Gemini PDA Mainline

Upstream-first Linux enablement for the Planet Computers Gemini PDA.

[!CAUTION] v1 ships as it is, and you use it entirely at your own risk. It can corrupt your data, cost you your recovery path or damage your device. It has had limited testing, on one unit. There is no warranty (MIT licence) and no promise of support.

[!WARNING] This is an early hardware-enablement project, not a custom ROM or a daily-driver image. An incorrect image, partition write, clock, regulator, or memory-map change can corrupt data or damage hardware. Preserve a known-good recovery path, back up device-specific data, and never experiment on the preloader, NVRAM, or partition table.

Mission

Make the Gemini PDA a first-class mainline Linux device: bootable with an ordinary upstream-derived arm64 kernel, described by upstream Device Tree, usable through standard Linux subsystems, and maintainable without a permanent vendor-kernel fork.

The intended end state is distribution-owned kernel updates, not a repository-owned ROM:

MediaTek BootROM
  -> retained low-level firmware while…