I've been building Hold, a web simulator focused on instrument flight procedures — holdings, approaches, radio navigation. The demo at /fly runs a demo PHNL ILS approach: analog cockpit instruments (CDI, glideslope, DME, chronometer), a real procedure chart, altitude, and timings.

I'm not a licensed pilot — I'm a software engineer with an aviation obsession. The idea sits between full-scale sims (X-Plane, MSFS) and static explanations: something amateurs can actually fly in a browser, and that I hope becomes useful for training schools and pilot selection down the line.

Stack is TypeScript (aircraft dynamics, navigation, scoring engine) and React. The charts and nav data are real.

Keyboard to fly — would love feedback on what's confusing, what's broken, and the feeling.

https://app.hold.aero/fly