Keyboard PCBs: How to Build Custom Mechanical Keyboards - Absolute Electronics Services
Amazon.com: YMDK GH60 64 Minila PCB Type C Fully Programmable QMK VIA for DIY Mechanical Keyboard Poker Faceu HHKB Support LED (Black QMK No Underglow) : Electronics
Amazon.com: YMDK GH60 64 Minila PCB Fully Programmable QMK VIA Underglow RGB Type C Connector for DIY Mechanical Keyboard Poker Faceu HHKB Support LED (Black QMK Underglow RGB) : Electronics
Soldering a Mechanical Keyboard PCB Using Reflow - YouTube