diff --git a/bin/omarchy-iso-make b/bin/omarchy-iso-make
index 2ddb894..3a1391e 100755
--- a/bin/omarchy-iso-make
+++ b/bin/omarchy-iso-make
@@ -27,9 +27,13 @@ while [[ $# -gt 0 ]]; do
     OMARCHY_MIRROR=edge
     shift
     ;;
+  --rc)
+    OMARCHY_MIRROR=rc
+    shift
+    ;;
   *)
     echo "Unknown option: $1"
-    echo "Usage: $0 [--no-cache] [--no-boot-offer] [--local-source] [--dev] [--edge]"
+    echo "Usage: $0 [--no-cache] [--no-boot-offer] [--local-source] [--dev] [--edge] [--rc]"
     exit 1
     ;;
   esac
diff --git a/builder/build-iso.sh b/builder/build-iso.sh
index 625b4b3..7d4a59a 100755
--- a/builder/build-iso.sh
+++ b/builder/build-iso.sh
@@ -9,11 +9,7 @@ pacman --noconfirm -Sy archiso git sudo base-devel jq grub
 
 # Install omarchy-keyring for package verification during build
 # The [omarchy] repo is defined in /configs/pacman-online.conf with SigLevel = Optional TrustAll
-if [[ $OMARCHY_MIRROR == "edge" ]]; then
-  pacman --config /configs/pacman-online-edge.conf --noconfirm -Sy omarchy-keyring
-else
-  pacman --config /configs/pacman-online-stable.conf --noconfirm -Sy omarchy-keyring
-fi
+pacman --config /configs/pacman-online-${OMARCHY_MIRROR}.conf --noconfirm -Sy omarchy-keyring
 pacman-key --populate omarchy
 
 # Setup build locations
@@ -85,11 +81,7 @@ all_packages+=($(grep -v '^#' /builder/archinstall.packages | grep -v '^$'))
 
 # Download all the packages to the offline mirror inside the ISO
 mkdir -p /tmp/offlinedb
-if [[ $OMARCHY_MIRROR == "edge" ]]; then
-  pacman --config /configs/pacman-online-edge.conf --noconfirm -Syw "${all_packages[@]}" --cachedir $offline_mirror_dir/ --dbpath /tmp/offlinedb
-else
-  pacman --config /configs/pacman-online-stable.conf --noconfirm -Syw "${all_packages[@]}" --cachedir $offline_mirror_dir/ --dbpath /tmp/offlinedb
-fi
+pacman --config /configs/pacman-online-${OMARCHY_MIRROR}.conf --noconfirm -Syw "${all_packages[@]}" --cachedir $offline_mirror_dir/ --dbpath /tmp/offlinedb
 repo-add --new "$offline_mirror_dir/offline.db.tar.gz" "$offline_mirror_dir/"*.pkg.tar.zst
 
 # Create a symlink to the offline mirror instead of duplicating it.