Very fun build, taught me a fair bit of new knowledge!
For Gigatron TTL Microcomputer Complete DIY Kit
Bought this because I was fascinated with the idea of building a computer that takes the idea of a CPU and essentially breaks it out into multiple parts and tells you what each section of the board does. Build went pretty fast, and initially I did have an issue where the system would boot for about 10-15s then all the blinkenlights would be solid and the system would hang. Debugged for a bit before trying a dedicated 5V 2A power pack and the system booted and stayed running! Just a heads up for those that run into a similar issue. After getting the system stable I played a few games on it just to make sure everything worked and everything ran just fine!