I could compile greg-king5's branch from the command line with standard Unix-like programming tools (e.g. Make, gcc, etc): https://github.com/greg-king5/cc65/tree/commander-x16I should really start playing around with cc95. Is there a somewhat useful toolchain for Windows, yet? (Of course, ideally I'd love to see it running directly on the CX16.)
I think you can compile cc65 on Windows with tools such as MinGW and it should work.