Software Portfolio

A selection of software projects, from electronics tooling to retro-computing research. More at github.com/andete.

Electronics & embedded

• madparts — a functional electronics footprint editor (Python). 79 stars. No longer maintained.

MSX & retro computing

• ym2413 — openMSX YM2413 sound chip reverse-engineering project. 25 stars. Dormant, kept for reference.
• Disk Peek (source) — client-side viewer/extractor for retro floppy disk images (MSX, Atari ST, MS-DOS FAT12), entirely in the browser. Claude-assisted.
• Tape Peek (source) — client-side viewer/extractor for MSX cassettes (.cas images and .wav tape recordings). Claude-assisted.
• MSX Audio Play (source) — client-side player for MSX music (.kss/.kssx, .vgm/.vgz) with retro-80s visualizers and per-channel mute, entirely in the browser. Claude-assisted.
• PSG Playground (source) — an interactive, hands-on tour of the MSX1 AY-3-8910 sound chip: three tone channels, noise, the mixer and the envelope generator, exposed and playable in the browser. Claude-assisted.
• SCC Playground (source) — an interactive, hands-on tour of the Konami SCC (K051649) wavetable chip from the MSX MegaROM cartridges: five wavetable voices you draw by hand, the shared ch4/ch5 table, and the 50 Hz driver that fakes the envelope the chip lacks — exposed and playable in the browser. Claude-assisted.
• OPLL Playground (source) — an interactive, hands-on tour of the Yamaha YM2413 (OPLL) FM chip behind MSX-MUSIC: the two-operator signal path, the per-operator ADSR, the 15 ROM instruments decoded from the chip’s own patch bytes, rhythm mode, and a VGM player that drives the register file in real time — exposed and playable in the browser. Claude-assisted.
• openMSX — contributor to the MSX emulator, committing directly to the upstream project.
• C-BIOS — contributor to the open-source MSX BIOS replacement, committing directly to the upstream project.

iOS apps

• Sequential NFC (source) — NFC tag reading/writing app. Historical — pulled from the App Store.
• 10 Minutes — a daily 10-minute routine app for iOS and watchOS. Work in progress, Claude-assisted.