From 2cb7b2709d05610361a00921aca5f5924faf6840 Mon Sep 17 00:00:00 2001
From: "Nurul Huda (Apon)" <me@nurulhudaapon.com>
Date: Tue, 2 Jun 2026 17:15:07 +0600
Subject: [PATCH] fix: wasi run step

---
 README.md         | 6 ++++++
 example/build.zig | 8 +++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2432015..6ae8587 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,12 @@ cd temporalz
 
 ```bash
 zig build run
+
+# Node.js
+zig build run -Dtarget=wasm32-freestanding
+
+# wasmtime
+zig build run -Dtarget=wasm32-wasi
 ```
 
 #### Run Tests
diff --git a/example/build.zig b/example/build.zig
index 5b93c18..b121d51 100644
--- a/example/build.zig
+++ b/example/build.zig
@@ -20,7 +20,7 @@ pub fn build(b: *std.Build) void {
     });
     exe.root_module.addImport("temporalz", temporalz.module("temporalz"));
     b.installArtifact(exe);
-    b.enable_wasmtime = true;
+    b.enable_wasmtime = true; // This doesn't work since Zig 0.17.0 release
 
     const run_step = b.step("run", "Run the app");
     switch (target.result.os.tag) {
@@ -29,6 +29,12 @@ pub fn build(b: *std.Build) void {
             run_cmd.step.dependOn(b.getInstallStep());
             run_step.dependOn(&run_cmd.step);
         },
+        .wasi => {
+            const run_cmd = b.addSystemCommand(&.{"wasmtime"});
+            run_cmd.addFileArg(exe.getEmittedBin());
+            run_cmd.step.dependOn(b.getInstallStep());
+            run_step.dependOn(&run_cmd.step);
+        },
         else => {
             const run_cmd = b.addRunArtifact(exe);
             run_cmd.step.dependOn(b.getInstallStep());