Replace disko configuration with standard NixOS fileSystems using NIXROOT and NIXBOOT labels.
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Co-Authored-By: opencode <noreply@opencode.ai>
Move system.primaryUser and stateVersion to Darwin profile as they don't exist on NixOS.
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Co-Authored-By: opencode <noreply@opencode.ai>
Remove Darwin-specific gc.interval from base profile and add it to Darwin profile to fix NixOS compatibility.
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Co-Authored-By: opencode <noreply@opencode.ai>
Override Darwin-style gc.interval with NixOS systemd format to resolve configuration error.
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Co-Authored-By: opencode <noreply@opencode.ai>
