I am building localgcp - This is localstack / floci equivalent for Google Cloud platform : https://github.com/slokam-ai/localgcp - currently supports 14 services, including Vertex AI and BigQuery.

Part of building this, I decided to build a BigQuery emulator from scratch and learned a lot about GoogleSQL (previously ZetaSQL) along the way: https://github.com/slokam-ai/localbq

I plan to maintain and improve this going forward. The goal is to see how much can emulators actually do.

Website: https://localgcp.com/