diff --git a/README.md b/README.md
index ca46e00..0eb2792 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,13 @@ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh # install rust
 cargo run --package=egui_circles                               # build & run
 ```
 
+### wasm32 build target
+
+```bash
+cargo install --locked trunk    # https://trunkrs.dev
+trunk serve                     # visit http://127.0.0.1:8080
+```
+
 # Acknowledgments
 
 ### ImGui