I built a free web app that drops you into real-world shell missions

I made ShellDojo (https://shell-dojo.vercel.app) - a free, browser-based trainer for shell navigation andcommand-line tooling.

The thing that matters: there's no fake terminal. Every command, flag, and byte of output is exactly what you'd see against a real system. Missions go from basic ls/cd drills up to full operations like

"find the crypto miner running on this box."

- 590+ missions, progressive difficulty

- Real tool output - no simulation shortcuts

- Runs in the browser, nothing to install

- Built on Flask + Vercel