MicroHydra

MicroHydra is a simple app launcher for the Cardputer, built on MicroPython. It comes with built-in apps such as a file browser and a text editor, and new apps are plain Python files you copy to the apps folder on the board or on a microSD card. Original project by echo-lalia on GitHub, GPL-3.0. Chipnik hosts the release binaries unchanged so you can flash them from the browser.

A good first step into programming: open an app in the editor on the Cardputer itself, change a line and run it again. The project wiki explains how to write your own apps.

Firmware files come from the v2.5.1 release.