Initially, I had picked Codeberg as an in-between offering a balance of decentralization and community. I do think Gitea servers tend to be lonely islands, which is why I'm still on the fence about my own. It's also worth noting I have in fact found community on GitHub which I never thought I would. Frankly, I'm unsure where this will go, but I wanted to get it set up and see what I do with it over time.
This might also be a good time to look into git mirrors and an email based workflow for contributions, as issues/PRs/labels are almost impossible to mirror between different git servers past an initial migration.