::In your ~/.hgrc file, set a remotecmd value in the [ui] section giving the exact path to hg.

::On the server, create a ~/.ssh/environment file that defines an appropriate PATH, and add PermitUserEnvironment yes to /etc/sshd_config.

:That's because allowing anonymous, unauthenticated HTTP clients to push changes into your repository would be a huge security hole. If you are on a private network and you know that all HTTP clients are trustworthy, you can add

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