> Unfortunately the Hg people decided that the only stable interface would be the CLI
Citation needed for this.
Mercurial has the best VCS GUI I have ever seen, TortoiseHg. And there are quite a few web UIs supporting Mercurial, namely Kallithea and GitLab’s fork heptapod.net.
> Mercurial's internals are continually evolving to be simpler, more consistent, and more powerful, a process we hope will continue for the foreseeable future. Unfortunately, this process means we will regularly be changing interfaces in ways that break third-party code in various (mostly minor) ways. For the vast majority of third party code, the best approach is to use Mercurial's published, documented, and stable API: the command line interface.
Citation needed for this.
Mercurial has the best VCS GUI I have ever seen, TortoiseHg. And there are quite a few web UIs supporting Mercurial, namely Kallithea and GitLab’s fork heptapod.net.