diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 769e215..e1b7919 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -35,4 +35,6 @@ jobs:
         username: ${{ github.repository_owner }}
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: Run build
-      run: earthly +build
\ No newline at end of file
+      run: earthly +build
+      env:
+        EARTHLY_PUSH: ${{ github.ref == 'refs/heads/main' }}
\ No newline at end of file
diff --git a/Earthfile b/Earthfile
index 926661e..63503d1 100644
--- a/Earthfile
+++ b/Earthfile
@@ -67,5 +67,26 @@ namada:
   RUN tar --strip-components 2 -xvzf binaryen.tar.gz binaryen-version_${wasm_opt_version}/bin/wasm-opt
   RUN mv wasm-opt /usr/local/bin
 
+wasm:
+  FROM rust:1.78.0-bookworm
+
+  ARG wasm_opt_version=118
+
+  WORKDIR /__w/namada/namada
+
+  RUN apt-get update -y
+  RUN apt-get install -y protobuf-compiler 
+  RUN apt-get install -y libudev-dev
+  RUN apt-get install -y parallel
+
+  RUN rustup toolchain install 1.78.0 --profile minimal
+  RUN rustup target add wasm32-unknown-unknown
+
+  # download wasm-opt
+  RUN curl -o binaryen.tar.gz -LO https://github.com/WebAssembly/binaryen/releases/download/version_${wasm_opt_version}/binaryen-version_${wasm_opt_version}-x86_64-linux.tar.gz
+  RUN tar --strip-components 2 -xvzf binaryen.tar.gz binaryen-version_${wasm_opt_version}/bin/wasm-opt
+  RUN mv wasm-opt /usr/local/bin
+
 build:
-  BUILD +namada
\ No newline at end of file
+  BUILD +namada
+  BUILD +wasm
\ No newline at end of file