We use Arcanist + Phabricator, but main repo is SVN yes. We also have two git mirrors. We use Premake5 instead of CMake, for historical reasons. an attempt was

We use Arcanist + Phabricator, but main repo is SVN yes. We also have two git mirrors. We use Premake5 instead of CMake, for historical reasons. an attempt was made at Meson but it was too messy on Windows. We only switched to C++17 because Mozilla's SpiderMonkey headers required us to. Else we'd still be at C++11