eveeifyeve: There is a Hydra plugin to make a jobset per PR from Github webhooks. It does work and it is possible to connect it to GHA status reports, but it has pretty minimal usage, poorly documented, and might run into bugs. (i've used it at a small scale)

Another option would be to submit jobs directly using the Hydra API per GitHub Action. Also, this use-case isn't thoroughly developed either.

I do think some kind of easy Hydra / Generic-Forge integration would be nice to have. I see a bunch of places essentially re-inventing this all the time.