I wonder if they tried to cooperate with SFC, as it seems they have choosen an Open Source license incompatible with Kallithea (AGPL vs GPL3)? Would those two projects try to work together?
There is not much choice if you need Mercurial self-hosting unfortunatelly, so this move is much appreciated.
[1] http://ebb.org/bkuhn/blog/2014/07/15/why-kallithea.html [2] https://kallithea-scm.org/ [3] https://sfconservancy.org/