diff --git a/README.md b/README.md
index febe0492..38975e83 100644
--- a/README.md
+++ b/README.md
@@ -74,8 +74,9 @@ https://github.com/loro-dev/loro/assets/18425020/ec2d20a3-3d8c-4483-a601-b200243
 5. **Rust Target**: Add with `rustup target add wasm32-unknown-unknown`.
 6. **wasm-bindgen-cli**: Install version 0.2.86 via `cargo install wasm-bindgen-cli --version 0.2.86`.
 6. **wasm-opt**: Install using `cargo install wasm-opt --locked`.
-7. **cargo-nextest**: Install using `cargo install cargo-nextest --locked`.
-8. **cargo-fuzz**: Run `cargo install cargo-fuzz`.
+7. **wasm-snip**: Install using `cargo install wasm-snip`.
+8. **cargo-nextest**: Install using `cargo install cargo-nextest --locked`.
+9. **cargo-fuzz**: Run `cargo install cargo-fuzz`.
 
 ### Test
 
diff --git a/crates/loro-wasm/.cargo/config.toml b/crates/loro-wasm/.cargo/config.toml
index 8d711e80..31af7dff 100644
--- a/crates/loro-wasm/.cargo/config.toml
+++ b/crates/loro-wasm/.cargo/config.toml
@@ -1,5 +1,5 @@
 [profile.release]
 lto = true
 opt-level = "s"
-debug = false
+debug = true
 codegen-units = 1
diff --git a/crates/loro-wasm/scripts/build.ts b/crates/loro-wasm/scripts/build.ts
index 069a7306..4a35c124 100644
--- a/crates/loro-wasm/scripts/build.ts
+++ b/crates/loro-wasm/scripts/build.ts
@@ -37,6 +37,10 @@ async function build() {
   if (profile !== "dev") {
     await Promise.all(
       TARGETS.map(async (target) => {
+        // --snip-rust-panicking-code --snip-rust-fmt-code 
+        const snip = `wasm-snip ./${target}/loro_wasm_bg.wasm -o ./${target}/loro_wasm_bg.wasm`;
+        console.log(">", snip);
+        await Deno.run({ cmd: snip.split(" "), cwd: LoroWasmDir }).status();
         const cmd = `wasm-opt -Os ./${target}/loro_wasm_bg.wasm -o ./${target}/loro_wasm_bg.wasm`;
         console.log(">", cmd);
         await Deno.run({ cmd: cmd.split(" "), cwd: LoroWasmDir }).status();