wip(rpi4): park the Pi 4 sketch — superseded by the Pi 5 machinery in #87

Never-committed working tree state found in the dev worktree: a Pi 4 hardware
module, a setup walkthrough, an upboard-serial refactor, and flake wiring that
does not evaluate (aarch64 packages block nested inside packages.x86_64-linux;
pkgs-aarch64 built with `inherit aarch64` instead of `system`, so it is really
x86; references a nixosConfigurations.rpi4-installed that is never defined).

Parked verbatim for reference. The real Pi 4 target is rebuilt on top of #87's
mkPiInstalled/mkPiImage shape in feat/rpi4-target.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013A6683cCHnQxFUosx1krY4
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Padreug 2026-09-20 11:17:41 +02:00
commit 7e59951fcc
7 changed files with 533 additions and 4 deletions

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use flake