Open hardware projects tagged altium on BoardRepo. View schematics and PCBs in the browser and download the sources.
An upgraded Adafruit Macropad with easier macro-layer-switching using additional NeoKey buttons (and OLED display). Also includes keyboard-layout switching and dimming as well as a lot of macro-definitions.
MNT Reform Layerscape LS1028A SoM
ESP8266 IoT three channel dimmer
Blueshift Robotics Motherboard Design Files