rename build.nix to default.nix

default.nix

@@ -0,0 +1,37 @@
+{
+  lib,
+  rustPlatform,
+  nix-gitignore,
+  bash,
+  makeWrapper,
+  dav1d,
+  pkg-config,
+}: let
+  version = (builtins.fromTOML (builtins.readFile ./engine/Cargo.toml)).package.version;
+  src = nix-gitignore.gitignoreSource [] ./.;
+in
+  rustPlatform.buildRustPackage rec {
+    pname = "zenyx";
+    inherit src version;
+    cargoLock.lockFile = ./Cargo.lock;
+    nativeBuildInputs = [
+      makeWrapper
+      pkg-config
+    ];
+    buildInputs = [
+      bash
+      dav1d
+    ];
+    doCheck = false;
+
+    fixupPhase = ''
+      wrapProgram $out/bin/${pname} --set PATH ${bash}/bin:\$PATH
+    '';
+
+    meta = {
+      description = "Test";
+      license = lib.licenses.mit;
+      platforms = lib.platforms.linux;
+      mainProgram = "zenyx";
+    };
+  }