A whole lot more work fixed the brotli pkg-config issue and add some missing checksums
draft default tip
2021-03-17, Gary Kramlich

Automatically figureout the modulesets_dir path
draft
2021-03-17, Gary Kramlich

Technically got everything building, but not in a clean environment
draft
2021-03-16, Gary Kramlich

Initial revision, lots of work to do, but we're almost building gtk itself
draft
2021-03-16, Gary Kramlich