Small, self-contained things you can poke at in the browser — hands-on labs, everyday utilities, and live demos. No sign-up, nothing to install.
This area is experimental and educational. Everything here is built to teach an idea by letting you poke at it — a sandbox, a utility, or a frozen demo of something bigger — not to be production software. Expect rough edges, and expect the list to grow.
A safe sandbox of four fake computers — Windows, Linux, a Raspberry Pi, and WSL. Practice real SSH commands, key auth, and copying files. Break nothing.
Open labSingle-file mic & speaker tester for remote workers. Live VU meter, device pickers, plain-English troubleshooting, works offline.
Open toolLive demo of a self-hosted grow-tent dashboard: environmental sensors, stage-aware alerts, and an AI-assisted grow journal. Frozen public snapshot.
View the demo