platform_manifest_twrp_omni/omni-default.xml

<?xml version="1.0" encoding="UTF-8"?>
<manifest>

  <!-- FIRST: Remove unused/forked AOSP Projects -->
  <include name="remove.xml" />

  <!-- Include forked AOSP -->
  <include name="omni-aosp.xml" />

  <!-- OmniROM Projects -->
  <project path="android" name="android" remote="omnirom" revision="android-8.0" />

  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-8.0" />

</manifest>