another one :D

home/etc/neovim/plugins/barbar.nix

@@ -0,0 +1,10 @@
+{
+  programs.nixvim.plugins.barbar = {
+    enable = true;
+    keymaps = {
+      next.key = "<TAB>";
+      previous.key = "<S-TAB>";
+      close.key = "<C-w>";
+    };
+  };
+}