Deploy multiple TypeScript functions to Google Cloud

[peckpeck20]

How can I build and deploy multiple TS cloud functions from the same codebase?

I'm following your TS guide which focuses on the single function use case -> docs/typescript.md

Project structure :

Deploy command :

gcloud functions deploy catalogUpdateFunction \ --gen2 \ --region=europe-north1 \ --runtime=nodejs22 \ --source=. \ --entry-point=catalogUpdateFunction \ --trigger-http

Open questions:

1. What should be the value of the main field in package.json ?
2. What should the source be for the deploy command?

Setting the source value to --source=./build/functions \ fails with the following error: ERROR: (gcloud.functions.deploy) Invalid value for [--source]: Provided source directory does not have file [package.json] which is required for [nodejs22]. Did you specify the right source?