I published the source code to my personal ZX Spectrum emulator, GZX as free software. It is hosted on bitbucket.org and published under a BSD-style license. Watch the video as I introduce GZX and its history.
Note that this is the kind of 'here's what I have, use it for whatever you want, I'll continue working on it for myself' thing. I am not soliciting code contributions and I cannot guarantee I would accept any since this is really a personal project. Of course, feedback is always welcome! Please keep in mind I am a busy person with several other projects and a life, so this is way down my priority list.
Still I hope to do more work in this interesting area.
HelenOS (Kids) Camp 2018 Report
8 months ago