feat: add general template

templates/default/flake.nix

@@ -0,0 +1,30 @@
+{
+  description = "General purpose Flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    systems.url = "github:nix-systems/default";
+  };
+
+  outputs =
+    { nixpkgs
+    , systems
+    , ...
+    }:
+    let
+      forEachSystem = nixpkgs.lib.genAttrs (import systems);
+      pkgsFor = forEachSystem (system: import nixpkgs { inherit system; });
+    in
+    {
+      formatter = forEachSystem (system: pkgsFor.${system}.nixpkgs-fmt);
+
+      devShells = forEachSystem (system: {
+        default = pkgsFor.${system}.mkShell {
+          packages = with pkgsFor.${system}; [
+
+          ];
+        };
+      });
+
+    };
+}