Bring in wasm-pack directly to preserve keep control over it even more

flake.nix

@@ -17,6 +17,7 @@
             kitchenGen = (import ./nix/kitchen/default.nix);
             kitchenWasmGen = (import ./nix/kitchenWasm/default.nix);
             moduleGen = (import ./nix/kitchen/module.nix);
+            wasm-packGen = (import ./nix/wasm-pack/default.nix);
             version = "0.2.24";
         in
         flake-utils.lib.eachDefaultSystem (system:
@@ -34,6 +35,11 @@
                     rustc = rust-wasm;
                     cargo = rust-wasm;
                 };
+                # We've run into a few problems with the bundled wasm-pack in nixpkgs.
+                # Better to just control this part of our toolchain directly.
+                wasm-pack = wasm-packGen {
+                    inherit rust-wasm naersk-lib pkgs;
+                };
                 kitchenWasm = kitchenWasmGen {
                     inherit pkgs rust-wasm version;
                 };
@@ -72,6 +78,10 @@
                     type = "app";
                     program = "${kitchen}/bin/kitchen";
                 };
+                devShell = pkgs.callPackage ./nix/devShell/default.nix {
+                    inherit rust-wasm;
+                    wasm-pack-hermetic = wasm-pack;
+                };
             } 
         );
 }

nix/devShell/default.nix

@@ -1,8 +1,8 @@
 let
     lib = import ../lib/lib.nix;
 in
-{ pkgs, rust-wasm, wasm-pack }:
+{ pkgs, rust-wasm, wasm-pack-hermetic }:
 with pkgs;
 mkShell {
-    buildInputs = (lib.darwin-sdk pkgs) ++ (with pkgs; [wasm-bindgen-cli wasm-pack llvm clang rust-wasm]);
+    buildInputs = (lib.darwin-sdk pkgs) ++ (with pkgs; [wasm-bindgen-cli wasm-pack-hermetic llvm clang rust-wasm]);
 }

nix/wasm-pack/default.nix

@@ -0,0 +1,25 @@
+let
+  my-lib = import ../lib/lib.nix;
+in
+{pkgs,
+ # Because it's a workspace we need the other crates available as source
+ naersk-lib,
+ rust-wasm,
+}:
+with pkgs;
+(naersk-lib.buildPackage rec {
+    pname = "wasm-pack";
+    version = "v0.11.0";
+    buildInputs = [ rust-wasm pkgs.openssl curl];
+    # However the crate we are building has it's root in specific crate.
+    nativeBuildInputs = (my-lib.darwin-sdk pkgs) ++ [llvm clang pkg-config];
+    OPENSSL_NO_VENDOR=1;
+    doCheck = false;
+    src = fetchFromGitHub {
+      owner = "rustwasm";
+      repo = "wasm-pack";
+      rev = version;
+      sha256 = "sha256-3iwXoYnmrZsbwFUR41uI/4jnCF0OjeRO7UqVDaGJJbQ=";
+    };
+    cargoBuildOptions = opts: opts ++ ["-p" "${pname}" ];
+})