I host mine on gogs.sr.ht, a private git service I run for myself and friends. I used to host it on a private GitHub repository. There are other options like a private Bitbucket repository, or even just a public repo on GitHub - since the passwords are all encrypted, you don't really have to worry about that.

I'll happily give an sr.ht account to anyone who wants one for this purpose, mention HN in your application comments: https://sr.ht