diff --git a/init.lua b/init.lua
index 33a4ed5..90e718f 100644
--- a/init.lua
+++ b/init.lua
@@ -70,20 +70,18 @@ end
 vim.cmd.colorscheme "catppuccin"
 
 function set_theme_according_to_darkman()
-  if vim.fn.executable("darkman") == 1 then
-    local obj = vim.system({ 'darkman', 'get' }, { text = true }):wait()
-    if obj.code == 0 then
-      local theme = "light"
-      if obj.stdout == "dark\n" then
-        theme = "dark"
-      end
-      if obj.stdout == "light\n" then
-        theme = "light"
-      end
-
-      opt.background = theme
-      vim.api.nvim_exec_autocmds("ColorScheme", {})
+  local obj = vim.system({ 'darkman', 'get' }, { text = true }):wait()
+  if obj.code == 0 then
+    local theme = "light"
+    if obj.stdout == "dark\n" then
+      theme = "dark"
     end
+    if obj.stdout == "light\n" then
+      theme = "light"
+    end
+
+    opt.background = theme
+    vim.api.nvim_exec_autocmds("ColorScheme", {})
   end
 end
 
diff --git a/snippets/nix.snippets b/snippets/nix.snippets
index 198f9e7..5a37be1 100644
--- a/snippets/nix.snippets
+++ b/snippets/nix.snippets
@@ -33,7 +33,7 @@ snippet flake
         let
           pkgs = nixpkgs.legacyPackages.\${system};
         in
-        rec {
+        {
           packages = rec {
             $1 = pkgs.stdenv.mkDerivation {
               name = "$1";
@@ -43,12 +43,6 @@ snippet flake
             };
             default = $1;
           };
-          devShells.default = {
-            inputsFrom = [ packages.default ];
-            packages = with pkgs; [
-              $3
-            ];
-          };
         }
       );
   }
diff --git a/snippets/python.snippets b/snippets/python.snippets
deleted file mode 100644
index 13c5f33..0000000
--- a/snippets/python.snippets
+++ /dev/null
@@ -1,2 +0,0 @@
-snippet exception Exception statement
-  Exception(f"$1")