Added staging/stable release check to final install

helpers/calamares-sources-final

@@ -4,25 +4,24 @@
 #
 
 CHROOT=$(mount | grep proc | grep calamares | awk '{print $3}' | sed -e "s#/proc##g")
-RELEASE="sid"
+# Check if staging file exists to determine release
+if [ -f "$CHROOT/staging" ]; then
+    RELEASE="staging"
+else
+    RELEASE="stable"
+fi
 
 rm $CHROOT/etc/apt/sources.list
 rm $CHROOT/etc/apt/sources.list.d/rakuos.list
 cat << EOF > $CHROOT/etc/apt/sources.list.d/rakuos.sources
 #RakuOS
 Types: deb
-URIs: https://repo.rakuos.org/rakuos
-Suites: rakuos
+URIs: https://repo.rakuos.org/
+Suites: rakuos $RELEASE
 Components: main contrib non-free
 Signed-By: /usr/share/keyrings/rakuos-archive-keyring.gpg
-
-# Debian upstream
-Types: deb
-URIs: http://repo.rakuos.org/upstream/
-Suites: sid
-Components: main contrib non-free non-free-firmware
-Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
-
+EOF
+cat << EOF > $CHROOT/etc/apt/sources.list.d/xanmod.sources
 #XanMod
 Types: deb
 URIs: http://deb.xanmod.org/