Journal — Jorel del Portal https://joreldelportal.com/bitacora-en.html Notes from real work, unpolished. en Measure the ceiling before iterating further https://joreldelportal.com/bitacora/archpad-techo-heuristicas-en.html https://joreldelportal.com/bitacora/archpad-techo-heuristicas-en.html Thu, 01 Jan 2026 12:00:00 GMT I closed the heuristic phase of ArchPad's screenshot→mockup converter (on-device CV + OCR, zero ML in the critical path). The signal to stop wasn't fatigue: recent rounds went from fixing structure to fixing cosmetics, a I didn't hardcode the 100 floors https://joreldelportal.com/bitacora/procgen-determinista-en.html https://joreldelportal.com/bitacora/procgen-determinista-en.html Thu, 01 Jan 2026 12:00:00 GMT In a personal roguelike I chose not to author its ~100 floors by hand. A domain service generates them from a deterministic seed: it assembles data pieces and difficulty rises through curves in JSON, not code. The wink i An output-token cap is a limit, not a spend https://joreldelportal.com/bitacora/traino-output-cap-en.html https://joreldelportal.com/bitacora/traino-output-cap-en.html Thu, 01 Jan 2026 12:00:00 GMT TrainO's photo food analysis got almost 2x slower without us shipping a single deploy. The code didn't change. The model provider's behavior did: it started returning pretty-printed JSON. On multi-item plates, the respon The test wasn't flaky: it was the calendar https://joreldelportal.com/bitacora/test-flaky-calendario-en.html https://joreldelportal.com/bitacora/test-flaky-calendario-en.html Thu, 01 Jan 2026 12:00:00 GMT Two regression tests failed intermittently. The easy read was random flakiness, but in isolation they failed the same way all day: not random — deterministic per date. The generator seeds its daily PRNG from the local da A small LLM doesn't know what it doesn't know https://joreldelportal.com/bitacora/vaultos-nl-determinista-en.html https://joreldelportal.com/bitacora/vaultos-nl-determinista-en.html Thu, 01 Jan 2026 12:00:00 GMT In VaultOS, the command bar uses a local 3B model for phrases like "give me the first password I saved" or "my weakest password" — and it kept returning the same item. The cause: the model has no clock and no notion of p TrainO: from a herniated disc to an expert system https://joreldelportal.com/bitacora/traino-en.html https://joreldelportal.com/bitacora/traino-en.html Thu, 01 Jan 2026 12:00:00 GMT I've trained my whole life. Until a herniated disc stopped me and I was told I'd never train again. I didn't take it as a verdict: I took it as a problem to diagnose. I studied and broke down load, recovery and progressi VaultOS: local AI over an encrypted vault https://joreldelportal.com/bitacora/2026-06-28-en.html https://joreldelportal.com/bitacora/2026-06-28-en.html Thu, 01 Jan 2026 12:00:00 GMT VaultOS reached a functional MVP on Mac: a local-first vault where the entire database is encrypted with AES-256-GCM, the key is derived with Argon2id, and unlock can go through Touch ID.