diff --git a/.devcontainer/setup.sh b/.devcontainer/setup.sh
old mode 100644
new mode 100755
index 4a527de76..192d4dc21
--- a/.devcontainer/setup.sh
+++ b/.devcontainer/setup.sh
@@ -29,6 +29,8 @@ curl -fsSL https://cli.moonbitlang.com/install/unix.sh | bash
 echo 'export PATH="$HOME/.moon/bin:$PATH"' >> ~/.bashrc
 
 # Go
-curl -OL https://go.dev/dl/go1.25.5.linux-amd64.tar.gz
-tar xf go1.25.5.linux-amd64.tar.gz
-echo "export PATH=$HOME/go1.25.5.linux-amd64/bin:\$PATH" >> ~/.bashrc
+GO="go-$(uname -s | tr 'A-Z' 'a-z')-$(uname -m | sed -e 's/aarch64/arm64/' -e 's/x86_64/amd64/')-bootstrap"
+curl -OL https://github.com/dicej/go/releases/download/go1.25.5-wasi-on-idle/$GO.tbz
+tar xf $GO.tbz
+rm $GO.tbz
+echo "export PATH=$HOME/$GO/bin:\$PATH" >> ~/.bashrc
diff --git a/crates/go/src/lib.rs b/crates/go/src/lib.rs
index 19899fc82..9d9067fc0 100644
--- a/crates/go/src/lib.rs
+++ b/crates/go/src/lib.rs
@@ -1006,7 +1006,7 @@ impl Go {
                     format!(
                         "{params_pointer} := wit_runtime.Allocate({PINNER}, {size}, {align})\n{code}"
                     ),
-                    vec![params_pointer],
+                    vec![format!("uintptr({params_pointer})")],
                 )
             } else {
                 let wasm_params = go_param_names
diff --git a/crates/test/src/cpp.rs b/crates/test/src/cpp.rs
index c88b9ed5d..e2d1b7b83 100644
--- a/crates/test/src/cpp.rs
+++ b/crates/test/src/cpp.rs
@@ -51,7 +51,8 @@ impl LanguageMethods for Cpp {
             | "futures.wit"
             | "resources-with-futures.wit"
             | "resources-with-streams.wit"
-            | "streams.wit" => true,
+            | "streams.wit"
+            | "async-resource-func.wit" => true,
             _ => false,
         }
     }
diff --git a/crates/test/src/csharp.rs b/crates/test/src/csharp.rs
index 074d76696..f4fb650fb 100644
--- a/crates/test/src/csharp.rs
+++ b/crates/test/src/csharp.rs
@@ -47,6 +47,7 @@ impl LanguageMethods for Csharp {
                 | "streams.wit"
                 | "error-context.wit"
                 | "resource-fallible-constructor.wit"
+                | "async-resource-func.wit"
         )
     }
 
diff --git a/tests/codegen/async-resource-func.wit b/tests/codegen/async-resource-func.wit
new file mode 100644
index 000000000..b9704c1f2
--- /dev/null
+++ b/tests/codegen/async-resource-func.wit
@@ -0,0 +1,14 @@
+package foo:bar;
+
+world bindings {
+    import types;
+}
+
+interface types {
+    resource descriptor {
+        test: async func(
+            arg1: string,
+            arg2: list<s32>,
+        );
+    }
+}