He sometimes blogs and has various things on GitHub, including:
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Mega Drive MIDI Interface
A Mega Drive ROM written in C that exposes the console's YM2612 FM Synthesis & PSG chip as a MIDI interface over the Mega Everdrive X7 cartridge's USB connector. Provides a partial implementation of the General MIDI specification, as well as providing compatibility with GenMDM CC parameters.
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Fastly VCL Experiments
Various proof-of-concept VCL snippets; including OAuth 1.0 signature validation on the edge. I have also co-authored an open-source tool for deploying VCL into Fastly.
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ZX Spec: A TDD Framework for the ZX Spectrum
Aids development of Z80 assembly code on the ZX Spectrum by providing a framework for practicing Test-Driven Development. Written purely to prove that it was possible to do. It also scratched an 8-bit itch of mine and was pretty fun!
Find him on SoundCloud and MixCloud also.