{
	lib,
	stdenvNoCC,
	callPackage,
	linkFarm,
}: let
	stdenv = stdenvNoCC;
in stdenv.mkDerivation (finalAttrs: let
	self = finalAttrs.finalPackage;
in {
	name = "dynix-modules";

	strictDeps = true;
	__structuredAttrs = true;

	outputs = [ "out" "modules" ];

	src = lib.fileset.toSource {
		root = ./modules/dynamicism;
		fileset = lib.fileset.unions [
			./modules/dynamicism
		];
	};

	phases = [ "unpackPhase" "patchPhase" "installPhase" ];

	modulesOut = "${placeholder "modules"}/share/nixos/modules/dynix";

	installPhase = lib.dedent ''
		runHook preInstall
		mkdir -p "$out"
		cp -r * "$out/"

		mkdir -p "$modules/share/nixos/modules/dynix"
		cp --reflink=auto -r "$out/"* "$modulesOut/"
	'';

	passthru.mkDevShell = {
		path,
		mkShell,
		python3Packages,
	}: let
		mkShell' = mkShell.override { inherit stdenv; };
		pyEnv = python3Packages.python.withPackages (p: [
			p.beartype
		]);
	in mkShell' {
		name = "devshell-for-${self.name}";
		packages = [ pyEnv ];
		env.PYTHONPATH = [
			"${pyEnv}/${pyEnv.sitePackages}"
			# Cursed.
			"${path}/nixos/lib/test-driver/src"
		] |> lib.concatStringsSep ":";
	};

	passthru.modulesPath = self.modules + "/share/nixos/modules";

	passthru.tests = lib.fix (callPackage ./tests {
		dynix = self;
	}).packages;

	passthru.allTests = linkFarm "dynix-all-tests" self.tests;

	meta = {
		longDescription = lib.dedent ''
			Default output contains the modules at top-level, meant for `import`.
			The `modules` output contains the modules prefixed under `/share/nixos/modules/dynix`.
		'';
		outputsToInstall = [ "modules" ];
	};
})