You'll want to be cautious, because readme and promises are not software; they're attempting to squat on[1] nektos/act[2] which itself is the 20/80 of GitHub Actions
You'll almost certainly be happier using woodpecker[3] or some other "external" CI system so you don't have to hopes-and-prayers your CI system
1: https://code.forgejo.org/forgejo/act
2: https://codeberg.org/forgejo/forgejo/src/tag/v10.0.3/go.mod#... and https://codeberg.org/forgejo/forgejo/src/tag/v10.0.3/go.mod#...
3: https://github.com/woodpecker-ci/woodpecker (Apache 2)