diff --git a/cd.sh b/cd.sh
index 3b24eeb..622af39 100644
--- a/cd.sh
+++ b/cd.sh
@@ -4,8 +4,8 @@
 CD_DEFAULT_DNS="\
 9.9.9.9 \
 "
-CD_DEFAULT_MIRROR_ALMA="https://repo.almalinux.org/almalinux"
-CD_DEFAULT_MIRROR_DEBIAN="https://deb.debian.org/debian"
+CD_DEFAULT_REPO_ALMA="https://repo.almalinux.org/almalinux"
+CD_DEFAULT_REPO_DEBIAN="https://deb.debian.org/debian"
 
 CD_PYTHON_MODULES="\
 cd \
@@ -66,6 +66,8 @@ local text
     #
     case "${CD_OS_ID}" in
         "${CD_OS_DEBIAN}")
+            CD_OS_REPO="${CD_DEFAULT_REPO_DEBIAN}"
+            [ "${CD_REPO_DEBIAN}" ] && CD_OS_REPO="${CD_REPO_DEBIAN}"
             case "${CD_OS_VERSION}" in
                 "bookworm"|"bullseye") cd_nop ;;
                 *) cd_error_os "CD_OS_VERSION" ;;
@@ -76,6 +78,8 @@ local text
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
         ;;
         "${CD_OS_ALMA}")
+            CD_OS_REPO="${CD_DEFAULT_REPO_ALMA}"
+            [ "${CD_REPO_ALMA}" ] && CD_OS_REPO="${CD_REPO_ALMA}"
             case "${CD_OS_VERSION}" in
                 "8."*|"9."*) cd_nop ;;
                 *) cd_error_os "CD_OS_VERSION" ;;
@@ -147,15 +151,18 @@ local file
     case "${CD_OS_ID}" in
         "${CD_OS_DEBIAN}")
             cd_write "/etc/apt/sources.list" "\
-deb https://deb.debian.org/debian ${CD_OS_VERSION} main
-deb https://deb.debian.org/debian ${CD_OS_VERSION}-backports main
-deb https://deb.debian.org/debian ${CD_OS_VERSION}-updates main
-deb https://deb.debian.org/debian-security ${CD_OS_VERSION}-security main
+deb ${CD_OS_REPO} ${CD_OS_VERSION} main
+deb ${CD_OS_REPO} ${CD_OS_VERSION}-backports main
+deb ${CD_OS_REPO} ${CD_OS_VERSION}-updates main
+deb ${CD_OS_REPO}-security ${CD_OS_VERSION}-security main
 "
         ;;
         "${CD_OS_ALMA}")
             file="/etc/yum.repos.d/almalinux.repo"
-            cd_sed "${file}" "|^m|# m|" "|^# b|b|"
+            cd_sed "${file}" \
+            "|^mirrorlist|# mirrorlist|" \
+            "|${CD_DEFAULT_REPO_ALMA}|${CD_OS_REPO}|" \
+            "|^# baseurl|baseurl|"
             cd_cat "${file}"
         ;;
     esac
diff --git a/readme.md b/readme.md
index 959b897..6f37a17 100644
--- a/readme.md
+++ b/readme.md
@@ -20,14 +20,15 @@ from various CA, CI, OCI / OS.
 
 ## How
 
-| Variable | Description             |
-|----------|-------------------------|
-| CD_CA_n  | Numbered CA certificate |
-| CD_DNS   | Space separated servers |
+| Variable       | Description             |
+|----------------|-------------------------|
+| CD_CA_n        | Numbered CA certificate |
+| CD_DNS         | Space separated servers |
+| CD_REPO_ALMA   | Alma repository URL     |
+| CD_REPO_DEBIAN | Debian repository URL   |
 
 ## Tasks
 
 * integrate project repository cloning
 * override repository and framework locations
-* redefine package repositories mirror locations
 * write Python bootstrap