1 files changed, 49 insertions, 0 deletions
diff --git a/modules/nixos/system/impermanence/default.nix b/modules/nixos/system/impermanence/default.nix
new file mode 100644
index 0000000..b82579b
--- /dev/null
+++ b/modules/nixos/system/impermanence/default.nix
@@ -0,0 +1,49 @@
+{ options, config, lib, namespace, ... }:
+
+with lib; with lib.${namespace}; let
+  cfg = config.${namespace}.system.impermanence;
+in {
+  options.${namespace}.system.impermanence = with types; {
+    enable = mkEnableOption "root impermanence";
+
+    location = mkOption {
+      type = str;
+      default = "/persist/system";
+    };
+
+    #TODO: multi-user support
+    home = {
+      enable = mkEnableOption "home impermanence";
+
+      location = mkOption {
+        type = str;
+        default = "/persist/home";
+      };
+
+      secure.location = mkOption {
+        type = str;
+        default = "/persist/secure/home";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    programs.fuse.userAllowOther = true;
+
+    environment.persistence.${cfg.location} = {
+      hideMounts = true;
+
+      directories = [
+        "/etc/nixos"
+        "/var/log"
+        "/var/lib/nixos"
+        "/var/lib/systemd/coredump"
+        # "/var/lib/bluetooth"
+      ];
+      
+      files = [
+        "/etc/machine-id"
+      ];
+    };
+  };
+}