Experiments, ideas, and dead ends worth remembering.

A machine that finds problems I should work on. It found two shipped products; it also taught me the real bottleneck is elsewhere.

A psychometric interviewer you talk to. Paused on a hard voice-vs-transcript problem.

Idea to paid Chrome product in four days. Nobody paid: the ICP could not operate the delivery mechanism. Best tuition I bought all year.

A writing assistant that learns your voice through corrections. Killed with a clear head: the loop demands too much from the human.

A focus coach that talks you back to work. Cool product; it never helped me, so I shelved it.

Rebuilding my brother's ISP back-office from interviews and database archaeology. Active this month.

Teaching agents to buy things and mail physical letters: Medusa adapters, QR payments, Česká pošta API.

Four paper cuts, four tiny apps: audio presets, icon hiding, meeting audio, ambient music. "Too small to build" is a dying category.

Export X articles to Markdown for my AI. 500+ strangers turned out to want the same thing.

Harry Potter portraits of your family on iOS. Built in days; the App Store ceremony is where it paused.

16 research-backed reasoning strategies for small models, with an auto-router that picks the family per task.

GPU Ethereum address generation with Apple Metal shaders. Fast, pointless, deeply satisfying.

An MCP server for AI-powered i18n translations. Small, done, still useful.

A watcher over my shoulder, a personal automation experiment in Rust. Ongoing.

One-click open tweets in a new tab. The most scratch-an-itch thing I have ever built.

An Android ActionSheet bridge. 25 stars, still downloaded years later.

Notifications when NFT whales moved assets. Peak-cycle idea; the cycle moved first.

The ingestion layer feeding LoomBrain. The most important thing I am working on.

Domain-expiry insurance for owners who miss renewals. Never left the idea stage: the unit economics said no.

RESTful multi-submit-button forms with no JavaScript. Very 2016, still elegant.