Raspberry Pi 3 & 4 – Armbian

Rock Pi 4 Plus SBC Features Rockchip OP1 Processor and eMMC Storage with Twister OS Armbian

Armbian

HiFiBerry on Rock64 howto needed - Framework and userspace feature requests - Armbian Community Forums

BTT Pi V1.2 with pre-installed Armbian, Klipper, KIAUH, Moonraker, Mainsail, and Fluidd (50USD plus shipping) : r/BIGTREETECH

Rock Pi 4C: Armbian Hirsute Running on M.2 NVME SSD

Raspberry Pi 5 – Armbian

Armbian On Raspberry Pi: The Ultimate Guide – RaspberryTips

You can't buy a Raspberry Pi right now

Rock Pi 4 Plus Model B Rockchip RK3399 SBC Single Board Computer eMMC Flash pre-Loaded with Twister OS Armbian Raspberry pi 4 (32G eMMc, with Heatsink) : Electronics