register works

Cargo.toml

@@ -6,7 +6,10 @@ members = [
   "packages/types",
   "packages/utils",
 ]
-exclude = ["nodes/max/plantarium/.template"]
+exclude = [
+    "nodes/max/plantarium/.template",
+    "nodes/max/plantarium/zig"
+]
 
 [profile.release]
 lto = true

flake.nix

@@ -4,7 +4,7 @@
   };
 
   outputs = {nixpkgs, ...}: let
-    systems = ["aarch64-darwin" "x86_64-linux"];
+    systems = ["aarch64-darwin" "x86_64-darwin" "aarch64-linux" "x86_64-linux"];
     eachSystem = function:
       nixpkgs.lib.genAttrs systems (system:
         function {
@@ -19,14 +19,15 @@
           pkgs.nodejs_24
           pkgs.pnpm_10
 
-          # wasm/rust stuff
+          # wasm stuff
           pkgs.rustc
           pkgs.cargo
           pkgs.rust-analyzer
           pkgs.rustfmt
-          pkgs.wasm-bindgen-cli
+          pkgs.binaryen
-          pkgs.wasm-pack
           pkgs.lld
+          pkgs.zig
+          pkgs.zls
 
           # frontend
           pkgs.vscode-langservers-extracted
@@ -35,6 +36,10 @@
           pkgs.tailwindcss-language-server
           pkgs.svelte-language-server
         ];
+
+        shellHook = ''
+          unset ZIG_GLOBAL_CACHE_DIR
+        '';
       };
     });
   };

nodes/max/plantarium/zig/.gitignore

@@ -0,0 +1,2 @@
+.zig-cache/
+zig-out/

nodes/max/plantarium/zig/build.zig

@@ -0,0 +1,19 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.resolveTargetQuery(.{ .os_tag = .freestanding, .abi = .none, .cpu_arch = .wasm32 });
+    const release = b.option(bool, "release", "To build a wasm release") orelse false;
+
+    const exe = b.addExecutable(.{
+        .name = "zig",
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = if (release) .ReleaseSmall else .Debug,
+        }),
+    });
+    exe.rdynamic = true;
+    exe.entry = .disabled;
+
+    b.installArtifact(exe);
+}

nodes/max/plantarium/zig/build.zig.zon

@@ -0,0 +1,81 @@
+.{
+    // This is the default name used by packages depending on this one. For
+    // example, when a user runs `zig fetch --save <url>`, this field is used
+    // as the key in the `dependencies` table. Although the user can choose a
+    // different name, most users will stick with this provided value.
+    //
+    // It is redundant to include "zig" in this name because it is already
+    // within the Zig package namespace.
+    .name = .math,
+    // This is a [Semantic Version](https://semver.org/).
+    // In a future version of Zig it will be used for package deduplication.
+    .version = "0.0.0",
+    // Together with name, this represents a globally unique package
+    // identifier. This field is generated by the Zig toolchain when the
+    // package is first created, and then *never changes*. This allows
+    // unambiguous detection of one package being an updated version of
+    // another.
+    //
+    // When forking a Zig project, this id should be regenerated (delete the
+    // field and run `zig build`) if the upstream project is still maintained.
+    // Otherwise, the fork is *hostile*, attempting to take control over the
+    // original project's identity. Thus it is recommended to leave the comment
+    // on the following line intact, so that it shows up in code reviews that
+    // modify the field.
+    .fingerprint = 0xa927044d8d610b01, // Changing this has security and trust implications.
+    // Tracks the earliest Zig version that the package considers to be a
+    // supported use case.
+    .minimum_zig_version = "0.15.2",
+    // This field is optional.
+    // Each dependency must either provide a `url` and `hash`, or a `path`.
+    // `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
+    // Once all dependencies are fetched, `zig build` no longer requires
+    // internet connectivity.
+    .dependencies = .{
+        // See `zig fetch --save <url>` for a command-line interface for adding dependencies.
+        //.example = .{
+        //    // When updating this field to a new URL, be sure to delete the corresponding
+        //    // `hash`, otherwise you are communicating that you expect to find the old hash at
+        //    // the new URL. If the contents of a URL change this will result in a hash mismatch
+        //    // which will prevent zig from using it.
+        //    .url = "https://example.com/foo.tar.gz",
+        //
+        //    // This is computed from the file contents of the directory of files that is
+        //    // obtained after fetching `url` and applying the inclusion rules given by
+        //    // `paths`.
+        //    //
+        //    // This field is the source of truth; packages do not come from a `url`; they
+        //    // come from a `hash`. `url` is just one of many possible mirrors for how to
+        //    // obtain a package matching this `hash`.
+        //    //
+        //    // Uses the [multihash](https://multiformats.io/multihash/) format.
+        //    .hash = "...",
+        //
+        //    // When this is provided, the package is found in a directory relative to the
+        //    // build root. In this case the package's hash is irrelevant and therefore not
+        //    // computed. This field and `url` are mutually exclusive.
+        //    .path = "foo",
+        //
+        //    // When this is set to `true`, a package is declared to be lazily
+        //    // fetched. This makes the dependency only get fetched if it is
+        //    // actually used.
+        //    .lazy = false,
+        //},
+    },
+    // Specifies the set of files and directories that are included in this package.
+    // Only files and directories listed here are included in the `hash` that
+    // is computed for this package. Only files listed here will remain on disk
+    // when using the zig package manager. As a rule of thumb, one should list
+    // files required for compilation plus any license(s).
+    // Paths are relative to the build root. Use the empty string (`""`) to refer to
+    // the build root itself.
+    // A directory listed here means that all files within, recursively, are included.
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+        // For example...
+        //"LICENSE",
+        //"README.md",
+    },
+}

nodes/max/plantarium/zig/src/input.json

@@ -0,0 +1,27 @@
+{
+    "id": "max/nodarium/zig",
+    "outputs": [
+        "float"
+    ],
+    "inputs": {
+        "op_type": {
+            "label": "type",
+            "type": "select",
+            "options": [
+                "add",
+                "subtract",
+                "multiply",
+                "divide"
+            ],
+            "internal": true
+        },
+        "a": {
+            "type": "float",
+            "value": 2
+        },
+        "b": {
+            "type": "float",
+            "value": 2
+        }
+    }
+}

nodes/max/plantarium/zig/src/main.zig

@@ -0,0 +1,29 @@
+const std = @import("std");
+
+const def = @embedFile("input.json");
+
+export fn execute(ptr: *anyopaque, len: c_int) c_int {
+    _ = ptr; // autofix
+    _ = len; // autofix
+    return 0;
+}
+
+export fn __alloc(len: c_int) ?*anyopaque {
+    if (len < 0) return null;
+    const mem = std.heap.wasm_allocator.alloc(u8, @intCast(len)) catch return null;
+    return mem.ptr;
+}
+
+export fn __free(ptr: *anyopaque, len: c_int) void {
+    if (len < 1) return;
+    const mem: [*]u8 = @ptrCast(@alignCast(ptr));
+    std.heap.wasm_allocator.free(mem[0..@intCast(len)]);
+}
+
+export fn getDefinitionPtr() *const anyopaque {
+    return def.ptr;
+}
+
+export fn getDefinitionLen() usize {
+    return def.len;
+}

packages/utils/src/wasm-wrapper.ts

@@ -3,6 +3,8 @@ interface NodariumExports extends WebAssembly.Exports {
   execute: (ptr: number, len: number) => number;
   __free: (ptr: number, len: number) => void;
   __alloc: (len: number) => number;
+  getDefinitionPtr: () => number;
+  getDefinitionLen: () => number;
 }
 
 export function createWasmWrapper(buffer: ArrayBuffer) {
@@ -19,8 +21,8 @@ export function createWasmWrapper(buffer: ArrayBuffer) {
         if (!exports) return;
         const view = new Uint8Array(exports.memory.buffer, ptr, len);
         console.log("RUST:", new TextDecoder().decode(view));
-      }
+      },
-    }
+    },
   };
 
   const module = new WebAssembly.Module(buffer);
@@ -43,12 +45,22 @@ export function createWasmWrapper(buffer: ArrayBuffer) {
   }
 
   function get_definition() {
-    const sections = WebAssembly.Module.customSections(module, "nodarium_definition");
-    if (sections.length > 0) {
     const decoder = new TextDecoder();
+    const sections = WebAssembly.Module.customSections(
+      module,
+      "nodarium_definition",
+    );
+    if (sections.length > 0) {
       const jsonString = decoder.decode(sections[0]);
       return JSON.parse(jsonString);
     }
+
+    const ptr = exports.getDefinitionPtr();
+    const len = exports.getDefinitionLen();
+
+    const view = new Uint8Array(exports.memory.buffer, ptr, len);
+    const jsonString = decoder.decode(view);
+    return JSON.parse(jsonString);
   }
 
   return { execute, get_definition };