alt Hacker NewsSimilar boat myself too, finished moving all important stuff from GitHub to self-hosted Forgejo with cross-platform builds. Not only do I avoid all the downtime stuff, but E2E builds also takes ~20% of the completion time it used to take, since now my runners have dedicated hardware hosted at home.
To maintain a fair comparison, GitHub has supported self-hosted runners for several years (maybe that doesn’t work for your specific usage, for whatever reason).