nix: Build using nixpkgs package

default.nix

@@ -1,14 +1,25 @@
-(
-  import
-  (
-    let
-      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
-    in
-      fetchTarball {
-        url = lock.nodes.flake-compat.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-        sha256 = lock.nodes.flake-compat.locked.narHash;
-      }
-  )
-  {src = ./.;}
-)
-.defaultNix
+{
+  system ? builtins.currentSystem,
+}:
+let
+  lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+
+  root = lock.nodes.${lock.root};
+  inherit (lock.nodes.${root.inputs.flake-compat}.locked)
+    owner
+    repo
+    rev
+    narHash
+    ;
+
+  flake-compat = fetchTarball {
+    url = "https://github.com/${owner}/${repo}/archive/${rev}.tar.gz";
+    sha256 = narHash;
+  };
+
+  flake = import flake-compat {
+    inherit system;
+    src = ./.;
+  };
+in
+flake.defaultNix

flake.nix

@@ -7,17 +7,11 @@
       url = "github:oxalica/rust-overlay";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    crane.url = "github:ipetkov/crane";
-    flake-compat.url = "github:edolstra/flake-compat";
+    flake-compat.url = "github:nix-community/flake-compat";
   };
 
   outputs =
-    {
-      nixpkgs,
-      rust-overlay,
-      crane,
-      ...
-    }:
+    { nixpkgs, ... }@inputs:
     let
       systems = [
         "x86_64-linux"
@@ -27,14 +21,13 @@
       ];
 
       overlays = {
-        rust-overlay = rust-overlay.overlays.default;
+        rust-overlay = inputs.rust-overlay.overlays.default;
         rust-toolchain = final: prev: {
           rustToolchain = final.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
         };
         zed-editor = final: prev: {
           zed-editor = final.callPackage ./nix/build.nix {
-            crane = crane.mkLib final;
-            rustToolchain = final.rustToolchain;
+            inherit (import nixpkgs { inherit (final) system; }) zed-editor;
           };
         };
       };