Re-add and use build-configs.yaml

sculpin/flake.nix

@@ -1,20 +1,20 @@
 {
-  inputs = {
-    devshell.inputs.nixpkgs.follows = "nixpkgs";
-    devshell.url = "github:numtide/devshell";
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
-    flake-parts.url = "github:hercules-ci/flake-parts";
-
-    import-tree.url = "github:vic/import-tree";
-
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-  };
-
-  outputs =
-    inputs:
-    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
-      imports = [
-        (inputs.import-tree ./flake-modules)
-      ];
+  outputs = inputs:
+    let
+      system = "x86_64-linux";
+      pkgs = import inputs.nixpkgs { inherit system; };
+    in
+    {
+      devShells.${system}.default =
+        with pkgs;
+        mkShell {
+          buildInputs = [
+            nodePackages.browser-sync
+            php
+            phpPackages.composer
+          ];
+        };
     };
 }