feat: Persist some projects for browsing

users/crumb/default.nix

@@ -19,6 +19,8 @@
     ];
 
     xdg.enable = true;
+    # Not yet in my version of HM.
+    # xdg.preferXdgDirectories = true;
 
     sydnix = {
       gpg.enable = true;

users/crumb/files.nix

@@ -36,6 +36,8 @@ in lib.mkMerge [
         # 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"
         {
           directory = ".local/share/Steam";
@@ -46,6 +48,18 @@ in lib.mkMerge [
     };
   }
 
+  {
+    # ~/git — other peoples' code
+    systemd.user.tmpfiles.rules = [
+      "v ${config.home.homeDirectory}/git 755 ${config.home.username} users - -"
+    ];
+
+    sydnix.impermanence.directories = [
+      "git/doomemacs"
+      "git/publish-org-roam-ui"
+    ];
+  }
+
   {
     ### Syncthing