I like to request that kallithea could support "hgweb" interface for a separate path like "https://kallithea-scm.org/hgweb/repos/kallithea/" as "hg serve" or "SCM-Manager" does.
We use reviewboard  for our repository. RB needs access to a "hgweb" of the repository to get all information. Even our own scripts needs access to the REST-API of Mercurial like "http://hgweb/repon/branches?style=json".
So it would be helpful if kallithea could provide the hgweb/gitweb interface, too. SCM-Manager  also provides it as it forks a separate python process for Mercurial.