The $8 Linux Computer (2022)

The Ox64, a RISC-V computer, is available for $8 and features three capable RISC-V cores, but it requires UART programming and has several hurdles to overcome, including using a CH340G dongle or an RP2040 device as a serial bridge, and modifying the bflb-mcu-tool software. Users have reported crashes with the DevCube flashing tool on Ubuntu Wayland, and some have found success with using an RP2040 device and the picoprobe software. The Ox64 also lacks working ethernet, wifi, and SD-Card functionality at the time of writing.