diff --git a/ct/checkmk.sh b/ct/checkmk.sh
index 34d362a52..8307fecf7 100644
--- a/ct/checkmk.sh
+++ b/ct/checkmk.sh
@@ -28,7 +28,7 @@ function update_script() {
     exit
   fi
 
-  RELEASE=$(curl -fsSL https://api.github.com/repos/checkmk/checkmk/tags | grep "name" | awk '{print substr($2, 3, length($2)-4) }' | tr ' ' '\n' | grep -Ev 'rc|b' | sort -V | tail -n 1)
+  RELEASE=$(curl -fsSL https://api.github.com/repos/checkmk/checkmk/tags?per_page=50 | jq -r '.[].name' | sed 's/^v//' | grep -Ev 'rc|b' | sort -V | tail -n 1)
   RELEASE="${RELEASE%%+*}"
   msg_info "Updating ${APP} to v${RELEASE}"
   $STD omd stop monitoring
diff --git a/ct/flaresolverr.sh b/ct/flaresolverr.sh
index 4f140ac1c..01b436d37 100644
--- a/ct/flaresolverr.sh
+++ b/ct/flaresolverr.sh
@@ -28,7 +28,7 @@ function update_script() {
     msg_error "No ${APP} Installation Found!"
     exit
   fi
-  if [[ $(grep -E '^VERSION_ID=' /etc/os-release) == *"12"* ]]; then
+  if [[ "$(get_os_version_major)" == "12" ]]; then
     msg_error "Wrong Debian version detected!"
     msg_error "You must upgrade your LXC to Debian Trixie before updating."
     exit
diff --git a/ct/paperless-ngx.sh b/ct/paperless-ngx.sh
index 3f98ac8dc..a45694c13 100644
--- a/ct/paperless-ngx.sh
+++ b/ct/paperless-ngx.sh
@@ -65,8 +65,7 @@ function update_script() {
       CLEAN_INSTALL=1 fetch_and_deploy_gh_release "paperless" "paperless-ngx/paperless-ngx" "prebuild" "latest" "/opt/paperless" "paperless*tar.xz"
       CLEAN_INSTALL=1 fetch_and_deploy_gh_release "jbig2enc" "ie13/jbig2enc" "tarball" "latest" "/opt/jbig2enc"
 
-      . /etc/os-release
-      if [ "$VERSION_CODENAME" = "bookworm" ]; then
+      if [ "$(get_os_info codename)" = "bookworm" ]; then
         setup_gs
       else
         ensure_dependencies ghostscript
@@ -140,8 +139,7 @@ function update_script() {
       CLEAN_INSTALL=1 fetch_and_deploy_gh_release "paperless" "paperless-ngx/paperless-ngx" "prebuild" "latest" "/opt/paperless" "paperless*tar.xz"
       CLEAN_INSTALL=1 fetch_and_deploy_gh_release "jbig2enc" "ie13/jbig2enc" "tarball" "latest" "/opt/jbig2enc"
 
-      . /etc/os-release
-      if [ "$VERSION_CODENAME" = "bookworm" ]; then
+      if [ "$(get_os_info codename)" = "bookworm" ]; then
         setup_gs
       else
         msg_info "Installing Ghostscript"
diff --git a/ct/photoprism.sh b/ct/photoprism.sh
index 0717b68ff..1ed1bec76 100644
--- a/ct/photoprism.sh
+++ b/ct/photoprism.sh
@@ -42,7 +42,7 @@ function update_script() {
 
     fetch_and_deploy_gh_release "photoprism" "photoprism/photoprism" "prebuild" "latest" "/opt/photoprism" "*linux-amd64.tar.gz"
 
-    LIBHEIF_URL=$(curl -fsSL "https://dl.photoprism.app/dist/libheif/" | grep -oP "libheif-bookworm-amd64-v[0-9\.]+\.tar\.gz" | sort -V | tail -n 1)
+    LIBHEIF_URL=$(curl -fsSL "https://dl.photoprism.app/dist/libheif/" | grep -oP "libheif-$(get_os_info codename)-amd64-v[0-9\.]+\.tar\.gz" | sort -V | tail -n 1)
     if [[ "${LIBHEIF_URL}" != "$(cat ~/.photoprism_libheif 2>/dev/null)" ]] || [[ ! -f ~/.photoprism_libheif ]]; then
       msg_info "Updating PhotoPrism LibHeif"
       ensure_dependencies libvips42
diff --git a/ct/proxmox-datacenter-manager.sh b/ct/proxmox-datacenter-manager.sh
index c235f8915..449287bc8 100644
--- a/ct/proxmox-datacenter-manager.sh
+++ b/ct/proxmox-datacenter-manager.sh
@@ -28,7 +28,7 @@ function update_script() {
     exit
   fi
 
-  if grep -q 'Debian GNU/Linux 12' /etc/os-release && [ -f /etc/apt/sources.list.d/proxmox-release-bookworm.list ] && [ -f /etc/apt/sources.list.d/pdm-test.list ]; then
+  if [[ "$(get_os_version_major)" == "12" ]] && [ -f /etc/apt/sources.list.d/proxmox-release-bookworm.list ] && [ -f /etc/apt/sources.list.d/pdm-test.list ]; then
     msg_info "Updating outdated outdated source formats"
     echo "deb [signed-by=/usr/share/keyrings/proxmox-archive-keyring.gpg] http://download.proxmox.com/debian/pdm bookworm pdm-test" >/etc/apt/sources.list.d/pdm-test.list
     curl -fsSL https://enterprise.proxmox.com/debian/proxmox-archive-keyring-trixie.gpg -o /usr/share/keyrings/proxmox-archive-keyring.gpg
@@ -37,7 +37,7 @@ function update_script() {
     msg_ok "Updated old sources"
   fi
 
-  if grep -q 'Debian GNU/Linux 13' /etc/os-release; then
+  if [[ "$(get_os_version_major)" == "13" ]]; then
     if [ -f "/etc/apt/sources.list.d/pdm-test.sources" ]; then
       if ! grep -qx "Enabled: false" "/etc/apt/sources.list.d/pdm-test.sources"; then
           echo "Enabled: false" >> "/etc/apt/sources.list.d/pdm-test.sources"
diff --git a/ct/zabbix.sh b/ct/zabbix.sh
index 984fc1c5b..4bd9a79cb 100644
--- a/ct/zabbix.sh
+++ b/ct/zabbix.sh
@@ -29,9 +29,8 @@ function update_script() {
     exit
   fi
 
-  . /etc/os-release
-  if [ "$VERSION_CODENAME" != "trixie" ]; then
-    msg_error "Unsupported Debian version: $VERSION_CODENAME – please upgrade to Debian 13 (Trixie) before updating Zabbix."
+  if [ "$(get_os_info codename)" != "trixie" ]; then
+    msg_error "Unsupported Debian version: $(get_os_info codename) – please upgrade to Debian 13 (Trixie) before updating Zabbix."
     exit
   fi
 
diff --git a/install/checkmk-install.sh b/install/checkmk-install.sh
index 154ded1a4..eff935aa7 100644
--- a/install/checkmk-install.sh
+++ b/install/checkmk-install.sh
@@ -14,7 +14,7 @@ network_check
 update_os
 
 msg_info "Install Checkmk"
-RELEASE=$(curl -fsSL https://api.github.com/repos/checkmk/checkmk/tags | grep "name" | awk '{print substr($2, 3, length($2)-4) }' | tr ' ' '\n' | grep -Ev 'rc|b' | sort -V | tail -n 1)
+RELEASE=$(curl -fsSL https://api.github.com/repos/checkmk/checkmk/tags?per_page=50 | jq -r '.[].name' | sed 's/^v//' | grep -Ev 'rc|b' | sort -V | tail -n 1)
 RELEASE="${RELEASE%%+*}"
 curl -fsSL "https://download.checkmk.com/checkmk/${RELEASE}/check-mk-raw-${RELEASE}_0.$(get_os_info codename)_amd64.deb" -o "/opt/checkmk.deb"
 $STD apt-get install -y /opt/checkmk.deb
diff --git a/install/cockpit-install.sh b/install/cockpit-install.sh
index aee48496a..53d6b3883 100644
--- a/install/cockpit-install.sh
+++ b/install/cockpit-install.sh
@@ -15,26 +15,25 @@ network_check
 update_os
 
 msg_info "Installing Cockpit"
-source /etc/os-release
 cat <<EOF >/etc/apt/sources.list.d/debian-backports.sources
 Types: deb deb-src
 URIs: http://deb.debian.org/debian
-Suites: ${VERSION_CODENAME}-backports
+Suites: $(get_os_info codename)-backports
 Components: main
 Enabled: yes
 Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
 EOF
 
 $STD apt update
-$STD apt install -t ${VERSION_CODENAME}-backports cockpit cracklib-runtime --no-install-recommends -y
+$STD apt install -t $(get_os_info codename)-backports cockpit cracklib-runtime --no-install-recommends -y
 sed -i "s/root//g" /etc/cockpit/disallowed-users
 msg_ok "Installed Cockpit"
 
 read -r -p "Would you like to install 45Drives' cockpit-file-sharing, cockpit-identities, and cockpit-navigator  <y/N> " prompt
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   install_45drives=true
-  if [[ "${VERSION_ID}" -ge 13 ]]; then
-    read -r -p "Debian ${VERSION_ID} is not officially supported by 45Drives yet, would you like to continue anyway? <y/N> " prompt
+  if [[ "$(get_os_version_major)" -ge 13 ]]; then
+    read -r -p "Debian $(get_os_version_major) is not officially supported by 45Drives yet, would you like to continue anyway? <y/N> " prompt
     if [[ ! "${prompt,,}" =~ ^(y|yes)$ ]]; then
       install_45drives=false
     fi
diff --git a/install/lldap-install.sh b/install/lldap-install.sh
index fca73160e..83a2d5688 100644
--- a/install/lldap-install.sh
+++ b/install/lldap-install.sh
@@ -15,17 +15,17 @@ network_check
 update_os
 
 msg_info "Installing lldap"
-source /etc/os-release
-os=$ID
-if [ "$os" == "ubuntu" ]; then
+OS_ID=$(get_os_info id)
+OS_VERSION=$(get_os_info version)
+if [ "$OS_ID" == "ubuntu" ]; then
   DISTRO="xUbuntu"
 else
-  DISTRO="${os^}"
+  DISTRO="${OS_ID^}"
 fi
-curl -fsSL https://download.opensuse.org/repositories/home:Masgalor:LLDAP/${DISTRO}_${VERSION_ID}/Release.key | gpg --dearmor >/usr/share/keyrings/home_Masgalor_LLDAP.gpg
+curl -fsSL https://download.opensuse.org/repositories/home:Masgalor:LLDAP/${DISTRO}_${OS_VERSION}/Release.key | gpg --dearmor >/usr/share/keyrings/home_Masgalor_LLDAP.gpg
 cat <<EOF >/etc/apt/sources.list.d/home:Masgalor:LLDAP.sources
 Types: deb
-URIs: http://download.opensuse.org/repositories/home:/Masgalor:/LLDAP/${DISTRO}_${VERSION_ID}/
+URIs: http://download.opensuse.org/repositories/home:/Masgalor:/LLDAP/${DISTRO}_${OS_VERSION}/
 Suites: /
 Signed-By: /usr/share/keyrings/home_Masgalor_LLDAP.gpg
 EOF
diff --git a/install/mqtt-install.sh b/install/mqtt-install.sh
index 32dd8dc8f..f4457321d 100644
--- a/install/mqtt-install.sh
+++ b/install/mqtt-install.sh
@@ -14,7 +14,6 @@ network_check
 update_os
 
 msg_info "Installing Mosquitto MQTT Broker"
-source /etc/os-release
 $STD apt update
 $STD apt -y install mosquitto mosquitto-clients
 
diff --git a/install/pangolin-install.sh b/install/pangolin-install.sh
index b522551ac..6c1440b47 100644
--- a/install/pangolin-install.sh
+++ b/install/pangolin-install.sh
@@ -182,8 +182,7 @@ http:
 EOF
 $STD npm run db:push
 
-. /etc/os-release
-if [ "$VERSION_CODENAME" = "trixie" ]; then
+if [ "$(get_os_info codename)" = "trixie" ]; then
   echo "net.ipv4.ip_forward=1" >>/etc/sysctl.d/sysctl.conf
   $STD sysctl -p /etc/sysctl.d/sysctl.conf
 else
diff --git a/install/photoprism-install.sh b/install/photoprism-install.sh
index 1d54199ce..421960581 100644
--- a/install/photoprism-install.sh
+++ b/install/photoprism-install.sh
@@ -40,7 +40,7 @@ msg_info "Installing PhotoPrism (Patience)"
 mkdir -p /opt/photoprism/{cache,config,photos,storage,temp}
 mkdir -p /opt/photoprism/photos/{originals,import}
 mkdir -p /opt/photoprism_backups
-LIBHEIF_URL=$(curl -fsSL "https://dl.photoprism.app/dist/libheif/" | grep -oP "libheif-bookworm-amd64-v[0-9\.]+\.tar\.gz" | sort -V | tail -n 1)
+LIBHEIF_URL=$(curl -fsSL "https://dl.photoprism.app/dist/libheif/" | grep -oP "libheif-$(get_os_info codename)-amd64-v[0-9\.]+\.tar\.gz" | sort -V | tail -n 1)
 curl -fsSL "https://dl.photoprism.app/dist/libheif/$LIBHEIF_URL" -o /tmp/libheif.tar.gz
 tar -xzf /tmp/libheif.tar.gz -C /usr/local
 ldconfig
diff --git a/install/wireguard-install.sh b/install/wireguard-install.sh
index b14d7e15f..5ade271c6 100644
--- a/install/wireguard-install.sh
+++ b/install/wireguard-install.sh
@@ -31,8 +31,7 @@ if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   cd /etc/wgdashboard/src
   chmod u+x wgd.sh
   $STD ./wgd.sh install
-  . /etc/os-release
-  if [ "$VERSION_CODENAME" = "trixie" ]; then
+  if [ "$(get_os_info codename)" = "trixie" ]; then
     echo "net.ipv4.ip_forward=1" >>/etc/sysctl.d/sysctl.conf
     $STD sysctl -p /etc/sysctl.d/sysctl.conf
   else