Field note
What a thirty-second network window is worth
A courier's phone was in range of a tower for under a minute. We walk through exactly which bytes we chose to move, and why progress logs beat media every time.
Dispatches
Notes from offline.
Engineering write-ups and field notes. Slow to update — often because the people who'd write them are in a place with no signal.
Engineering
A progress log that never needs a referee
How the conflict-free record lets two offline devices agree about a learner without a server, and the one edge case that took us a year to trust.
Hardware
Designing for the repair, not the sale
Every common failure on the classroom device now has a field fix. Here's the teardown discipline that got us there, and why warranty is the wrong metric offline.
Curriculum
One format for the screen and the printout
Authoring lessons so the same source renders on a low-power display and a one-page fallback — and why that constraint made the packs better.
Field note
The classroom that seeded itself
One tablet reached town, came back, and seeded twenty-two others over the local mesh before lunch. Mesh distribution, observed in the wild.
Power
Budgeting a lesson against a solar panel
What changes when your compute budget is a cloudy afternoon. How display, sync, and scoring share a power envelope with no wall socket.