feat(impermanence): msyds

modules/home/users/msyds/impermanence.nix

@@ -0,0 +1,33 @@
+{ config, lib, pkgs, ... }:
+
+let cfg = config.sydnix.users.msyds.impermanence;
+in {
+  options.sydnix.users.msyds.impermanence = {
+    enable = lib.mkEnableOption "top-level home files";
+  };
+
+  config = lib.mkIf cfg.enable {
+    sydnix.impermanence = {
+      enable = true;
+      directories = [
+        ".wine"
+        "Music"
+        "Pictures"
+        "Documents"
+        "Videos"
+        "Games"
+        "src" # My projects.
+        "scratch" # My playgrounds.
+        "etc" # Miscellaneous belongings.
+        "git" # Other peoples' projects.
+        # Should "org" be declared in emacs.nix?  I don't think so.  I
+        # conjecture that my org files are extremely valuable with or without
+        # Emacs.
+        "org"
+        # REVIEW: I think it may be preferable to persist a few individual files
+        # under ~/.ssh, rather than the whole directory.
+        ".ssh"
+      ];
+    }; 
+  };
+}

users/msyds/default.nix

@@ -39,6 +39,7 @@
       };
       users.msyds = {
         emacs.enable = true;
+        impermanence.enable = true;
       };
     };