Most open source Linux distributions are only partially open source, as while most packages will be built from publicly available source code, they usually come with closed source binary blobs for GPU drivers, wireless module firmware and so on.
Shedbuilt is described as “a decentralized, self-hosting GNU/Linux for Arm devices built from the latest upstream sources”, and as the developer (Auston Stewart) explains – see comments section – it does not contain any binary blob.
Eventually the distribution may support more boards, but for now, the current System 1 “Amano” release supports four Allwinner H3/H5 boards: Orange Pi PC, Orange Pi One, Orange Pi PC 2, and Libre Computer ALL-H3-CC “Tritium”. Orange Pi Lite (with WiFi) and Libre Computer AML-S905X-CC “Le Potato” images are said to be coming soon.
You can download the SD card images and access documentation on Shedbuilt.net. The Linux distribution relies on Shedmake script to automate the compilation, installation, upgrade and removal of software.
Watch Shedbuilt in action on the $10 Orange Pi One board in the demo video below showing tmux terminal, NetSurf web browser, retro gaming with dosbox, basilisk-ii desktop environment, and more.