DIY through-hole with split PCB : r/MechanicalKeyboards
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
GitHub - help-14/mechanical-keyboard: DIY mechanical keyboard and where to find them