SailorsLog
Logbook app for iOS. Offline-capable sync, GPS tracking, and web publishing straight from an iPad at sea.
Sailing through Code
A weather chart pulled out of shortwave noise. A star's altitude reduced to a line of position. A heartbeat read off a trace. Three signals, one problem. I build the tools and apps that process signals and noise.
I'm Luke.
Sailing
Ilma
A headless Navtex, RTTY and weather-fax receiver running unattended on a Raspberry Pi with an RTL-SDR dongle.
Sextant Navigator
Enter a sextant sight, get your line of position on a chart. Sight reduction by spherical trigonometry, entirely client-side.
Night Sky
Which of the navigational stars and planets stand above your horizon tonight, plotted for your time and position.
Productivity
KlarText
Multi-document plain-text editor for macOS with a strict no-extras policy. No syntax highlighting, no AI, no autosave.
Music Transfer
Dual-pane file manager in the Norton Commander tradition, moving music/photo/files from a Mac to an Android phone over ADB.
Eikon
A photo microblog on a single Cloudflare Worker — on-device image pipeline, blurhash placeholders, no likes or follows.
More Projects
- Quay One-click GitHub sync from the macOS menu bar. App Store · Read the post
- Pier Save, browse and rewind your work from the menu bar. App Store · Read the post
- Keel Local-first research corpus in the browser: full-text search, boolean tag filters, inline annotation, KWIC and collocates. Codeberg · Read the post
- Crossing Nautical simulation game: skipper a yacht across the North Sea traffic separation schemes at night. itch.io · Read the post
Writing
Ilma, a Navtex Decoder for the Raspberry Pi
Turning noise at 518 kHz into navigational warnings: FSK demodulation, matched filters and SITOR-B forward error correction, on a Raspberry Pi that listens unattended at sea.