Celestine
Custom TKL PCB for NMB Hi-Tek 725 (Space Invader) switches
Install / Use
/learn @ai03-2725/CelestineREADME
Celestine
A Hi-Tek 725 TKL PCB
In light of recent claims that I am 100% liable for any of my open source PCBs, I am adding this disclaimer.
I provide these PCBs as a reference for designing keyboard PCBs. Using them within your projects will require a will to do research of one's own and to learn the workings of them, potentially fixing issues if they exist.
I provide these PCBs without liability and without any guarantees regarding functionality, as expressed in the MIT license under which all of these PCBs are licensed.
This project aims to revive the use of NMB/Hi-Tek 725 series switches, commonly known as "Space Invaders".
Massive credits go to Engicoder, mcmaxmcmc, and many others for helping me along the way with measurements of existing boards and switches.
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Security Score
Audited on Jan 17, 2026
