Developers

Make apps for the X3

eOctavo apps are small Lua scripts. Write one here, run it on a simulated X3 right in your browser, then copy it onto your SD card or send it to the Store.

Read the guide Make an art pack Submit an app

Simulator

Runs an app the way the X3 does: the same Lua 5.4, sandbox, limits and screen layout. Fonts are close to the X3's but not exact, so check tight layouts on a device. Everything stays in your browser; nothing you write is uploaded.

Keys: arrows, Enter = OK, Esc or Backspace = BACK.

App Open a Store app Or files from your computer The .lua, plus its .art if it has one (pick both at once).

Now: nothing ·

Limits

Data
Steps
Screen entries
Script
Tick

Log

Code

The open app's script. Change it and press Run (or Ctrl+Enter) to restart the app with your version. print() output shows in the log.

Put it on your X3

Download your .lua (and its .art, if it has one).
Copy them into the apps folder on the X3's SD card.
Go back to the home screen: the app appears in the folder named by its --!category line.

Happy with it? Send it to the Store so every X3 can install it.