Hacker News Reader

Is there any other Git host/platform that supports it? Gitea/GitLab?

What about Sigstore, is there any plan on supporting it?

You can find the feature request for supporting keyless sigstore/gitsign at https://gitlab.com/gitlab-org/gitlab/-/issues/364428

Sorry, I missed the context your original question was about Sigstore. Someone answered in https://news.ycombinator.com/item?id=32569872

Worth calling out that gitsign works with any Git host for the commit signatures / verification!

The main piece that's platform specific is the Verified badges that you see in the UI + any CI checks.

I think github support came out a year and half after the feature was available in git (nov 2021), so that may going to be a while :(