Add a dev flake

template/dogfood/.envrc

@@ -0,0 +1 @@
+use flake ./dev --no-write-lock-file --show-trace

template/dogfood/.gitignore

@@ -0,0 +1 @@
+/.direnv/

template/dogfood/dev/flake.nix

@@ -0,0 +1,11 @@
+{
+  description = "The dev flake to set up the devShell. It dogfoods modules provided by the public flake";
+
+  inputs = {
+    public.url = "path:..";
+    nixpkgs.follows = "public/nixpkgs";
+    flake-parts.follows = "public/flake-parts";
+  };
+
+  outputs = { public, flake-parts, nixpkgs, self, ... }@inputs: flake-parts.lib.mkFlake { inherit inputs; } public.flakeModules.dev;
+}

template/dogfood/flake.nix

@@ -5,14 +5,17 @@
     nixpkgs_22_11.url = "github:NixOS/nixpkgs/nixos-22.11";
   };
 
-  outputs = { flake-parts, self, ... }@inputs: let
-    bootstrap = 
-      flake-parts.lib.mkFlake
-        {
-          inherit inputs;
-          moduleLocation = ./flake.nix;
-        }
-        ./modules/dogfood.nix;
-  in
-    flake-parts.lib.mkFlake { inherit inputs; } bootstrap.flakeModules.dogfood;
+  outputs = { flake-parts, self, nixpkgs, ... }@inputs:
+    flake-parts.lib.mkFlake
+      {
+        inherit inputs;
+        moduleLocation = ./flake.nix;
+      }
+      {
+        imports = [
+          ./modules/anotherFlakeModule.nix
+          ./modules/dev.nix
+          ./modules/hello.nix
+        ];
+      };
 }

template/dogfood/modules/dev.nix

@@ -0,0 +1,20 @@
+{flake-parts-lib, lib, inputs, ...}@topLevel: {
+  imports = [
+    ./hello.nix
+    inputs.flake-parts.flakeModules.flakeModules
+  ];
+  flake.flakeModules.dev = {
+    config.systems = [ "x86_64-linux" "aarch64-darwin" ];
+    imports = [
+      topLevel.config.flake.flakeModules.hello
+    ];
+    options.perSystem = flake-parts-lib.mkPerSystemOption ({pkgs, ...}@perSystem: {
+      devShells.default = pkgs.mkShell {
+        buildInputs = [ perSystem.config.packages.hello_22_11 ];
+        shellHook = ''
+          hello
+        '';
+      };
+    });
+  };
+}

template/dogfood/modules/dogfood.nix

@@ -1,23 +0,0 @@
-{flake-parts-lib, lib, inputs, ...}@topLevel: {
-  imports = [
-    ./hello.nix
-    inputs.flake-parts.flakeModules.flakeModules
-  ];
-  flake.flakeModules.dogfood = {
-    config.systems = [ "x86_64-linux" "aarch64-darwin" ];
-    imports = [
-      topLevel.config.flake.flakeModules.hello
-
-      # Expose flake modules
-      ./dogfood.nix
-      ./hello.nix
-      ./anotherFlakeModule.nix
-    ];
-    options.perSystem = flake-parts-lib.mkPerSystemOption (perSystem: {
-      apps.default = {
-        type = "app";
-        program = "${perSystem.config.packages.hello_22_11}/bin/hello";
-      };
-    });
-  };
-}