They don't know I am reproducible

Makefile

@@ -55,7 +55,7 @@ l_wl_protocols := gen/l_wl_protocols/xdg-shell-client.h $(xdg_shell_private)
 
 out/l2/r0: src/l2/tests/r0/r0.c $(HEADERS_src_l2) $(l_wl_protocols)
 	mkdir -p out/l2
-	$(cc) $(cflags) -o $@ $< $(xdg_shell_private) -lvulkan -lm -lxkbcommon -lwayland-client
+	$(cc) $(cflags) -o $@ $< $(xdg_shell_private) -lvulkan -lm -lxkbcommon -lwayland-client -lpng
 
 out/l2/r1: src/l2/tests/r1/r1.c $(HEADERS_src_l2) $(l_wl_protocols)
 	mkdir -p out/l2

shell.nix

@@ -0,0 +1,33 @@
+{ pkgs ? import <nixpkgs> {}}:
+
+let libs = (with pkgs; [
+    fontconfig
+    freetype
+    zlib
+    sqlite
+    vulkan-headers
+    vulkan-loader
+    vulkan-validation-layers
+    libxkbcommon
+    libpng
+  ]); in
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+        pipewire
+        shaderc
+        gnumake
+        gcc
+        cmake # Does not actually needed by anything
+        pkg-config
+        wayland
+        wayland-protocols
+        wayland-scanner
+        mesa
+    ] ++ libs;
+
+    shellHook = ''
+        export VK_LAYER_PATH="${pkgs.vulkan-validation-layers}/share/vulkan/explicit_layer.d"
+        echo Day ruined.
+    '';
+}
+