bbdf34ced8
- Reorganize directory structure into core/, features/, and themes/ - Colocate application Nix logic, configs, scripts, and theme overrides - Implement 'Inversion of Control' for theming: apps now pull theme-specific layouts - Update flake.nix and shared library paths to match the new structure - Document the new Feature-Centric architecture in README.md
76 lines
2.0 KiB
Nix
76 lines
2.0 KiB
Nix
{ config, lib, pkgs, inputs, ... }:
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let
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cfg = config.nomarchy.system.impermanence;
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in
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{
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imports = [
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inputs.impermanence.nixosModules.impermanence
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];
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options.nomarchy.system.impermanence = {
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enable = lib.mkEnableOption "Erase Your Darlings (Impermanence) root wipe on boot";
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};
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config = lib.mkIf cfg.enable {
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# 1. The Rollback Script: Runs in initrd before filesystems are mounted
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boot.initrd.postDeviceCommands = lib.mkAfter ''
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mkdir -p /btrfs_tmp
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mount -o subvol=/ /dev/mapper/crypted /btrfs_tmp
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if [[ -e /btrfs_tmp/@ ]]; then
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mkdir -p /btrfs_tmp/old_roots
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timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/@)" "+%Y-%m-%-d_%H:%M:%S")
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mv /btrfs_tmp/@ "/btrfs_tmp/old_roots/$timestamp"
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fi
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delete_subvolume_recursively() {
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IFS=$'\n'
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for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
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delete_subvolume_recursively "/btrfs_tmp/$i"
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done
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btrfs subvolume delete "$1"
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}
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for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
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delete_subvolume_recursively "$i"
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done
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btrfs subvolume snapshot /btrfs_tmp/root-blank /btrfs_tmp/@
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umount /btrfs_tmp
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'';
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# 2. Persistence Configuration: What survives the wipe
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environment.persistence."/persist" = {
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hideMounts = true;
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directories = [
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"/var/log"
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"/var/lib/nixos"
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"/var/lib/systemd/coredump"
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"/var/lib/NetworkManager"
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"/etc/NetworkManager/system-connections"
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"/var/lib/bluetooth"
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"/var/lib/fprint"
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"/etc/nixos"
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"/etc/ssh"
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];
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files = [
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"/etc/machine-id"
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"/etc/supergfxd.conf"
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];
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users.nomarchy = {
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directories = [
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".ssh"
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".gnupg"
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".local/share/keyrings"
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"Documents"
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"Downloads"
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"Pictures"
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"Videos"
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"Projects"
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];
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};
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};
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};
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}
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