Ah, could you share more on what caused it to not run on Mac (native)? One last alternative is to try with a different browser (eg Firefox > Chrome > Edge in order of compatibility).
The game requires WebGL 2.0 and I suspect Safari does not support it. I could downgrade to 1.0 but it would have to come at a compromise of visuals and for now I want to maintain a consistent look with the Steam version.
Could you elaborate more on the UI? Details and specifics are welcome!