diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index efa6438..bea2cbc 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -17,12 +17,10 @@
 [ -n "${SPCD_REF_RELEASE}" ] || SPCD_REF_RELEASE="main"
 [ -n "${SPCD_REF_STAGING}" ] || SPCD_REF_STAGING="dev"
 
-[ -n "${SPCD_URL_ALMA}" ] ||
-    SPCD_URL_ALMA="https://repo.almalinux.org"
 [ -n "${SPCD_URL_ALPINE}" ] ||
     SPCD_URL_ALPINE="https://dl-cdn.alpinelinux.org/alpine"
 [ -n "${SPCD_URL_ARCH}" ] ||
-    SPCD_URL_ARCH="https://geo.mirror.pkgbuild.com/\$repo/os/\$arch"
+    SPCD_URL_ARCH="https://geo.mirror.pkgbuild.com"
 [ -n "${SPCD_URL_DEBIAN}" ] ||
     SPCD_URL_DEBIAN="https://deb.debian.org/debian"
 [ -n "${SPCD_URL_EPEL}" ] ||
@@ -34,7 +32,7 @@
 [ -n "${SPCD_URL_PYTHON}" ] ||
     SPCD_URL_PYTHON="https://pypi.org/simple"
 [ -n "${SPCD_URL_ROCKY}" ] ||
-    SPCD_URL_ROCKY="https://dl.rockylinux.org"
+    SPCD_URL_ROCKY="https://dl.rockylinux.org/\$contentdir"
 [ -n "${SPCD_URL_UBUNTU}" ] ||
     SPCD_URL_UBUNTU="https://ubuntu.mirrors.ovh.net/ubuntu"
 
@@ -557,6 +555,70 @@ ${SPCD_PROJECT_ROOT}$(basename "${GITHUB_SERVER_URL}")"
     esac
     spcd_split
     spcd_os_printenv "SPCD_PM"
+    # specific
+    case "${SPCD_OS_ID}" in
+    "${SPCD_OS_ALMA}")
+        SPCD_URL_DEFAULT="https://repo.almalinux.org/almalinux"
+        ;;
+    "${SPCD_OS_ALPINE}")
+        SPCD_URL_DEFAULT="https://dl-cdn.alpinelinux.org/alpine"
+        ;;
+    "${SPCD_OS_ARCH}")
+        SPCD_URL_DEFAULT="https://geo.mirror.pkgbuild.com"
+        ;;
+    "${SPCD_OS_DEBIAN}")
+        SPCD_URL_DEFAULT="http://deb.debian.org/debian"
+        ;;
+    "${SPCD_OS_FEDORA}")
+        SPCD_URL_DEFAULT="http://download.example/pub/fedora/linux/releases"
+        ;;
+    "${SPCD_OS_OPENSUSE}")
+        SPCD_URL_DEFAULT="http://download.opensuse.org"
+        ;;
+    "${SPCD_OS_ROCKY}")
+        SPCD_URL_DEFAULT="http://dl.rockylinux.org/\$contentdir"
+        ;;
+    "${SPCD_OS_UBUNTU}")
+        SPCD_URL_DEFAULT="http://archive.ubuntu.com/ubuntu"
+        ;;
+    *) ;;
+    esac
+    SPCD_URL_CHOSEN="${SPCD_URL_DEFAULT}"
+    case "${SPCD_OS_ID}" in
+    "${SPCD_OS_ALMA}")
+        [ -n "${SPCD_URL_ALMA}" ] && SPCD_URL_CHOSEN="${SPCD_URL_ALMA}"
+        ;;
+    "${SPCD_OS_ALPINE}")
+        [ -n "${SPCD_URL_ALPINE}" ] && SPCD_URL_CHOSEN="${SPCD_URL_ALPINE}"
+        ;;
+    "${SPCD_OS_ARCH}")
+        [ -n "${SPCD_URL_ARCH}" ] && SPCD_URL_CHOSEN="${SPCD_URL_ARCH}"
+        ;;
+    "${SPCD_OS_DEBIAN}")
+        [ -n "${SPCD_URL_DEBIAN}" ] && SPCD_URL_CHOSEN="${SPCD_URL_DEBIAN}" ||
+            SPCD_URL_CHOSEN="https://deb.debian.org/debian"
+        ;;
+    "${SPCD_OS_FEDORA}")
+        [ -n "${SPCD_URL_FEDORA}" ] && SPCD_URL_CHOSEN="${SPCD_URL_FEDORA}" ||
+            SPCD_URL_CHOSEN="https://rpmfind.net/linux/fedora/linux/releases"
+        ;;
+    "${SPCD_OS_OPENSUSE}")
+        [ -n "${SPCD_URL_OPENSUSE}" ] &&
+            SPCD_URL_CHOSEN="${SPCD_URL_OPENSUSE}" ||
+            SPCD_URL_CHOSEN="https://download.opensuse.org"
+        ;;
+    "${SPCD_OS_ROCKY}")
+        [ -n "${SPCD_URL_ROCKY}" ] && SPCD_URL_CHOSEN="${SPCD_URL_ROCKY}" ||
+            SPCD_URL_CHOSEN="https://dl.rockylinux.org/\$contentdir"
+        ;;
+    "${SPCD_OS_UBUNTU}")
+        [ -n "${SPCD_URL_UBUNTU}" ] && SPCD_URL_CHOSEN="${SPCD_URL_UBUNTU}" ||
+            SPCD_URL_CHOSEN="https://ubuntu.mirrors.ovh.net/ubuntu"
+        ;;
+    *) ;;
+    esac
+    spcd_split
+    spcd_os_printenv "SPCD_URL_DEFAULT" "SPCD_URL_CHOSEN"
     # set python alias
     SPCD_PYTHON_ALIAS="python3"
     spcd_split
@@ -764,73 +826,31 @@ spcd_step__packages_set_repositories() {
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}")
         case "${SPCD_OS_VERSION}" in
-        "9")
-            set -- \
-                "-appstream" \
-                "-baseos" \
-                "-crb" \
-                "-extras" \
-                "-highavailability" \
-                "-nfv" \
-                "-plus" \
-                "-resilientstorage" \
-                "-rt" \
-                "-sap" \
-                "-saphana"
-            ;;
-        "8")
-            set -- \
-                "" \
-                "-ha" \
-                "-nfv" \
-                "-plus" \
-                "-powertools" \
-                "-resilientstorage" \
-                "-rt" \
-                "-sap" \
-                "-saphana"
-            ;;
+        "8") spcd_spr__file="/etc/yum.repos.d/almalinux.repo" ;;
+        "9") spcd_spr__file="/etc/yum.repos.d/almalinux-baseos.repo" ;;
         *) ;;
         esac
-        for spcd_spr__file in "${@}"; do
-            spcd_os_sed "/etc/yum.repos.d/almalinux${spcd_spr__file}.repo" \
-                "|^mirrorlist|# mirrorlist|" \
-                "|https://repo.almalinux.org|${SPCD_URL_ALMA}|" \
-                "|^# baseurl|baseurl|"
-        done
+        spcd_os_sed "${spcd_spr__file}" \
+            "|^mirrorlist|# mirrorlist|" \
+            "|${SPCD_URL_DEFAULT}|${SPCD_URL_CHOSEN}|" \
+            "|^# baseurl|baseurl|"
         ;;
     "${SPCD_OS_ALPINE}")
-        spcd_os_write "/etc/apk/repositories" "\
-${SPCD_URL_ALPINE}/v${SPCD_OS_VERSION}/main
-${SPCD_URL_ALPINE}/v${SPCD_OS_VERSION}/community
-"
-        ;;
-    "${SPCD_OS_ARCH}")
-        spcd_os_write "/etc/pacman.d/mirrorlist" "\
-Server = ${SPCD_URL_ARCH}
+        spcd_spr__file="/etc/apk/repositories"
+        spcd_os_write "${spcd_spr__file}" "\
+${SPCD_URL_CHOSEN}/v${SPCD_OS_VERSION}/main
+${SPCD_URL_CHOSEN}/v${SPCD_OS_VERSION}/community
 "
         ;;
     "${SPCD_OS_DEBIAN}")
-        spcd_os_write "/etc/apt/sources.list" "\
-deb ${SPCD_URL_DEBIAN} ${SPCD_OS_VERSION} main
-deb ${SPCD_URL_DEBIAN} ${SPCD_OS_VERSION}-backports main
-deb ${SPCD_URL_DEBIAN} ${SPCD_OS_VERSION}-updates main
-deb ${SPCD_URL_DEBIAN}-security ${SPCD_OS_VERSION}-security main
+        spcd_spr__file="/etc/apt/sources.list"
+        spcd_os_write "${spcd_spr__file}" "\
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION} main
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION}-backports main
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION}-updates main
+deb ${SPCD_URL_CHOSEN}-security ${SPCD_OS_VERSION}-security main
 "
         ;;
-    "${SPCD_OS_FEDORA}")
-        for spcd_spr__file in \
-            "fedora" \
-            "fedora-updates" \
-            "fedora-updates-testing"; do
-            spcd_os_sed "/etc/yum.repos.d/${spcd_spr__file}.repo" \
-                "|^metalink|# metalink|" \
-                "|http://download.example|${SPCD_URL_FEDORA}|" \
-                "|^#baseurl|baseurl|"
-        done
-        spcd_os_sed "/etc/yum.repos.d/fedora-cisco-openh264.repo" \
-            "|^enabled=1|# enabled=0|"
-        ;;
     "${SPCD_OS_OPENSUSE}")
         for spcd_spr__file in \
             "backports-update" \
@@ -841,48 +861,27 @@ deb ${SPCD_URL_DEBIAN}-security ${SPCD_OS_VERSION}-security main
             "update" \
             "openh264"; do
             spcd_os_sed "/etc/zypp/repos.d/repo-${spcd_spr__file}.repo" \
-                "|http://download.opensuse.org|${SPCD_URL_OPENSUSE}|"
+                "|${SPCD_URL_DEFAULT}|${SPCD_URL_CHOSEN}|"
         done
         ;;
     "${SPCD_OS_ROCKY}")
         case "${SPCD_OS_VERSION}" in
-        "9")
-            set -- \
-                "rocky" \
-                "rocky-addons" \
-                "rocky-devel" \
-                "rocky-extras"
-            ;;
-        "8")
-            set -- \
-                "Rocky-AppStream" \
-                "Rocky-BaseOS" \
-                "Rocky-Debuginfo" \
-                "Rocky-Devel" \
-                "Rocky-Extras" \
-                "Rocky-HighAvailability" \
-                "Rocky-NFV" \
-                "Rocky-Plus" \
-                "Rocky-PowerTools" \
-                "Rocky-RT" \
-                "Rocky-ResilientStorage" \
-                "Rocky-Sources"
-            ;;
+        "8") spcd_spr__file="/etc/yum.repos.d/Rocky-BaseOS.repo" ;;
+        "9") spcd_spr__file="/etc/yum.repos.d/rocky.repo" ;;
         *) ;;
         esac
-        for spcd_spr__file in "${@}"; do
-            spcd_os_sed "/etc/yum.repos.d/${spcd_spr__file}.repo" \
-                "|^mirrorlist|# mirrorlist|" \
-                "|http://dl.rockylinux.org|${SPCD_URL_ROCKY}|" \
-                "|^#baseurl|baseurl|"
-        done
+        spcd_os_sed "${spcd_spr__file}" \
+            "|^mirrorlist|# mirrorlist|" \
+            "|${SPCD_URL_DEFAULT}|${SPCD_URL_CHOSEN}|" \
+            "|^#baseurl|baseurl|"
         ;;
     "${SPCD_OS_UBUNTU}")
-        spcd_os_write "/etc/apt/sources.list" "\
-deb ${SPCD_URL_UBUNTU} ${SPCD_OS_VERSION} main universe
-deb ${SPCD_URL_UBUNTU} ${SPCD_OS_VERSION}-backports main universe
-deb ${SPCD_URL_UBUNTU} ${SPCD_OS_VERSION}-updates main universe
-deb ${SPCD_URL_UBUNTU} ${SPCD_OS_VERSION}-security main universe
+        spcd_spr__file="/etc/apt/sources.list"
+        spcd_os_write "${spcd_spr__file}" "\
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION} main universe
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION}-backports main universe
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION}-updates main universe
+deb ${SPCD_URL_CHOSEN} ${SPCD_OS_VERSION}-security main universe
 "
         ;;
     *) ;;