Open-source boards designed in KiCad by paripalpp on GitHub, from 5 repositories. A board’s address here is its repository’s there.
paripalpp/RE-1
paripalpp/control_boad_2021-2
paripalpp/DevBoard_CH32V203C8T6
paripalpp/RPHAT_nucleo_expand_encoder
paripalpp/WL-3