diff --git a/Dockerfile b/Dockerfile
index 548ed3928..a54f248c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -128,3 +128,6 @@ RUN mkdir /build && cd /src/php-src && emcc $OPTIMIZE \
 	-lidbfs.js                       \
 		/src/phpw.o /src/usr/lib/sqlite3.o .libs/libphp.a /src/usr/lib/libxml2.a
 RUN rm -r /src/*
+
+FROM scratch
+COPY --from=php-wasm /build/ .
diff --git a/README.md b/README.md
index 685c63dae..fa47a9697 100644
--- a/README.md
+++ b/README.md
@@ -13,12 +13,7 @@ I fixed some inconsistencies in the Makefile and removed non-essential things. T
 ## Build
 
 ```
-docker build . -t php-wasm
-# create a temporary container
-docker create --name=php-wasm php-wasm
-# to copy builded files
-docker cp php-wasm:/build/php-web.wasm ./build
-docker cp php-wasm:/build/php-web.mjs ./build/php-web.mjs
+docker buildx bake
 ```
 
 Builded files will be located in `build/php-web.js` and `build/php-web.wasm`.
diff --git a/docker-bake.hcl b/docker-bake.hcl
new file mode 100644
index 000000000..00bd33e59
--- /dev/null
+++ b/docker-bake.hcl
@@ -0,0 +1,4 @@
+target "default" {
+	output = ["type=local,dest=./build"]
+	tags = ["php-wasm"]
+}