULT_OVERWORLD_REPOSITORY;
     }
 
-    static String underworldReleaseUrl() {
-        return UNDERWORLD_RELEASE_URL;
+    static String defaultOverworldRef() {
+        return DEFAULT_OVERWORLD_REF;
+    }
+
+    static String underworldRepository() {
+        return UNDERWORLD_REPOSITORY;
+    }
+
+    static String underworldRef() {
+        return UNDERWORLD_REF;
     }
 
     private static void validateGithubRef(String qualifiedRef) {
@@ -681,7 +735,7 @@ public final class PackDownloader {
     private record PreparedPack(String key, String name, PackValidationResult validation) {
     }
 
-    private record ManagedBetaPack(String repository, String releaseUrl) {
+    private record ManagedPack(String repository, String ref) {
     }
 
     public record PackInstallResult(String key, boolean changed, boolean restartRequired) {
diff --git a/core/src/main/java/art/arcane/iris/core/service/StudioSVC.java b/core/src/main/java/art/arcane/iris/core/service/StudioSVC.java
index ccd23b0c7..f130511e0 100644
--- a/core/src/main/java/art/arcane/iris/core/service/StudioSVC.java
+++ b/core/src/main/java/art/arcane/iris/core/service/StudioSVC.java
@@ -98,14 +98,8 @@ public class StudioSVC implements IrisService {
 
     @Override
     public void onEnable() {
-        VolmitSender console = BukkitPlatform.console();
-        runPackMutation(console, LifecycleOperationCoordinator.OperationKind.PACK_DOWNLOAD,
-                "managed-beta-packs", () -> installMissingManagedBetaPacks(console),
-                "Failed to install Iris managed beta packs at startup.");
-
         String configuredPack = IrisSettings.get().getGenerator().getDefaultWorldType();
-        if (!PackDownloader.isManagedBetaPack(configuredPack)
-                && !PackDownloader.isPackPresent(getWorkspaceFolder(), configuredPack)) {
+        if (!PackDownloader.isPackPresent(getWorkspaceFolder(), configuredPack)) {
             IrisLogging.warn("Default pack '" + configuredPack
                     + "' is not installed. Please download it manually with /iris download " + configuredPack);
         }
@@ -342,25 +336,41 @@ public class StudioSVC implements IrisService {
     public void downloadSearch(VolmitSender sender, String key, boolean forceOverwrite) {
         runPackMutation(sender, LifecycleOperationCoordinator.OperationKind.PACK_DOWNLOAD, key, () -> {
             DownloadOutcome outcome = downloadSearchLocked(sender, key, forceOverwrite);
-            return finishStandalonePackMutation(sender, outcome);
+            return finishStandalonePackMutation(outcome);
         }, IrisLanguage.text(BukkitRuntimeMessages.STUDIO_S_V_C_FAILED_DOWNLOAD, MessageArgument.untrusted("key", String.valueOf(key))));
     }
 
-    public void downloadManagedBeta(VolmitSender sender, String key, boolean forceOverwrite) {
-        if (!PackDownloader.isManagedBetaPack(key)) {
-            sender.sendMessage("Iris pack '" + key + "' does not have a managed beta release.");
+    public void downloadManaged(VolmitSender sender, String key, boolean forceOverwrite) {
+        if (!PackDownloader.isManagedPack(key)) {
+            sender.sendMessage("Iris pack '" + key + "' does not have a managed Git source.");
             return;
         }
         runPackMutation(sender, LifecycleOperationCoordinator.OperationKind.PACK_DOWNLOAD, key, () -> {
-            DownloadOutcome outcome = downloadManagedBetaLocked(sender, key, forceOverwrite);
-            return finishStandalonePackMutation(sender, outcome);
-        }, "Failed to download IrisDimensions/" + key + " beta release.");
+            DownloadOutcome outcome = downloadManagedLocked(sender, key, forceOverwrite);
+            return finishStandalonePackMutation(outcome);
+        }, "Failed to download managed Iris pack '" + key + "'.");
+    }
+
+    public void downloadUrl(VolmitSender sender, String url, boolean forceOverwrite) {
+        if (!PackDownloader.isDirectZipUrl(url)) {
+            sender.sendMessage("Iris requires a valid HTTP or HTTPS .zip URL.");
+            return;
+        }
+        runPackMutation(sender, LifecycleOperationCoordinator.OperationKind.PACK_DOWNLOAD, url, () -> {
+            DownloadOutcome outcome = DownloadOutcome.from(PackDownloader.downloadUrl(
+                    getWorkspaceFolder(),
+                    url,
+                    forceOverwrite,
+                    sender::sendMessage
+            ));
+            return finishStandalonePackMutation(outcome);
+        }, "Failed to download Iris pack from '" + url + "'.");
     }
 
     public void downloadBranch(VolmitSender sender, String repo, String branch, boolean forceOverwrite) {
         runPackMutation(sender, LifecycleOperationCoordinator.OperationKind.PACK_DOWNLOAD, repo + "/" + branch, () -> {
             DownloadOutcome outcome = downloadLocked(sender, repo, branch, forceOverwrite, false, null);
-            return finishStandalonePackMutation(sender, outcome);
+            return finishStandalonePackMutation(outcome);
         }, IrisLanguage.text(BukkitRuntimeMessages.STUDIO_S_V_C_FAILED_DOWNLOAD_BRANCH, MessageArgument.untrusted("repo", String.valueOf(repo)), MessageArgument.untrusted("branch", String.valueOf(branch))));
     }
 
@@ -376,13 +386,13 @@ public class StudioSVC implements IrisService {
         String target = expectedKey == null ? repo + "/" + branch : expectedKey;
         runPackMutation(sender, LifecycleOperationCoordinator.OperationKind.PACK_DOWNLOAD, target, () -> {
             DownloadOutcome outcome = downloadLocked(sender, repo, branch, forceOverwrite, directUrl, expectedKey);
-            return finishStandalonePackMutation(sender, outcome);
+            return finishStandalonePackMutation(outcome);
         }, "Failed to download Iris pack '" + target + "'.");
     }
 
     private DownloadOutcome downloadSearchLocked(VolmitSender sender, String key, boolean forceOverwrite) throws IOException {
-        if (PackDownloader.isManagedBetaPack(key)) {
-            return downloadManagedBetaLocked(sender, key, forceOverwrite);
+        if (PackDownloader.isManagedPack(key)) {
+            return downloadManagedLocked(sender, key, forceOverwrite);
         }
 
         String descriptor = key.contains("/") ? key : getListing(false).get(key);
@@ -412,17 +422,17 @@ public class StudioSVC implements IrisService {
         return new PackListingReference(repository, ref, expectedKey);
     }
 
-    private DownloadOutcome downloadManagedBetaLocked(
+    private DownloadOutcome downloadManagedLocked(
             VolmitSender sender,
             String expectedKey,
             boolean forceOverwrite
     ) throws IOException {
-        if (!forceOverwrite && PackDownloader.isManagedBetaPackPresent(getWorkspaceFolder(), expectedKey)) {
+        if (!forceOverwrite && PackDownloader.isManagedPackPresent(getWorkspaceFolder(), expectedKey)) {
             sender.sendMessage(IrisLanguage.text(PackDownloadMessages.ALREADY_INSTALLED, MessageArgument.untrusted("key", expectedKey)));
             return DownloadOutcome.notChanged();
         }
 
-        PackDownloader.PackInstallResult result = PackDownloader.downloadManagedBeta(
+        PackDownloader.PackInstallResult result = PackDownloader.downloadManaged(
                 getWorkspaceFolder(),
                 expectedKey,
                 forceOverwrite,
@@ -431,33 +441,6 @@ public class StudioSVC implements IrisService {
         return DownloadOutcome.from(result);
     }
 
-    private boolean installMissingManagedBetaPacks(VolmitSender sender) {
-        boolean changed = false;
-        boolean restartRequired = false;
-        for (String key : missingManagedBetaPacks(getWorkspaceFolder())) {
-            IrisLogging.info("Downloading managed Iris pack " + key + " (beta release)");
-            try {
-                DownloadOutcome outcome = downloadManagedBetaLocked(sender, key, false);
-                changed |= outcome.changed();
-                restartRequired |= outcome.restartRequired();
-            } catch (Throwable failure) {
-                IrisLogging.reportError("Failed to download IrisDimensions/" + key + " beta release.", failure);
-                sender.sendMessage("Failed to download IrisDimensions/" + key + " beta release. " + errorDetail(failure));
-            }
-        }
-        return finishStandalonePackMutation(sender, new DownloadOutcome(changed, restartRequired));
-    }
-
-    static List<String> missingManagedBetaPacks(File workspaceFolder) {
-        List<String> missing = new ArrayList<>();
-        for (String key : PackDownloader.managedBetaPacks()) {
-            if (!PackDownloader.isManagedBetaPackPresent(workspaceFolder, key)) {
-                missing.add(key);
-            }
-        }
-        return List.copyOf(missing);
-    }
-
     private DownloadOutcome downloadLocked(
             VolmitSender sender,
             String repo,
@@ -1033,27 +1016,14 @@ public class StudioSVC implements IrisService {
             }
 
             if (restartRequired) {
-                sender.sendMessage("Iris must restart before the new pack data can be used.");
-                ServerConfigurator.restart();
+                sender.sendMessage("Restart the server before using the downloaded Iris pack.");
             }
         };
         runOffPrimaryThread(work);
     }
 
-    private boolean finishStandalonePackMutation(VolmitSender sender, DownloadOutcome outcome) {
-        if (!outcome.changed()) {
-            return false;
-        }
-
-        DatapackInstallResult installResult = ServerConfigurator.installDataPacksIfChanged(true);
-        return switch (installResult.status()) {
-            case FAILED -> {
-                sender.sendMessage("The pack was downloaded, but Iris could not install its datapack output.");
-                yield false;
-            }
-            case RESTART_REQUIRED -> true;
-            case READY, UNCHANGED -> outcome.restartRequired();
-        };
+    private boolean finishStandalonePackMutation(DownloadOutcome outcome) {
+        return outcome.changed() && outcome.restartRequired();
     }
 
     private void runOffPrimaryThread(Runnable work) {
diff --git a/core/src/main/java/art/arcane/iris/core/tools/IrisToolbelt.java b/core/src/main/java/art/arcane/iris/core/tools/IrisToolbelt.java
index df6deac03..767c04e1b 100644
--- a/core/src/main/java/art/arcane/iris/core/tools/IrisToolbelt.java
+++ b/core/src/main/java/art/arcane/iris/core/tools/IrisToolbelt.java
@@ -75,12 +75,7 @@ public class IrisToolbelt {
     private static final Method BUKKIT_IS_STOPPING_METHOD = resolveBukkitIsStoppingMethod();
 
     /**
-     * Will find / download / search for the dimension or return null
-     * <p>
-     * - You can provide a dimenson in the packs folder by the folder name
-     * - You can provide a github repo by using (assumes branch is master unless specified)
-     * - GithubUsername/repository
-     * - GithubUsername/repository/branch
+     * Finds an installed dimension or returns null.
      *
      * @param dimension the dimension id such as overworld or flat
      * @return the IrisDimension or null
@@ -105,18 +100,9 @@ public class IrisToolbelt {
         }
 
         if (pack == null) {
-            IrisServices.get(StudioSVC.class).downloadSearch(new VolmitSender(Bukkit.getConsoleSender(), BukkitPlatform.volmitPlugin().getTag()), reference.pack(), false);
-            String installedPackName = installedPackName(reference.pack());
-            File found = PackDirectoryResolver.resolveExisting(packsFolder, installedPackName);
-            if (found == null) {
-                found = findCaseInsensitivePack(packsFolder, installedPackName);
-            }
-            if (found != null) {
-                pack = found;
-            }
-        }
-
-        if (pack == null) {
+            IrisLogging.warn("Iris pack '" + reference.pack()
+                    + "' is not installed. Install it with /iris download " + reference.pack()
+                    + " and restart the server.");
             return null;
         }
 
diff --git a/core/src/main/resources/languages/de_DE.json b/core/src/main/resources/languages/de_DE.json
index 1bdc537a8..a646326f0 100644
--- a/core/src/main/resources/languages/de_DE.json
+++ b/core/src/main/resources/languages/de_DE.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eDie Welt wurde anscheinend bereits aus bukkit.yml entfernt",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cbukkit.yml konnte wegen {value} nicht gespeichert werden",
     "iris.bukkit.commandiris.set_debug": "§aDebug gesetzt auf: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aDownload des Pack: {pack} (Beta-Version){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aDownload des Pack: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cDu musst dich in einer Iris-Welt befinden",
     "iris.bukkit.commandiris.sending_metrics": "§aÜbermittlung von Metriken...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Pack '{key}' wurde nicht in der Pack-Liste gefunden.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Verwende /iris download <pack> branch=<branch>, um den Download manuell auszuführen.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Download von '{key}' fehlgeschlagen.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Download der Beta-Version IrisDimensions/overworld fehlgeschlagen.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Download von '{repo}' (Branch {branch}) fehlgeschlagen.",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Studio-Welt konnte nicht geöffnet werden: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Studio '{dimm}' kann nicht geöffnet werden – das Pack enthält blockierende Fehler:",
diff --git a/core/src/main/resources/languages/es_ES.json b/core/src/main/resources/languages/es_ES.json
index ea30b3829..c7f8a3d94 100644
--- a/core/src/main/resources/languages/es_ES.json
+++ b/core/src/main/resources/languages/es_ES.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eParece que el mundo ya se había eliminado de bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cNo se pudo guardar bukkit.yml debido a {value}",
     "iris.bukkit.commandiris.set_debug": "§aDepuración establecida en: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aDescargando pack: {pack} (versión beta){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aDescargando pack: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cDebes estar en un mundo de Iris",
     "iris.bukkit.commandiris.sending_metrics": "§aEnviando métricas...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "El pack '{key}' no se encontró en la lista de packs.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Usa /iris download <pack> branch=<branch> para descargarlo manualmente.",
     "iris.bukkit.runtime.studiosvc.failed_download": "No se pudo descargar '{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "No se pudo descargar la versión beta de IrisDimensions/overworld.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "No se pudo descargar '{repo}' (rama {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "No se pudo abrir el mundo de Studio: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "No se puede abrir Studio '{dimm}': el pack contiene errores bloqueantes:",
diff --git a/core/src/main/resources/languages/fi_FI.json b/core/src/main/resources/languages/fi_FI.json
index 2365bac12..7aab41c2a 100644
--- a/core/src/main/resources/languages/fi_FI.json
+++ b/core/src/main/resources/languages/fi_FI.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eNäyttää siltä, että maailma on jo poistettu. bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cTallennus epäonnistui bukkit.yml koska {value}",
     "iris.bukkit.commandiris.set_debug": "§aAseta vianetsintä: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aNoudetaan pakkaus: {pack} (beetan vapautuminen){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aNoudetaan pakkaus: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cSinun täytyy olla Iris maailma",
     "iris.bukkit.commandiris.sending_metrics": "§aLähetetään mittareita...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Pakkaus{key}' ei löytynyt pakkauslistalta.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Käyttö /iris download <pack> branch=<branch> ladata käsin.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Ei voitu ladata \"{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Ei voitu ladata IrisDimensionsOverworld beta -julkaisu.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Ei voitu ladata \"{repo}\" (ala {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Studiomaailman avaaminen epäonnistui: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Studiota ei voi avata{dimm}\" - pakkauksessa on estovirheitä:",
diff --git a/core/src/main/resources/languages/fr_FR.json b/core/src/main/resources/languages/fr_FR.json
index 5ce24e026..f809d3df1 100644
--- a/core/src/main/resources/languages/fr_FR.json
+++ b/core/src/main/resources/languages/fr_FR.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eIl semble que le monde avait déjà été supprimé de bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cImpossible d'enregistrer bukkit.yml à cause de {value}",
     "iris.bukkit.commandiris.set_debug": "§aDébogage défini sur : {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aTéléchargement du pack : {pack} (version bêta){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aTéléchargement du pack : {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cVous devez être dans un monde Iris",
     "iris.bukkit.commandiris.sending_metrics": "§aEnvoi des métriques...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Le pack '{key}' est introuvable dans la liste des packs.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Utilisez /iris download <pack> branch=<branch> pour le télécharger manuellement.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Impossible de télécharger '{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Impossible de télécharger la version bêta de IrisDimensions/overworld.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Impossible de télécharger '{repo}' (branche {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Impossible d'ouvrir le monde Studio : {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Impossible d'ouvrir Studio '{dimm}' : le pack contient des erreurs bloquantes :",
diff --git a/core/src/main/resources/languages/he_IL.json b/core/src/main/resources/languages/he_IL.json
index d3543d033..f52d85161 100644
--- a/core/src/main/resources/languages/he_IL.json
+++ b/core/src/main/resources/languages/he_IL.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eנראה כאילו העולם כבר הוסר bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cנכשל להציל bukkit.yml בגלל {value}",
     "iris.bukkit.commandiris.set_debug": "§aהגדר bug: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aהורדת חבילות: {pack} (שחרור בטא){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aהורדת חבילות: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cאתה חייב להיות בתוך Iris עולם העולם",
     "iris.bukkit.commandiris.sending_metrics": "§aשליחת מדדים...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Pack »{key}\"לא נמצאו בחבילה.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "שימוש בשימוש /iris download <pack> branch=<branch> להוריד באופן ידני.",
     "iris.bukkit.runtime.studiosvc.failed_download": "נכשל להוריד את \"{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "הורדת גרסת הבטא של IrisDimensions/overworld נכשלה.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "נכשל להוריד את \"{repo}(ברנץ' {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "נכשל לפתוח את עולם הסטודיו: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "\"לא יכול לפתוח סטודיו\"{dimm}חבילה חוסמת שגיאות:",
diff --git a/core/src/main/resources/languages/it_IT.json b/core/src/main/resources/languages/it_IT.json
index f89faca55..02f0ac2d5 100644
--- a/core/src/main/resources/languages/it_IT.json
+++ b/core/src/main/resources/languages/it_IT.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eSembra che il mondo sia già stato rimosso da bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cImpossibile salvare bukkit.yml a causa di {value}",
     "iris.bukkit.commandiris.set_debug": "§aDebug impostato su: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aDownload del pack: {pack} (versione beta){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aDownload del pack: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cDevi trovarti in un mondo Iris",
     "iris.bukkit.commandiris.sending_metrics": "§aInvio di metriche...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Il Pack '{key}' non è stato trovato nell'elenco dei Pack.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Usa /iris download <pack> branch=<branch> per eseguire manualmente il download.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Download di '{key}' non riuscito.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Download della versione beta IrisDimensions/overworld non riuscito.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Download di '{repo}' (branch {branch}) non riuscito.",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Impossibile aprire il mondo studio: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Impossibile aprire lo studio '{dimm}': il Pack contiene errori bloccanti:",
diff --git a/core/src/main/resources/languages/ja-JP.json b/core/src/main/resources/languages/ja-JP.json
index 20aabd259..7e8905100 100644
--- a/core/src/main/resources/languages/ja-JP.json
+++ b/core/src/main/resources/languages/ja-JP.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eワールドはすでに bukkit.yml から削除されているようです",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cbukkit.yml を保存できませんでした: {value}",
     "iris.bukkit.commandiris.set_debug": "§aデバッグ設定: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aパックをダウンロードしています: {pack}（ベータリリース）{value}",
     "iris.bukkit.commandiris.downloading_pack": "§aパックをダウンロードしています: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cIris ワールド内にいる必要があります",
     "iris.bukkit.commandiris.sending_metrics": "§aメトリックの送信...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "パック一覧にパック '{key}' が見つかりません。",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "手動でダウンロードするには /iris download <pack> branch=<branch> を使用してください。",
     "iris.bukkit.runtime.studiosvc.failed_download": "'{key}' のダウンロードに失敗しました。",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "IrisDimensions/overworld のベータリリースをダウンロードできませんでした。",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "'{repo}'（ブランチ {branch}）をダウンロードできませんでした。",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "スタジオワールドを開けませんでした: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "スタジオ '{dimm}' を開けません。パックに処理を妨げるエラーがあります:",
diff --git a/core/src/main/resources/languages/ko_KR.json b/core/src/main/resources/languages/ko_KR.json
index 3714cc87f..cc738c22a 100644
--- a/core/src/main/resources/languages/ko_KR.json
+++ b/core/src/main/resources/languages/ko_KR.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§e세상과 같은 모습은 이미 제거되었습니다. bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§c{value} 때문에 bukkit.yml을 저장하지 못했습니다",
     "iris.bukkit.commandiris.set_debug": "§a디버그 설정: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§a다운로드 팩: {pack} (베타 릴리스){value}",
     "iris.bukkit.commandiris.downloading_pack": "§a다운로드 팩: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cIris 월드 안에 있어야 합니다",
     "iris.bukkit.commandiris.sending_metrics": "§a메트릭 전송...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "팩 '{key}'는 팩 목록에서 찾을 수 없습니다.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "수동으로 다운로드하려면 /iris download <pack> branch=<branch>을(를) 사용하세요.",
     "iris.bukkit.runtime.studiosvc.failed_download": "다운로드 실패 '{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "다운로드 실패 IrisDimensions/overworld 베타 릴리스.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "다운로드 실패 '{repo}' (branch {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "열린 스튜디오 세계에 실패: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "열린 스튜디오 '{dimm}' - 팩은 오류를 차단했습니다.",
diff --git a/core/src/main/resources/languages/lt_LT.json b/core/src/main/resources/languages/lt_LT.json
index 69d7a4809..25266adf4 100644
--- a/core/src/main/resources/languages/lt_LT.json
+++ b/core/src/main/resources/languages/lt_LT.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eAtrodo, pasaulis jau buvo pašalintas iš bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cNepavyko įrašyti bukkit.yml dėl {value}",
     "iris.bukkit.commandiris.set_debug": "§aNustatyti derinimą į: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aSiunčiama pakuotė: {pack} (beta atsipalaidavimas){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aSiunčiama pakuotė: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cJūs turite būti Iris pasaulis",
     "iris.bukkit.commandiris.sending_metrics": "§aSiunčiami metrikos...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Pakuotė \"{key}\"nebuvo rasta pakuotės sąraše.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Naudojimas /iris download <pack> branch=<branch> atsisiųsti rankiniu būdu.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Nepavyko atsisiųsti \"{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Nepavyko atsisiųsti IrisDimensions/ overworld beta release.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Nepavyko atsisiųsti \"{repo}'(šaka {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Nepavyko atverti studijos pasaulio: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Nepavyko atverti studijos \"{dimm}\"- pakuotė turi blokavimo klaidų:",
diff --git a/core/src/main/resources/languages/nl_NL.json b/core/src/main/resources/languages/nl_NL.json
index 99aea4c38..2770c2dd1 100644
--- a/core/src/main/resources/languages/nl_NL.json
+++ b/core/src/main/resources/languages/nl_NL.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eHet lijkt erop dat de wereld al verwijderd was van bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cOpslaan is mislukt bukkit.yml vanwege {value}",
     "iris.bukkit.commandiris.set_debug": "§aDebug instellen op: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aDownloadpakket: {pack} (beta vrijgeven){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aDownloadpakket: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cJe moet in een Iris wereld",
     "iris.bukkit.commandiris.sending_metrics": "§aVerzenden van statistieken...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Verpakking{key}' werd niet gevonden in de verpakking lijst.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Gebruik /iris download <pack> branch=<branch> handmatig downloaden.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Downloaden mislukt{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Downloaden van de IrisDimensions/overworld bèta release.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Downloaden mislukt{repo}\" (tak {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Openen van studiowereld mislukt: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Kan studio niet openen '{dimm}' - Pack heeft blokkerende fouten:",
diff --git a/core/src/main/resources/languages/pl_PL.json b/core/src/main/resources/languages/pl_PL.json
index 243fb818f..f5b6c3775 100644
--- a/core/src/main/resources/languages/pl_PL.json
+++ b/core/src/main/resources/languages/pl_PL.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eWygląda na to, że świat został już usunięty z bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cNie udało się zapisać bukkit.yml z powodu {value}",
     "iris.bukkit.commandiris.set_debug": "§aUstaw debugowanie na: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aPobieranie opakowania: {pack} (uwalnianie beta){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aPobieranie opakowania: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cMusisz być w Iris świat",
     "iris.bukkit.commandiris.sending_metrics": "§aWysyłanie wskaźników...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Paczka \"{key}'nie znaleziono go na liście.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Stosowanie /iris download <pack> branch=<branch> aby pobrać ręcznie.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Nie można pobrać '{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Nie udało się pobrać IrisDimensions/ Overworld beta wydania.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Nie można pobrać '{repo}'(oddział {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Nie udało się otworzyć studio świata: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Nie można otworzyć studia \"{dimm}\"- opakowanie ma błędy blokujące:",
diff --git a/core/src/main/resources/languages/pt_PT.json b/core/src/main/resources/languages/pt_PT.json
index ce1539b76..069a45a92 100644
--- a/core/src/main/resources/languages/pt_PT.json
+++ b/core/src/main/resources/languages/pt_PT.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eParece que o mundo já foi removido de bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cFalha ao salvar bukkit.yml devido a {value}",
     "iris.bukkit.commandiris.set_debug": "§aDefinir depuração como: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aBaixando pacote: {pack} (versão beta){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aBaixando pacote: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cVocê deve estar em um Iris mundo",
     "iris.bukkit.commandiris.sending_metrics": "§aEnviando métricas...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Embalar '{key}' não foi encontrado na lista de pacotes.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Utilização /iris download <pack> branch=<branch> para baixar manualmente.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Falha ao transferir '{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Não foi possível transferir o IrisDimensions- Liberação beta.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Falha ao transferir '{repo}' (ramo {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Falha ao abrir o mundo do estúdio: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Não foi possível abrir o estúdio '{dimm}- a pack tem erros de bloqueio:",
diff --git a/core/src/main/resources/languages/ru_RU.json b/core/src/main/resources/languages/ru_RU.json
index 4ae099cc6..e4b003afd 100644
--- a/core/src/main/resources/languages/ru_RU.json
+++ b/core/src/main/resources/languages/ru_RU.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eПохоже, мир уже был удален из bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cНе удалось спасти bukkit.yml Потому что {value}",
     "iris.bukkit.commandiris.set_debug": "§aУстановить отладку для: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aСкачать пакет: {pack} (бета-релиз){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aСкачать пакет: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cВы должны быть в Iris мир",
     "iris.bukkit.commandiris.sending_metrics": "§aОтправка метрик...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Пакуй.{key}Не было найдено в списке упаковки.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Использовать /iris download <pack> branch=<branch> Скачать вручную.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Не удалось скачать{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Не удалось скачать IrisDimensions/overworld бета-версия.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Не удалось скачать{repo}' (ветка {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Не удалось открыть студию: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Не может открыть студию{dimm}У пакета есть ошибки блокировки:",
diff --git a/core/src/main/resources/languages/tr_TR.json b/core/src/main/resources/languages/tr_TR.json
index cd1dccdc6..32a7d8a20 100644
--- a/core/src/main/resources/languages/tr_TR.json
+++ b/core/src/main/resources/languages/tr_TR.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eDünya gibi görünüyor zaten kaldırıldı bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§ckurtarmak için başarısız oldu bukkit.yml Çünkü {value}",
     "iris.bukkit.commandiris.set_debug": "§aSet debug: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aİndirme paketi: {pack} (Bea release){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aİndirme paketi: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cBirde olmalısın Iris dünya dünyası",
     "iris.bukkit.commandiris.sending_metrics": "§ametrikleri gönderin...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Pack \"{key}\" paketin listesinde bulunamadı.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Kullanım Kullanımı /iris download <pack> branch=<branch> manuel olarak indirmek için.",
     "iris.bukkit.runtime.studiosvc.failed_download": "indirmek için başarısız oldu '{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "indirmek için başarısız oldu IrisDimensions/overworld beta serbest bırakılması.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "indirmek için başarısız oldu '{repo}\" (branch {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Stüdyo dünyasını açmaya başarısız oldu: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Açık stüdyo \"{dimm}\" - paket hataları engelliyor:",
diff --git a/core/src/main/resources/languages/vi_VI.json b/core/src/main/resources/languages/vi_VI.json
index 2cc7d1d87..25ff51662 100644
--- a/core/src/main/resources/languages/vi_VI.json
+++ b/core/src/main/resources/languages/vi_VI.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§eCó vẻ như thế giới đã bị loại bỏ bukkit.yml",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§cLỗi lưu bukkit.yml bởi vì {value}",
     "iris.bukkit.commandiris.set_debug": "§aĐặt lỗi là: {to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§aĐang tải về: {pack} (beta phát hành){value}",
     "iris.bukkit.commandiris.downloading_pack": "§aĐang tải về: {pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§cChắc anh đang ở trong... Iris thế giới",
     "iris.bukkit.commandiris.sending_metrics": "§aName...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "Gói '{key}Không tìm thấy trong danh sách gói hàng.",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "Dùng /iris download <pack> branch=<branch> tải về bằng tay.",
     "iris.bukkit.runtime.studiosvc.failed_download": "Lỗi tải xuống{key}'.",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "Việc tải về bị lỗi IrisDimensionsSự giải phóng của thế giới Bta.",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "Lỗi tải xuống{repo}' (branch {branch}).",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "Lỗi mở thế giới studio: {error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "Không thể mở studio{dimm}- gói có lỗi chặn:",
diff --git a/core/src/main/resources/languages/zh_CN.json b/core/src/main/resources/languages/zh_CN.json
index 44728ccca..2f314b7dc 100644
--- a/core/src/main/resources/languages/zh_CN.json
+++ b/core/src/main/resources/languages/zh_CN.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§e该世界似乎已从 bukkit.yml 中移除。",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§c无法保存 bukkit.yml：{value}",
     "iris.bukkit.commandiris.set_debug": "§a调试模式已设为：{to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§a正在下载包：{pack}（Beta 版本）{value}",
     "iris.bukkit.commandiris.downloading_pack": "§a正在下载包：{pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§c你必须位于 Iris 世界中。",
     "iris.bukkit.commandiris.sending_metrics": "§a正在发送指标...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "内容包“{key}”不在内容包列表中。",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "使用 /iris download <pack> branch=<branch> 手动下载。",
     "iris.bukkit.runtime.studiosvc.failed_download": "无法下载“{key}”。",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "无法下载 IrisDimensions/overworld 测试版。",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "无法下载“{repo}”（分支 {branch}）。",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "无法打开工作室世界：{error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "无法打开工作室“{dimm}”：内容包存在阻断错误：",
diff --git a/core/src/main/resources/languages/zh_TW.json b/core/src/main/resources/languages/zh_TW.json
index f635ab704..b54405a11 100644
--- a/core/src/main/resources/languages/zh_TW.json
+++ b/core/src/main/resources/languages/zh_TW.json
@@ -179,7 +179,6 @@
     "iris.bukkit.commandiris.looks_like_world_was_already_removed_from_bukkit_yml": "§e該世界似乎已從 bukkit.yml 中移除。",
     "iris.bukkit.commandiris.failed_save_bukkit_yml_because": "§c無法儲存 bukkit.yml：{value}",
     "iris.bukkit.commandiris.set_debug": "§a偵錯模式已設為：{to}",
-    "iris.bukkit.commandiris.downloading_pack_beta_release": "§a正在下載包：{pack}（Beta 版本）{value}",
     "iris.bukkit.commandiris.downloading_pack": "§a正在下載包：{pack}/{branch}{value}",
     "iris.bukkit.commandiris.you_must_be_iris_world": "§c你必須位於 Iris 世界中。",
     "iris.bukkit.commandiris.sending_metrics": "§a正在傳送指標...",
@@ -1153,7 +1152,6 @@
     "iris.bukkit.runtime.studiosvc.pack_was_not_found_pack_listing": "內容包「{key}」不在內容包清單中。",
     "iris.bukkit.runtime.studiosvc.use_iris_download_pack_branch_branch_download_manually": "使用 /iris download <pack> branch=<branch> 手動下載。",
     "iris.bukkit.runtime.studiosvc.failed_download": "無法下載「{key}」。",
-    "iris.bukkit.runtime.studiosvc.failed_download_irisdimensions_overworld_beta_release": "無法下載 IrisDimensions/overworld 測試版。",
     "iris.bukkit.runtime.studiosvc.failed_download_branch": "無法下載「{repo}」（分支 {branch}）。",
     "iris.bukkit.runtime.studiosvc.failed_open_studio_world": "無法開啟工作室世界：{error}",
     "iris.bukkit.runtime.studiosvc.cannot_open_studio_pack_has_blocking_errors": "無法開啟工作室「{dimm}」：內容包存在阻斷錯誤：",
diff --git a/core/src/test/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisionerTest.java b/core/src/test/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisionerTest.java
index 03b079758..b6d7f471f 100644
--- a/core/src/test/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisionerTest.java
+++ b/core/src/test/java/art/arcane/iris/core/pack/DefaultPackBootstrapProvisionerTest.java
@@ -37,23 +37,45 @@ import static org.junit.Assert.assertTrue;
 
 public class DefaultPackBootstrapProvisionerTest {
     @Test
-    public void defaultBetaSourcesArePinnedPerRequiredPack() {
-        Map<String, DefaultPackBootstrapProvisioner.PackSpec> packs = new LinkedHashMap<>();
-        for (DefaultPackBootstrapProvisioner.PackSpec pack : DefaultPackBootstrapProvisioner.defaultPacks()) {
-            packs.put(pack.key(), pack);
-        }
+    public void startupDoesNotRequireOrDownloadDefaultPacks() {
+        assertTrue(DefaultPackBootstrapProvisioner.defaultPacks().isEmpty());
+    }
 
-        assertEquals(2, packs.size());
-        assertEquals(
-                URI.create("https://github.com/IrisDimensions/overworld/releases/download/beta/overworld.zip"),
-                packs.get("overworld").source()
-        );
-        assertEquals("overworld", packs.get("overworld").requiredDimension());
-        assertEquals(
-                URI.create("https://github.com/IrisDimensions/underworld/releases/download/beta/underworld.zip"),
-                packs.get("underworld").source()
-        );
-        assertEquals("underworld", packs.get("underworld").requiredDimension());
+    @Test
+    public void emptyInstallPublishesValidDatapackWithoutNetworkRequests() throws Exception {
+        AtomicInteger requests = new AtomicInteger();
+        HttpServer server = server(packArchive("overworld", "unused"), requests);
+        Path root = Files.createTempDirectory("iris-bootstrap-empty");
+        try {
+            Path dataDirectory = root.resolve("plugins/Iris");
+            DefaultPackBootstrapProvisioner.ProvisionOptions options = new DefaultPackBootstrapProvisioner.ProvisionOptions(
+                    List.of(),
+                    HttpClient.newBuilder().connectTimeout(Duration.ofSeconds(2)).build(),
+                    Clock.fixed(Instant.parse("2026-07-12T12:00:00Z"), ZoneOffset.UTC),
+                    Duration.ofHours(1),
+                    Duration.ofSeconds(2),
+                    1,
+                    Duration.ZERO,
+                    8L * 1024L * 1024L,
+                    root
+            );
+
+            DefaultPackBootstrapProvisioner.ProvisionResult result = DefaultPackBootstrapProvisioner.provision(
+                    dataDirectory,
+                    ignored -> {
+                    },
+                    options
+            );
+
+            assertEquals(DefaultPackBootstrapProvisioner.ProvisionStatus.INSTALLED, result.status());
+            assertTrue(result.packRoots().isEmpty());
+            assertEquals(0, requests.get());
+            assertTrue(Files.isRegularFile(result.datapackRoot().resolve("pack.mcmeta")));
+            assertTrue(DefaultPackBootstrapProvisioner.isProvisioned(dataDirectory, root, List.of()));
+        } finally {
+            server.stop(0);
+            delete(root);
+        }
     }
 
     @Test
diff --git a/core/src/test/java/art/arcane/iris/core/pack/PackDownloaderTest.java b/core/src/test/java/art/arcane/iris/core/pack/PackDownloaderTest.java
index 4b43e3e55..e41fb572e 100644
--- a/core/src/test/java/art/arcane/iris/core/pack/PackDownloaderTest.java
+++ b/core/src/test/java/art/arcane/iris/core/pack/PackDownloaderTest.java
@@ -31,8 +31,10 @@ import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
 import org.mockito.Answers;
 
+import com.sun.net.httpserver.HttpServer;
 import java.io.File;
 import java.io.IOException;
+import java.net.InetSocketAddress;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -44,6 +46,7 @@ import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
@@ -53,6 +56,7 @@ import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
@@ -71,6 +75,13 @@ public class PackDownloaderTest {
         IrisPlatform platform = mock(IrisPlatform.class, Answers.CALLS_REAL_METHODS);
         PlatformStructureHooks structureHooks = mock(PlatformStructureHooks.class, Answers.CALLS_REAL_METHODS);
         when(platform.dataFolder()).thenReturn(temp.getRoot());
+        when(platform.dataFile(any(String[].class))).thenAnswer(invocation -> {
+            File file = temp.getRoot();
+            for (Object argument : invocation.getArguments()) {
+                file = new File(file, String.valueOf(argument));
+            }
+            return file;
+        });
         when(platform.structureHooks()).thenReturn(structureHooks);
         when(structureHooks.structureKeys()).thenReturn(List.of("minecraft:village"));
         when(structureHooks.jigsawStructureKeys()).thenReturn(List.of("minecraft:village"));
@@ -90,23 +101,74 @@ public class PackDownloaderTest {
     }
 
     @Test
-    public void resolvesDefaultOverworldBetaRelease() {
-        assertEquals(
-                "https://github.com/IrisDimensions/overworld/releases/download/beta/overworld.zip",
-                PackDownloader.defaultOverworldReleaseUrl()
-        );
+    public void resolvesDefaultOverworldGitSource() {
+        assertEquals("IrisDimensions/overworld", PackDownloader.defaultOverworldRepository());
+        assertEquals("master", PackDownloader.defaultOverworldRef());
         assertTrue(PackDownloader.isDefaultOverworld("overworld"));
-        assertTrue(PackDownloader.isManagedBetaPack("overworld"));
-        assertEquals(List.of("overworld", "underworld"), PackDownloader.managedBetaPacks());
+        assertTrue(PackDownloader.isManagedPack("overworld"));
+        assertEquals(List.of("overworld", "underworld"), PackDownloader.managedPacks());
     }
 
     @Test
-    public void resolvesUnderworldBetaRelease() {
-        assertEquals(
-                "https://github.com/IrisDimensions/underworld/releases/download/beta/underworld.zip",
-                PackDownloader.underworldReleaseUrl()
-        );
-        assertTrue(PackDownloader.isManagedBetaPack("underworld"));
+    public void resolvesUnderworldGitSource() {
+        assertEquals("IrisDimensions/underworld", PackDownloader.underworldRepository());
+        assertEquals("main", PackDownloader.underworldRef());
+        assertTrue(PackDownloader.isManagedPack("underworld"));
+    }
+
+    @Test
+    public void recognizesOnlyHttpZipUrlsAsDirectSources() {
+        assertTrue(PackDownloader.isDirectZipUrl("https://packs.example.test/overworld.zip"));
+        assertTrue(PackDownloader.isDirectZipUrl("http://127.0.0.1/pack.ZIP?token=value"));
+        assertFalse(PackDownloader.isDirectZipUrl("https://packs.example.test/overworld.tar.gz"));
+        assertFalse(PackDownloader.isDirectZipUrl("file:///tmp/overworld.zip"));
+        assertFalse(PackDownloader.isDirectZipUrl("not-a-url"));
+    }
+
+    @Test
+    public void directZipUrlInstallsSingleDimensionPackAndRequiresRestart() throws Exception {
+        Path archive = temp.newFile("direct-pack.zip").toPath();
+        Map<String, String> entries = new LinkedHashMap<>();
+        entries.put("README.md", "Direct pack");
+        entries.put("wrapped/dimensions/direct_pack.json", "{\"name\":\"Direct\",\"regions\":[\"local\"],"
+                + "\"structures\":[{\"nativeStructures\":[{\"structure\":\"test:future_structure\"}]}],"
+                + "\"logicalHeight\":256,\"dimensionHeight\":{\"min\":-64,\"max\":320}}");
+        entries.put("wrapped/regions/local.json", "{\"name\":\"Local\",\"landBiomes\":[\"local\"]}");
+        entries.put("wrapped/biomes/local.json", "{\"name\":\"Local\",\"derivative\":\"minecraft:plains\"}");
+        writeArchive(archive, entries);
+        byte[] response = Files.readAllBytes(archive);
+        AtomicInteger requests = new AtomicInteger();
+        HttpServer server = HttpServer.create(new InetSocketAddress("127.0.0.1", 0), 0);
+        server.createContext("/direct-pack.zip", exchange -> {
+            requests.incrementAndGet();
+            exchange.sendResponseHeaders(200, response.length);
+            exchange.getResponseBody().write(response);
+            exchange.close();
+        });
+        server.start();
+        try {
+            File packsFolder = temp.newFolder("direct-url-packs");
+            String url = "http://127.0.0.1:" + server.getAddress().getPort() + "/direct-pack.zip";
+
+            PackDownloader.PackInstallResult result = PackDownloader.downloadUrl(
+                    packsFolder,
+                    url,
+                    false,
+                    ignored -> {
+                    }
+            );
+
+            assertNotNull(result);
+            assertEquals("direct_pack", result.key());
+            assertTrue(result.changed());
+            assertTrue(result.restartRequired());
+            assertEquals(1, requests.get());
+            assertTrue(Files.isRegularFile(
+                    packsFolder.toPath().resolve("direct_pack/dimensions/direct_pack.json")
+            ));
+        } finally {
+            server.stop(0);
+        }
     }
 
     @Test
@@ -118,11 +180,11 @@ public class PackDownloaderTest {
         writeDimension(packsFolder.toPath().resolve("underworld"), "underworld_roof");
 
         assertTrue(PackDownloader.isPackPresent(packsFolder, "underworld"));
-        assertFalse(PackDownloader.isManagedBetaPackPresent(packsFolder, "underworld"));
+        assertFalse(PackDownloader.isManagedPackPresent(packsFolder, "underworld"));
 
         writeDimension(packsFolder.toPath().resolve("underworld"), "underworld");
         assertTrue(Files.isDirectory(dimensions));
-        assertTrue(PackDownloader.isManagedBetaPackPresent(packsFolder, "underworld"));
+        assertTrue(PackDownloader.isManagedPackPresent(packsFolder, "underworld"));
     }
 
     @Test
@@ -146,6 +208,7 @@ public class PackDownloaderTest {
 
         assertNotNull(result);
         assertTrue(result.changed());
+        assertTrue(result.restartRequired());
         assertTrue(Files.isRegularFile(target.resolve("dimensions/underworld.json")));
         assertTrue(Files.isRegularFile(target.resolve("dimensions/underworld_roof.json")));
         assertFalse(Files.exists(target.resolve("partial.txt")));
@@ -157,9 +220,9 @@ public class PackDownloaderTest {
         assertFalse(PackDownloader.isDefaultOverworld("theend"));
         assertFalse(PackDownloader.isDefaultOverworld(""));
         assertFalse(PackDownloader.isDefaultOverworld(null));
-        assertFalse(PackDownloader.isManagedBetaPack("theend"));
-        assertFalse(PackDownloader.isManagedBetaPack(""));
-        assertFalse(PackDownloader.isManagedBetaPack(null));
+        assertFalse(PackDownloader.isManagedPack("theend"));
+        assertFalse(PackDownloader.isManagedPack(""));
+        assertFalse(PackDownloader.isManagedPack(null));
     }
 
     @Test
@@ -299,7 +362,7 @@ public class PackDownloaderTest {
 
         assertEquals(feedback.toString(), "replaceable", result.key());
         assertTrue(result.changed());
-        assertFalse(result.restartRequired());
+        assertTrue(result.restartRequired());
         assertEquals("new", Files.readString(target.toPath().resolve("state.txt"), StandardCharsets.UTF_8));
         assertFalse(Files.exists(target.toPath().resolve("old-only.txt")));
         assertTransactionStateClean(packsFolder);
diff --git a/core/src/test/java/art/arcane/iris/core/service/StudioSVCManagedBetaPackTest.java b/core/src/test/java/art/arcane/iris/core/service/StudioSVCManagedBetaPackTest.java
deleted file mode 100644
index 044a9d2e3..000000000
--- a/core/src/test/java/art/arcane/iris/core/service/StudioSVCManagedBetaPackTest.java
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Iris is a World Generator for Minecraft Servers
- * Copyright (c) 2026 Arcane Arts (Volmit Software)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package art.arcane.iris.core.service;
-
-import org.junit.Test;
-
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.Comparator;
-import java.util.List;
-import java.util.stream.Stream;
-
-import static org.junit.Assert.assertEquals;
-
-public class StudioSVCManagedBetaPackTest {
-    @Test
-    public void startupSelectsOnlyMissingManagedBetaPacks() throws IOException {
-        Path workspace = Files.createTempDirectory("iris-managed-beta-startup");
-        try {
-            assertEquals(
-                    List.of("overworld", "underworld"),
-                    StudioSVC.missingManagedBetaPacks(workspace.toFile())
-            );
-
-            createPack(workspace, "overworld");
-            assertEquals(
-                    List.of("underworld"),
-                    StudioSVC.missingManagedBetaPacks(workspace.toFile())
-            );
-
-            createDimension(workspace, "underworld", "underworld_roof");
-            assertEquals(
-                    List.of("underworld"),
-                    StudioSVC.missingManagedBetaPacks(workspace.toFile())
-            );
-
-            createPack(workspace, "underworld");
-            assertEquals(List.of(), StudioSVC.missingManagedBetaPacks(workspace.toFile()));
-        } finally {
-            deleteTree(workspace);
-        }
-    }
-
-    private static void createPack(Path workspace, String key) throws IOException {
-        createDimension(workspace, key, key);
-    }
-
-    private static void createDimension(Path workspace, String folder, String key) throws IOException {
-        Path dimensions = Files.createDirectories(workspace.resolve(folder).resolve("dimensions"));
-        Files.writeString(dimensions.resolve(key + ".json"), "{}", StandardCharsets.UTF_8);
-    }
-
-    private static void deleteTree(Path root) throws IOException {
-        try (Stream<Path> paths = Files.walk(root)) {
-            for (Path path : paths.sorted(Comparator.comparingInt(Path::getNameCount).reversed()).toList()) {
-                Files.deleteIfExists(path);
-            }
-        }
-    }
-}
diff --git a/core/src/test/java/art/arcane/iris/core/service/StudioSVCPackDownloadContractTest.java b/core/src/test/java/art/arcane/iris/core/service/StudioSVCPackDownloadContractTest.java
new file mode 100644
index 000000000..1a321aa08
--- /dev/null
+++ b/core/src/test/java/art/arcane/iris/core/service/StudioSVCPackDownloadContractTest.java
@@ -0,0 +1,24 @@
+package art.arcane.iris.core.service;
+
+import org.junit.Test;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class StudioSVCPackDownloadContractTest {
+    @Test
+    public void downloadsRequireManualRestartWithoutMutatingLiveDatapacks() throws Exception {
+        String source = Files.readString(Path.of("src/main/java/art/arcane/iris/core/service/StudioSVC.java"));
+        int mutationStart = source.indexOf("private void runPackMutation(");
+        int mutationEnd = source.indexOf("private boolean finishStandalonePackMutation(", mutationStart);
+        int finishEnd = source.indexOf("private void runOffPrimaryThread(", mutationEnd);
+        String downloadMutation = source.substring(mutationStart, finishEnd);
+
+        assertTrue(downloadMutation.contains("Restart the server before using the downloaded Iris pack."));
+        assertFalse(downloadMutation.contains("ServerConfigurator.restart()"));
+        assertFalse(downloadMutation.contains("installDataPacksIfChanged"));
+    }
+}