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Aug 26, 2026Drop the vendor station ID: licensing as a data-model constraint
TL;DR — @sailingnaturali/station-corrections 2.0.0 deleted providerId, the one field in a public MIT...
Aug 26, 202611 min read0 reactions0 comments
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Aug 25, 2026A tidal gate with no current station: deriving slack from a tide port
TL;DR — Some tidal gates have no current station at all: the published knowledge is "slack is the...
Aug 25, 202611 min read0 reactions0 comments
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Aug 21, 2026Two alert lanes: the siren shouldn't depend on an LLM
Don't put a model in the path of the alarm that matters most. Split the notification router in two:...
Aug 21, 202610 min read0 reactions0 comments
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Aug 16, 2026SignalK's two token classes: why plugin routes 401 your device token
TL;DR — SignalK server has two token classes with different powers. A device token (Security →...
Aug 16, 20268 min read0 reactions0 comments
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Aug 13, 2026Tide predictions read higher than the tables? Suspect the datum
TL;DR — If a harmonic tide prediction disagrees with the official tide tables by a constant offset...
Aug 13, 20267 min read0 reactions0 comments
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Aug 12, 2026Shipping Canadian CHS station data without redistributing the licensed file
TL;DR — US tide/current station data (NOAA) is public domain and you can bundle it into anything....
Aug 12, 202611 min read0 reactions0 comments
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Aug 4, 2026The NMEA 2000 paradox has an open-source answer
Galvanic Works published The NMEA 2000 Paradox — a sharp problem statement about why boats drowning...
Aug 4, 20265 min read0 reactions0 comments
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Aug 1, 2026A persistent-queue HTTP reporter for distress traffic over flaky internet
TL;DR — Don't fetch()-and-forget safety-relevant reports over marine internet. signalk-distress-core...
Aug 1, 202611 min read0 reactions0 comments
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Jul 31, 2026Offline tidal currents from harmonic constituents — and when not to trust them
TL;DR — signalk-currents v0.7.0 keeps publishing tidal-current predictions when the boat loses...
Jul 31, 202610 min read0 reactions0 comments
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Jul 26, 2026Where a received distress call belongs in the SignalK data model
TL;DR — a distress alert heard from another vessel is not your boat's own alarm state, so don't...
Jul 26, 20268 min read0 reactions0 comments
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Jul 24, 2026When AI agents write the ship's log, record who wrote what
TL;DR — When humans, vessel automation, and an AI agent all write the same logbook, you need...
Jul 24, 20268 min read1 reactions0 comments
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Jul 29, 2026Running OpenClaw on a Raspberry Pi alongside SignalK
Running OpenClaw — a self-hosted, multi-channel agent gateway — on a Raspberry Pi 5 next to SignalK,...
Jul 29, 20268 min read0 reactions0 comments