Pretty cool! As the sun rises in the East, so too does the graphics world constantly need up to date cross platform tools like this. My first real programming job was in this domain.
I will take a look into it, if people think it would be useful it might be a nice feature to add. I haven’t really used webgl myself so not sure on the difference between that and GLSL version 330. I drew a line at GLSL 330 / Shader Model 3 for now because it makes graphics API backends easier to implement and more consistent.. Keep an eye on the repo in future :)