Web Fusée Launcher

Fusee Launcher ported to JavaScript using WebUSB.

Precautions: If there is any problem, please hold POWER for 12 seconds to restart.



  1. Put the Switch in RCM, and connect it to your device.
  2. Select either the example payload, or upload one.
  3. Press 'Do the thing!'
  4. On the consent screen that appears, select 'APX' and hit confirm.
  5. If all goes well, the payload will launch!

Random stuff:

Problem on atmosphere OS reading folder:


[e.g. hekate_ctcaer_x.x.bin, ReiNX.bin, fusee-primary.bin]