I've just published timrec, one of my smaller projects, on Github under the permissive MIT license.
This is a small Linux system service that records media from various sources based on a provided schedule. It can be used to record media such as internet radio or DVB (using a DVB tuner). I've been running it for the last 2+ years on a Raspberry Pi as a complete internet radio recording solution. (The DVB support is a fresh addition.)
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.
You can now easily install coastline packages in HelenOS using the 'pkg install' command. It will automatically download and install the latest build of the package from ci.helenos.org (you need your HelenOS box to be connected to the Internet, obviously).
Previously you would have to download the package, uncompress it (into .tar format) and copy it to the overlay directory in your source tree. Then you would have to rebuild the boot CD image and restart the system.