fixup the shell so that binaries can be run as expected under it

flake.nix

@@ -21,7 +21,14 @@
         # docs: https://github.com/oxalica/rust-overlay
         coremem-wavefront = pkgs.rustPlatform.buildRustPackage {
           name = "coremem-wavefront";
-          nativeBuildInputs = [ rust-toolchain ];
+          # buildInputs = [ pkgs.vulkan-loader ];
+          buildInputs = with pkgs; [
+            pkgconfig
+            mesa
+            xlibsWrapper xorg.libXcursor xorg.libXrandr xorg.libXi
+            vulkan-tools vulkan-headers vulkan-loader vulkan-validation-layers
+          ];
+          nativeBuildInputs = [ rust-toolchain pkgs.pkgconfig pkgs.mesa pkgs.vulkan-loader ];
           src = self;
           cargoLock = {
             lockFile = ./Cargo.lock;
@@ -32,18 +39,38 @@
           # rgpu tests expectedly fail due to a lack of spirv adapter exposed to the builder.
           doCheck = false;
 
+          hardeningDisable = [ "fortify" ];
+
           # i guess the proper fix for this is to split rustc_codegen_spirv into its own
           # package (see how we're also special-casing it in cargoLock), but this suffices too.
           postInstall = ''
             cp $releaseDir/deps/librustc_codegen_spirv-*.so $out/lib/
           '';
+          LD_LIBRARY_PATH = nixpkgs.lib.makeLibraryPath [ pkgs.vulkan-loader ];
         };
       };
       defaultPackage = packages.coremem-wavefront;
 
-      devShells.default = pkgs.mkShell {
+      devShells.default = with pkgs; mkShell {
+        # buildInputs = with pkgs; [
+        #   rust-toolchain vulkan-loader
+        # ];
+
+        # hardeningDisable = [ "fortify" ];
+
+        # Workaround for https://github.com/NixOS/nixpkgs/issues/60919.
+        hardeningDisable = [ "fortify" ];
+
+        # Allow cargo to download crates.
+        SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";
+
         buildInputs = [
-          rust-toolchain
+          pkgconfig rustup xlibsWrapper libxkbcommon
+        ];
+
+        # Runtime dependencies.
+        LD_LIBRARY_PATH = with xorg; lib.makeLibraryPath [
+          libX11 libXcursor libXi libXrandr vulkan-loader
         ];
       };
     });