2 layers100 × 100 mm

I8080-sbc
quasiengineer/i8080-sbc
FPGA-based single board computer to run Intel 8080 CPU (up to 3.125Mhz)
116 parts13
Boards in 2 GitHub repositories, designed in KiCad, that use the CD74HC243M96 by Texas Instruments (-55℃~+125℃ 1 160uA 2V~6V 4 7.8mA 7.8mA 74HC 7ns@5V,15pF Bidirectional Tri-State SOIC-14 Buffers, Drivers, Receivers, Transceivers ROHS). See how each wires it, with its parts, size, README and files; the CD74HC243M96’s symbol, footprint and pinout are on its own page.

quasiengineer/i8080-sbc
FPGA-based single board computer to run Intel 8080 CPU (up to 3.125Mhz)

nealpalmer/UsbJoy
USB Joystick Controller 12Digital/SmartButton, 4Analog, 1Rotary, 1NeoPixel