Add helix to home-manager

users/pedro/home-configuration/helix.nix

@@ -0,0 +1,37 @@
+{pkgs, ...}: {
+  programs.helix = {
+    enable = true;
+    defaultEditor = true;
+    languages = {
+      language-server = {
+        pyright = {
+          command = "${pkgs.pyright}/bin/pyright-langserver";
+          args = ["--stdio"];
+          config = {};
+        };
+
+        nil = {command = "${pkgs.nil}/bin/nil";};
+      };
+
+      language = [
+        {
+          name = "nix";
+          language-servers = ["nil"];
+          auto-format = true;
+          formatter.command = "${pkgs.nixfmt-rfc-style}/bin/nixfmt";
+        }
+
+        {
+          name = "python";
+          language-servers = ["pyright"];
+          auto-format = true;
+          formatter = {
+            command = "${pkgs.black}/bin/black";
+            args = ["--quiet" "-"];
+          };
+        }
+      ];
+    };
+    settings = {};
+  };
+}