Open source, experimental,
engineered to ship.

AI language learning at real CEFR levels — French, Spanish, Portuguese and Italian, A1 to C2. A Next.js app on Railway with invite-only accounts, and a Python CLI that runs the same vocabulary fully offline against Ollama.

The vocabulary is validated, not vibed. Every library is generated from pipe-separated sources and checked in CI — no duplicate inside a level, no word at two levels, and no library that is quietly another language. A mislabelled German set got caught that way and deleted rather than shipped.

Accounts are invite-only. Register with the shared code DY1K-2JMF-D961 — the button below fills it in for you.

A granular instrument for live performance. Eight voices, no timeline, always running — you sculpt it rather than arrange it.

No shared clock. Every voice sweeps its source on its own cycle, so give them 7.3s, 11.1s and 4.7s and they will drift against each other for hours without ever realigning.

A guitar amplifier in a browser tab. Cascaded valve preamp, push-pull power amp with sag, and a speaker cabinet. 5.3 ms round trip.

The tone stack is the real circuit. Third-order transfer function from the published analysis, component values off the schematics, and checked against the analogue response to within 0.05 dB.

A relaxing physics toss game. Launch a spinning cylinder over procedurally generated terrain and land it on the pad.

The air is alive. Gusts curl around the hills and interact with the spin you put on the disc, so reading the wind beats throwing hard.

2.5D disc golf that grew out of Driftwind — same air, same spin, a course instead of a target pad.

Low power, high spin wins. The flight model rewards finesse and wind-reading rather than arm strength.

Arcade soccer in 2.5D, built in Godot and exported to the web.

Pick-up-and-play rather than simulation — the whole thing is a browser tab and a keyboard.

A play designer for 6-on-6 flag football. Draw routes, animate them, and watch them run against simulated coverage.

Built for the sideline. iPad-first, so it works with a thumb on a cold morning rather than needing a desk.

Take a 3D model, cut it into pieces that flatten, nest those onto sheet stock, and mark the seams so it can be put back together.

It sweeps the scale. The interesting output is not one layout but the curve of waste against size — how big you should build it.

Turn a scanned or photographed boat lines plan into a table of offsets you can scale to any size.

Calibration is the whole problem. A photo of a plan is perspective-distorted, and the accuracy of every offset depends on getting that undone first.

Spec-driven generation of manufacturable 3D parts. Describe the part, get an executable spec, generate the mesh, measure it, iterate until it passes.

Test-driven development for physical parts. Wall thickness, hole inventory, mass, interference and watertightness are measured exactly and graded against the spec. The numbers are ground truth; the render is only a sanity check.

2D nesting for CNC plasma cutting. Parses the cut shapes back out of G-code, packs them onto a sheet to waste less steel, and emits new G-code panels.

It reads the toolpaths you already have. Nothing to redraw and nothing to re-export — G-code in, packed G-code out.

An operating model for running several coding agents on one real codebase. Five roles, one owner, a labelled board, and seven rules.

One agent in one checkout is a solved problem. The trouble starts at two — branches switched out from under each other, authority arriving sideways from a peer, and “tests pass” from a session that read it rather than ran it.

A visual map of any repository, built from the source rather than from a model’s impression of it, with coding agents attached at every level.

A map that can be wrong in a way you notice. The crawler extracts what the code actually says — modules, imports, resolved call edges — and every element carries a file:line you can go and check.

Netlist in, KiCad schematic, placed board and fab files out. A local, scriptable replacement for the browser EDA tools.

No cloud, no lock-in. Everything runs against kicad-cli on your own machine and the output is a real KiCad project.

Turn a technical PDF into a podcast episode you can actually listen to at the gym.

For papers that are worth knowing but not worth sitting down with.