Hi; taisei is a game, it has three renderers: gl33, gles20, and gles30. To support later two it need a SPIRV-Cross tool.
I was told on IRC that the game wasn't playable due to graphics issues, but it worked fine on my machine; testing and help are welcome.
Game build is "developer" build; it enables cheats, but greatly improves the diagnostics (output to console). If configured as "debugoptimized" with "-Ddeveloper=false", then it's diagnostics are same as for "release". I didn't notice any impact on performance with my 7-years old laptop, from those options.
SPIRV-Cross seem to have tests, but i didn't get how to start them yet.