
Passive rpi hub75-adapter
hzeller/rpi-rgb-led-matrix
Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO

Allows you to really pile on the SAOs
Sao expander is an open-source printed circuit board by SurrealityLabs, from the SurrealityLabs/sao-expander repository on GitHub. It is a 2-layer board with 2 parts on 8 nets.
Allows you to really pile on the SAOs
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_02x03_Odd_Even | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J1, J2 |

hzeller/rpi-rgb-led-matrix
Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO


adamws/kicad-kbplacer
KiCad plugin for automatic keyboard's key placement and routing

Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.

NVNTLabs/switch2-SDEX2M2
Micro SD Express to M.2 NVME Adapter for Nintendo Switch 2

BlueSCSI/BlueSCSI-v2
BlueSCSI v2/Ultra - an open source, open hardware, SCSI emulator using the Pi Pico PR2040 and Pico 2 RP2350

ohmtech-rdi/eurorack-blocks
Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust

2 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the SurrealityLabs/sao-expander repository on GitHub, at the commit this page was made from: the board is sao-expander.kicad_pcb and its schematic sao-expander.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask SurrealityLabs before reusing the design.