home-manager: split nb out of default.nix

modules/universal/env/home-manager/default.nix

@@ -24,6 +24,7 @@ in
     ./kitty.nix
     ./librewolf.nix
     ./mpv.nix
+    ./nb.nix
     ./neovim.nix
     ./vlc.nix
     ./zsh.nix
@@ -160,15 +161,6 @@ in
       home.file."Videos/servo-incomplete".source = config.lib.file.mkOutOfStoreSymlink "/mnt/servo-media/incomplete";
       home.file."Music/servo".source = config.lib.file.mkOutOfStoreSymlink "/mnt/servo-media/Music";
 
-      # nb markdown/personal knowledge manager
-      home.file.".nb/knowledge".source = config.lib.file.mkOutOfStoreSymlink "/home/colin/dev/knowledge";
-      home.file.".nb/.current".text = "knowledge";
-      home.file.".nbrc".text = ''
-        # manage with `nb settings`
-        export NB_AUTO_SYNC=0
-      '';
-
-
       # aerc TUI mail client
       xdg.configFile."aerc/accounts.conf".source =
         config.lib.file.mkOutOfStoreSymlink sysconfig.sops.secrets.aerc_accounts.path;

modules/universal/env/home-manager/nb.nix

@@ -0,0 +1,22 @@
+# nb is a CLI-drive Personal Knowledge Manager
+# - <https://xwmx.github.io/nb/>
+#
+# it's pretty opinionated:
+# - autocommits (to git) excessively (disable-able)
+# - inserts its own index files to give deterministic names to files
+#
+# it offers a primitive web-server
+# and it offers some CLI query tools
+
+{ lib, ... }:
+{
+  home-manager.users.colin = { config, ... }: {
+    # nb markdown/personal knowledge manager
+    home.file.".nb/knowledge".source = config.lib.file.mkOutOfStoreSymlink "/home/colin/dev/knowledge";
+    home.file.".nb/.current".text = "knowledge";
+    home.file.".nbrc".text = ''
+      # manage with `nb settings`
+      export NB_AUTO_SYNC=0
+    '';
+  };
+}