This is an example custom config repo that does the following:

• adds Seedvault
  • remote and project added in local_manifests/custom.xml
  • product_packages added in vendor/config/main.mk
  • backup transport enabled and set in vendor/overlay/common/frameworks/base/packages/SettingsProvider/res/values/default.xml
• adds microG
  • sigspoof patch in hooks/aosp_build_pre.sh
  • project added in local_manifests/custom.xml
  • product_packages added in vendor/config/main.mk
• adds AuroraStore, AuroraDroid and AuroraServices
  • project added in local_manifests/custom.xml
  • product_packages added in vendor/config/main.mk
• adds a fix to make newer versions of google camera to work
  • google_experience.xml added in prebuilt
  • prodcut_copy_files in vendor/config/main.mk
• adds prebuilt Vanadium webview instead of Chrome