Just grab the manifest and sync to get device sources
Required patches for IMS: https://gerrit.pixelexperience.org/q/topic:%22mediatek-ims%22+(status:open%20OR%20status:merged)
# Grab Local Manifest
curl -o .repo/local_manifests/local_manifests.xml https://raw.githubusercontent.com/realme-mt6771-devs/local_manifest/main/twelve.xml --create-dirs
# Sync
repo sync -j$(nproc --all) --force-sync