In Part 1 we created our keyboard's layout by leveraging points, in Part 2 we gave our board an outline, in Part 3 we discussed microcontrollers and created the basis for our PCB, and in Part 4 we imported external footprints and designed a keyboard case. It served as a general survey of various popular CAD softwares at the time, and walked readers through creating a KiCAD schematic (something we didn't need to do thanks to Ergogen creating our nets), designing a footprint from scratch (useful, but something that doesn't come up as often in the Ergogen community), and finally routing everything together (the last step we need to do here today). You can also select the "Route Tracks" tool from the right side of KiCAD and click the pin or pad you want to start routing from.