diff --git a/home/homemodules/neovim/default.nix b/home/homemodules/neovim/default.nix
index c51dd2e4..0a4e9140 100644
--- a/home/homemodules/neovim/default.nix
+++ b/home/homemodules/neovim/default.nix
@@ -124,6 +124,7 @@ in {
               packages = with rPackages; [
                 languageserver
                 ggplot2
+                ggalluvial
                 plotly
                 shiny
                 readr
diff --git a/home/homemodules/neovim/extraConfigLua.lua b/home/homemodules/neovim/extraConfigLua.lua
index 8996976a..ad81a537 100644
--- a/home/homemodules/neovim/extraConfigLua.lua
+++ b/home/homemodules/neovim/extraConfigLua.lua
@@ -66,3 +66,16 @@ local rmpc =
 vim.g.toggle_rmpc = function()
 	rmpc:toggle()
 end
+
+-- Toggle FailNix UI
+local failnix = Terminal:new({
+	cmd = "cd /home/christoph/Notes/TU/MastersThesis/FailNix && nix develop --command bash -c 'perl ./scripts/menu.pl'",
+	hidden = true,
+	close_on_exit = true,
+	auto_scroll = false,
+	direction = "float",
+})
+
+vim.g.toggle_failnix = function()
+	failnix:toggle()
+end
diff --git a/home/homemodules/neovim/mappings.nix b/home/homemodules/neovim/mappings.nix
index 348e582c..94482e0c 100644
--- a/home/homemodules/neovim/mappings.nix
+++ b/home/homemodules/neovim/mappings.nix
@@ -340,6 +340,13 @@ _: let
       action = "<cmd>lua vim.g.toggle_rmpc()<cr>"; # Defined in extraConfigLua.lua
       options.desc = "Show Rmpc";
     }
+    # TODO: Something with the environment activation doesn't work
+    # {
+    #   mode = "n";
+    #   key = "<leader>.";
+    #   action = "<cmd>lua vim.g.toggle_failnix()<cr>"; # Defined in extraConfigLua.lua
+    #   options.desc = "Show FailNix";
+    # }
     {
       mode = "n";
       key = "<leader>i";