diff --git a/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml b/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml
deleted file mode 100644
index c672ea1..0000000
--- a/.forgejo/workflows/archlinux:base-20231112.0.191179.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-on: [push]
-jobs:
-  job:
-    container:
-      image: archlinux:base-20231112.0.191179
-    steps:
-    - name: cd
-      env:
-        CD: ${{secrets.cd}}
-      run: eval ${{vars.cd}}
-
-    - run: cd-list-environment
-    - run: cd-browse-workspace
diff --git a/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml b/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml
deleted file mode 100644
index bac2557..0000000
--- a/.forgejo/workflows/archlinux:base-20240101.0.204074.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-on: [push]
-jobs:
-  job:
-    container:
-      image: archlinux:base-20240101.0.204074
-    steps:
-    - name: cd
-      env:
-        CD: ${{secrets.cd}}
-      run: eval ${{vars.cd}}
-
-    - run: cd-list-environment
-    - run: cd-browse-workspace
diff --git a/cd.sh b/cd.sh
index f562f1b..05827d4 100644
--- a/cd.sh
+++ b/cd.sh
@@ -43,14 +43,16 @@ cd_set_environment_variables () {
     case "${CD_OS_ID}" in
         "almalinux") CD_OS_ID="${CD_OS_ALMA}" ;;
         "alpine") CD_OS_ID="${CD_OS_ALPINE}" ;;
-        "arch") CD_OS_ID="${CD_OS_ARCH}" ;;
         "debian") CD_OS_ID="${CD_OS_DEBIAN}" ;;
         "rocky") CD_OS_ID="${CD_OS_ROCKY}" ;;
         "ubuntu") CD_OS_ID="${CD_OS_UBUNTU}" ;;
         *) cd_error_os "CD_OS_ID" ;;
     esac
     case "${CD_OS_ID}" in
-        "${CD_OS_ALMA}"|"${CD_OS_ARCH}"|"${CD_OS_ROCKY}")
+        "${CD_OS_DEBIAN}"|"${CD_OS_UBUNTU}")
+            CD_OS_VERSION="$(cd_grep_os VERSION_CODENAME)"
+        ;;
+        "${CD_OS_ALMA}"|"${CD_OS_ROCKY}")
             CD_OS_VERSION=$(cd_grep_os VERSION_ID \
                 | sed "s|^\([0-9]\+\)\..*|\1|")
         ;;
@@ -58,9 +60,6 @@ cd_set_environment_variables () {
             CD_OS_VERSION=$(cd_grep_os VERSION_ID \
                 | sed "s|^\([0-9]\+\.[0-9]\+\)\..*|\1|")
         ;;
-        "${CD_OS_DEBIAN}"|"${CD_OS_UBUNTU}")
-            CD_OS_VERSION="$(cd_grep_os VERSION_CODENAME)"
-        ;;
     esac
     case "${CD_OS_ID}" in
         "${CD_OS_ALMA}"|"${CD_OS_ROCKY}")
@@ -75,12 +74,6 @@ cd_set_environment_variables () {
                 *) cd_error_os "CD_OS_VERSION" ;;
             esac
         ;;
-        "${CD_OS_ARCH}")
-            case "${CD_OS_VERSION}" in
-                "20231112"|"20240101") ;;
-                *) cd_error_os "CD_OS_VERSION" ;;
-            esac
-        ;;
         "${CD_OS_DEBIAN}")
             case "${CD_OS_VERSION}" in
                 "bookworm"|"bullseye") ;;
@@ -89,7 +82,7 @@ cd_set_environment_variables () {
         ;;
         "${CD_OS_UBUNTU}")
             case "${CD_OS_VERSION}" in
-                "mantic"|"noble") ;;
+                "noble"|"mantic") ;;
                 *) cd_error_os "CD_OS_VERSION" ;;
             esac
         ;;
@@ -97,6 +90,7 @@ cd_set_environment_variables () {
     cd_echo "CD_OS_ID" "CD_OS_VERSION"
     # universal
     CD_DNS_FILE="/etc/resolv.conf"
+    CD_PKG_CA="ca-certificates"
     CD_PKG_GIT="git"
     cd_split
     cd_echo "CD_DNS_FILE" "CD_PKG_CA" "CD_PKG_GIT"
@@ -118,10 +112,8 @@ cd_set_environment_variables () {
         "${CD_OS_ALMA}"|"${CD_OS_ROCKY}")
             CD_CMD_CLEAN="dnf clean all"
             CD_CMD_INSTALL="dnf install --assumeyes"
-            CD_CMD_QUERY="rpm --query"
             CD_CMD_UPDATE="dnf makecache"
             CD_CMD_UPGRADE="dnf upgrade --assumeyes"
-            CD_PKG_CA="ca-certificates"
             CD_PKG_PKG=""
             CD_PM_CONF_PATH="/etc/dnf/dnf.conf"
             CD_PM_CONF_TEXT="\
@@ -138,10 +130,8 @@ skip_if_unavailable=False
         "${CD_OS_ALPINE}")
             CD_CMD_CLEAN="apk cache purge"
             CD_CMD_INSTALL="apk add"
-            CD_CMD_QUERY="apk info"
             CD_CMD_UPDATE="apk update"
             CD_CMD_UPGRADE="apk upgrade"
-            CD_PKG_CA="ca-certificates-bundle"
             CD_PKG_PKG=""
             CD_PM_CONF_PATH=""
             CD_PM_CONF_TEXT=""
@@ -151,10 +141,8 @@ skip_if_unavailable=False
         "${CD_OS_DEBIAN}"|"${CD_OS_UBUNTU}")
             CD_CMD_CLEAN="apt-get clean"
             CD_CMD_INSTALL="apt-get install --assume-yes"
-            CD_CMD_QUERY="dpkg-query --show"
             CD_CMD_UPDATE="apt-get update"
             CD_CMD_UPGRADE="apt-get upgrade --assume-yes"
-            CD_PKG_CA="ca-certificates"
             CD_PKG_PKG="apt-utils"
             CD_PM_CONF_PATH="/etc/apt/apt.conf.d/apt.conf"
             CD_PM_CONF_TEXT="\
@@ -169,8 +157,7 @@ Dir::Etc::SourceParts \"\";
         ;;
     esac
     cd_split
-    cd_echo "CD_CMD_CLEAN" \
-        "CD_CMD_INSTALL" "CD_CMD_QUERY" "CD_CMD_UPDATE" "CD_CMD_UPGRADE"
+    cd_echo "CD_CMD_CLEAN" "CD_CMD_INSTALL" "CD_CMD_UPDATE" "CD_CMD_UPGRADE"
     cd_split
     cd_echo "CD_PKG_PKG" "CD_PM_CONF_PATH" "CD_PM_HTTPS_PATH"
     # specific
@@ -610,7 +597,6 @@ CD_ERROR_OS=1
 
 CD_OS_ALMA="alma"
 CD_OS_ALPINE="alpine"
-CD_OS_ARCH="arch"
 CD_OS_DEBIAN="debian"
 CD_OS_ROCKY="rocky"
 CD_OS_UBUNTU="ubuntu"