ref(nix): use ../.. as a source, not self

flake.nix

@@ -5,15 +5,12 @@
     inputs.flake-parts.lib.mkFlake {inherit inputs;} {
       systems = ["aarch64-darwin" "aarch64-linux" "x86_64-darwin" "x86_64-linux"];
 
-      imports = [
-        ./nix/package
-      ];
-
       perSystem = {pkgs, ...}: {
         formatter = pkgs.alejandra;
 
         imports = [
 					./nix/dependencies
+					./nix/package
         	./nix/shell
         ];
       };

nix/package/default.nix

@@ -1,14 +1,8 @@
-{self, ...}: {
-  perSystem = {
-    pkgs,
-    lib,
-    config,
-    ...
-  }: let
-    version = lib.strings.fileContents "${self}/VERSION";
-  in {
-    packages.default = pkgs.callPackage ./package.nix ({
-      inherit self version;
-    } // config.legacyPackages);
-  };
+{
+	pkgs,
+	config,
+	...
+}:
+{
+	packages.default = pkgs.callPackage ./package.nix config.legacyPackages;
 }

nix/package/package.nix

@@ -1,6 +1,4 @@
 {
-  self,
-  version,
   stdenv,
   meson,
   ninja,
@@ -9,7 +7,12 @@
   tl-optional,
   tl-expected,
   fmt,
+  lib,
 }:
+let
+	self = ../../.;
+	version = lib.strings.fileContents "${self}/VERSION";
+in
 stdenv.mkDerivation {
   pname = "dire";
   inherit version;
@@ -34,7 +37,15 @@ stdenv.mkDerivation {
     tl-expected
   ];
 
-  src = "${self}";
+	src = lib.fileset.toSource {
+		root = self;
+		fileset = lib.fileset.unions [
+			(self + /src)
+			(self + /VERSION)
+			(self + /meson.build)
+			(self + /meson_options.txt)
+		];
+	};
 
   mesonBuildType = "release";