Courtesy of reddit r/microcontrollers: https://www.youtube.com/watch?v=...
An ATmega1284-based computer with color video, sound, built-in mechanical keyboard, and Forth interpreter in ROM. This is the first in a series of videos I'll be uploading about this project. It gives a high-level overview of the project and demonstrates its capabilities.
Specs, code, schematics, etc here: https://github.com/74hc595/Amethyst
PS NTSC video output only