菜单
Audit NixOS impermanence configuration — find files on root filesystem not covered by persistence declarations. Use when the user wants to check for untracked files, audit impermanence, or runs /impermanence-audit.
| name | impermanence-audit |
| description | Audit NixOS impermanence configuration — find files on root filesystem not covered by persistence declarations. Use when the user wants to check for untracked files, audit impermanence, or runs /impermanence-audit. |
| allowed-tools | Bash(sudo:*), Bash(bash:*), Bash(nix:*), Read, Edit, Glob, Grep |
Scan the root filesystem and identify files not covered by NixOS impermanence persistence declarations. These files would be lost on reboot.
sudo impermanence-audit --hostname stella
Options:
--hostname NAME — NixOS host config to evaluate (default: $(hostname))--user NAME — user home to check (default: current user)--ignore FILE — extra ignore patterns file--json — machine-readable outputReview the untracked files and categorize them:
| Category | Action |
|---|---|
| Application state/config | Add to the appropriate feature module's environment.persistence |
| Transient/cache files | Safe to ignore — add to ~/.config/impermanence-audit/ignore if noisy |
| System service data | Add to the system module (usually features/system/boot.nix) |
| Unknown | Investigate what created the file before deciding |
Persistence paths are declared across feature modules. Match the file to its feature:
| Path pattern | Module file |
|---|---|
Desktop app configs (~/.config/app, ~/.local/share/app) | flake-modules/modules/features/desktop/common.nix |
Dev tools (~/.kube, .local/share/direnv, etc.) | flake-modules/modules/features/devpack/tools.nix |
Editor data (~/.local/share/nvim) | flake-modules/modules/features/devpack/editor.nix |
System services (/var/lib/*, /etc/*) | flake-modules/modules/features/system/boot.nix |
| KDE state | flake-modules/modules/features/desktop/kde.nix |
| Steam/gaming | flake-modules/modules/features/desktop/steam.nix |
| Browser profiles | flake-modules/modules/features/desktop/zen.nix |
The pattern for adding a user directory to a feature module:
# Inside the module's config block, guarded by impermanence check:
config = lib.mkIf (cfg.enable && config.my.system.impermanence.enable) {
environment.persistence."/persistent/system".users."efficacy38" = {
directories = [
".config/new-app"
".local/share/new-app"
];
};
};
For system-level paths:
environment.persistence."/persistent/system" = {
directories = [
"/var/lib/new-service"
];
};
After adding persistence declarations:
nh os switch --hostname=stella
Then re-run the audit to confirm the paths are now covered.
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