9 things I built and am actually happy with. More sit on GitHub.
A ladder-logic puzzle game: program a Mitsubishi-style PLC to solve motor-control problems, then get graded by an engine that runs identically on client and server.
Daily language practice that adapts to what you keep getting wrong, with stories, streaks and an honest progress model.
An autonomous agent with persistent memory, run outside any chat UI, with a console to approve or reject what it wants to do next.
Write your repository logic once, pick your database later. SQLite, Postgres and MySQL adapters that provably behave identically.
A personal job-application tracker. Record what you applied for, where and when; find it again by meaning rather than exact wording
A disk reclamation tool for Windows. It finds space you can actually get back, tells you what removing it will cost you, and keeps a record of everything it removed.
A WebAuthn / FIDO2 passkey demo built around a hardware security key, with TOTP and recovery-code fallbacks and a live ceremony debug panel.
A web-based Markdown viewer and editor that stays out of your way.
Open .docx and .xlsx in the browser. Files are parsed and rendered entirely client-side and never leave your machine.