diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index 506b610..efa6438 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -557,70 +557,6 @@ ${SPCD_PROJECT_ROOT}$(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