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Build PCM package / build (push) Successful in 5s
First successful Linux field test (NixOS 26.05, Plasma 6, KiCad 10). Getting there peeled three layers the error messages misattribute: the FHS env itself (libgthread), then libs the xcb-cursor hint hides (the xcb-util family, and libzstd for libQt6Core - in zstd.out, not zstd's default output), and finally Plasma's QT_PLUGIN_PATH feeding the system Qt's platform plugins to the wheel's bundled Qt, a private-ABI mismatch that fails exactly like a missing library. New docs/NIXOS.md carries the verified buildFHSEnv wrapper, the steam-run quick test (now with env -u QT_PLUGIN_PATH), and a guide for chasing future missing sonames. README upgrades Linux from untested to works and links the doc. The in-plugin error no longer suggests programs.nix-ld: the venv python is a Nix binary, so the nix-ld shim never engages for it. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>