diff --git a/lib.sh b/lib.sh
index b416c3a..b157cf5 100644
--- a/lib.sh
+++ b/lib.sh
@@ -8,7 +8,8 @@ true
 
 RUSTDESK_INSTALL_DIR=/var/lib/rustdesk-server
 RUSTDESK_LOG_DIR=/var/log/rustdesk-server
-
+ARCH=$(uname -m)
+TITLE="RustDesk Linux installer"
 WANIP4=$(curl -s -k -m 5 -4 https://api64.ipify.org)
 
 ############ Functions
@@ -66,6 +67,96 @@ input_box_flow() {
     echo "$RESULT"
 }
 
+identify_os() {
+if [ -f /etc/os-release ]
+then
+    # freedesktop.org and systemd
+    # shellcheck source=/dev/null
+    source /etc/os-release
+    OS=$NAME
+    VER=$VERSION_ID
+    UPSTREAM_ID=${ID_LIKE,,}
+
+    # Fallback to ID_LIKE if ID was not 'ubuntu' or 'debian'
+    if [ "${UPSTREAM_ID}" != "debian" ] && [ "${UPSTREAM_ID}" != "ubuntu" ]
+    then
+        UPSTREAM_ID="$(echo "${ID_LIKE,,}" | sed s/\"//g | cut -d' ' -f1)"
+    fi
+elif type lsb_release >/dev/null 2>&1
+then
+    # linuxbase.org
+    OS=$(lsb_release -si)
+    VER=$(lsb_release -sr)
+elif [ -f /etc/lsb-release ]
+then
+    # For some versions of Debian/Ubuntu without lsb_release command
+    # shellcheck source=/dev/null
+    source /etc/os-release
+    OS=$DISTRIB_ID
+    VER=$DISTRIB_RELEASE
+elif [ -f /etc/debian_version ]
+then
+    # Older Debian, Ubuntu, etc.
+    OS=Debian
+    VER=$(cat /etc/debian_version)
+elif [ -f /etc/SuSE-release ]
+then
+    # Older SuSE, etc.
+    OS=SuSE
+    VER=$(cat /etc/SuSE-release)
+elif [ -f /etc/redhat-release ]
+then
+    # Older Red Hat, CentOS, etc.
+    OS=RedHat
+    VER=$(cat /etc/redhat-release)
+else
+    # Fall back to uname, e.g. "Linux <version>", also works for BSD, etc.
+    OS=$(uname -s)
+    VER=$(uname -r)
+fi
+}
+
+purge_linux_package() {
+    # Identify which OS it is
+    if [ -z "${ID}" ] || [ -z "$OS" ] || [ -z "${UPSTREAM_ID}" ]
+    then
+        identify_os
+    fi
+    # Purge based on OS
+    if [ "${ID}" = "debian" ] || [ "$OS" = "Ubuntu" ] || [ "$OS" = "Debian" ] || [ "${UPSTREAM_ID}" = "ubuntu" ] || [ "${UPSTREAM_ID}" = "debian" ]
+    then
+        apt-get purge "${1}" -y
+        apt-get autoremove -y
+    elif [ "$OS" = "CentOS" ] || [ "$OS" = "RedHat" ] || [ "${UPSTREAM_ID}" = "rhel" ] || [ "${OS}" = "Almalinux" ] || [ "${UPSTREAM_ID}" = "Rocky*" ]
+    then
+        yum purge "${1}" -y
+    elif [ "${ID}" = "arch" ] || [ "${UPSTREAM_ID}" = "arch" ]
+    then
+        pacman -S purge "${1}"
+    fi
+}
+
+install_linux_package() {
+    # Identify which OS it is
+    if [ -z "${ID}" ] || [ -z "$OS" ] || [ -z "${UPSTREAM_ID}" ]
+    then
+        identify_os
+    fi
+
+    # Install based on OS
+    if [ "${ID}" = "debian" ] || [ "$OS" = "Ubuntu" ] || [ "$OS" = "Debian" ] || [ "${UPSTREAM_ID}" = "ubuntu" ] || [ "${UPSTREAM_ID}" = "debian" ]
+    then
+        apt-get install "${1}" -y
+    elif [ "$OS" = "CentOS" ] || [ "$OS" = "RedHat" ] || [ "${UPSTREAM_ID}" = "rhel" ] || [ "${OS}" = "Almalinux" ] || [ "${UPSTREAM_ID}" = "Rocky*" ]
+    then
+        yum install "${1}" -y
+    elif [ "${ID}" = "arch" ] || [ "${UPSTREAM_ID}" = "arch" ]
+    then
+        pacman -S install "${1}"
+    fi
+}
+
+
 
 ## bash colors
 # Reset