I'm more interested in the cross platform thing from avocode than css generation. As an webdeveloper on linux, doing the frontend development work from psds is

I'm more interested in the cross platform thing from avocode than css generation. As an webdeveloper on linux, doing the frontend development work from psds is always a pain, as gimp has only partial support (mostly : can't work with text and still have mis-rendering issues) and I don't see myself buying the overpriced photoshop and opening a virtual machine (or uploading any psd I may use) just to get font sizes and names. I don't know anyone using sketch, but I suppose for what I see it's macosx only ?