diff --git a/docs/best-practices/deployment.md b/docs/best-practices/deployment.md
index dffa44d..9543a17 100644
--- a/docs/best-practices/deployment.md
+++ b/docs/best-practices/deployment.md
@@ -690,7 +690,6 @@ be achieved by using a `Dockerfile` with the following contents:
 === "Dockerfile basics for development"
 
     ```docker title="Dockerfile"
-    # syntax=docker/dockerfile:1
     FROM php:8.5-cli
 
     WORKDIR /app/
@@ -706,27 +705,38 @@ be achieved by using a `Dockerfile` with the following contents:
 === "Dockerfile for minimal production image"
 
     ```docker title="Dockerfile"
-    # syntax=docker/dockerfile:1
-    FROM composer:2 AS build
+    # base PHP version for the build and final project
+    FROM php:8.5-alpine AS php-version
 
-    WORKDIR /app/
+    # base composer stage to install dependencies in parallel
+    FROM composer:2 AS vendor
     COPY composer.json composer.lock ./
     RUN composer install --no-dev --ignore-platform-reqs --optimize-autoloader
 
-    FROM php:8.5-alpine
+    # base build stage with build tools to compile extensions in parallel
+    FROM php-version AS phpize
+    RUN apk --no-cache add --virtual .phpize-deps autoconf gcc libc-dev linux-headers make
+
+    FROM phpize AS ext-ev
+    RUN MAKEFLAGS="-j$(nproc)" pecl install ev && docker-php-ext-enable ev
+
+    FROM phpize AS ext-sockets
+    RUN docker-php-ext-install -j$(nproc) sockets
 
-    # recommended: install optional extensions ext-ev and ext-sockets
-    RUN apk --no-cache add ${PHPIZE_DEPS} libev linux-headers \ 
-        && pecl install ev \
-        && docker-php-ext-enable ev \
-        && docker-php-ext-install sockets \
-        && apk del ${PHPIZE_DEPS} linux-headers \
-        && echo "memory_limit = -1" >> "$PHP_INI_DIR/conf.d/acme.ini"
+    # base os stage with recommended extensions ext-ev and ext-sockets
+    FROM php-version AS os
+    COPY --from=ext-ev /usr/local/lib/php/extensions/ /usr/local/lib/php/extensions/
+    COPY --from=ext-ev /usr/local/etc/php/conf.d/docker-php-ext-ev.ini /usr/local/etc/php/conf.d/
+    COPY --from=ext-sockets /usr/local/lib/php/extensions/ /usr/local/lib/php/extensions/
+    COPY --from=ext-sockets /usr/local/etc/php/conf.d/docker-php-ext-sockets.ini /usr/local/etc/php/conf.d/
+    RUN echo "memory_limit = -1" >> "$PHP_INI_DIR/conf.d/acme.ini"
 
+    # final project stage
+    FROM os
     WORKDIR /app/
     COPY public/ public/
     # COPY src/ src/
-    COPY --from=build /app/vendor/ vendor/
+    COPY --from=vendor /app/vendor/ vendor/
 
     ENV X_LISTEN=0.0.0.0:8080
     EXPOSE 8080
diff --git a/tests/integration/Dockerfile-basics b/tests/integration/Dockerfile-basics
index 670d87b..4bbac99 100644
--- a/tests/integration/Dockerfile-basics
+++ b/tests/integration/Dockerfile-basics
@@ -1,4 +1,3 @@
-# syntax=docker/dockerfile:1
 FROM php:8.5-cli
 
 WORKDIR /app/
diff --git a/tests/integration/Dockerfile-production b/tests/integration/Dockerfile-production
index 607ff38..0b18757 100644
--- a/tests/integration/Dockerfile-production
+++ b/tests/integration/Dockerfile-production
@@ -1,27 +1,38 @@
-# syntax=docker/dockerfile:1
-FROM composer:2 AS build
+# base PHP version for the build and final project
+FROM php:8.5-alpine AS php-version
 
-WORKDIR /app/
+# base composer stage to install dependencies in parallel
+FROM composer:2 AS vendor
 COPY composer.json composer.lock ./
 # production environment should install optimized dependencies: 
 # RUN composer install --no-dev --ignore-platform-reqs --optimize-autoloader
 # dev environment already has dependencies installed:
 COPY vendor/ vendor/
 
-FROM php:8.5-alpine
+# base build stage with build tools to compile extensions in parallel
+FROM php-version AS phpize
+RUN apk --no-cache add --virtual .phpize-deps autoconf gcc libc-dev linux-headers make
+
+FROM phpize AS ext-ev
+RUN MAKEFLAGS="-j$(nproc)" pecl install ev && docker-php-ext-enable ev
+
+FROM phpize AS ext-sockets
+RUN docker-php-ext-install -j$(nproc) sockets
 
-# recommended: install optional extensions ext-ev and ext-sockets
-RUN apk --no-cache add ${PHPIZE_DEPS} libev linux-headers \ 
-    && pecl install ev \
-    && docker-php-ext-enable ev \
-    && docker-php-ext-install sockets \
-    && apk del ${PHPIZE_DEPS} linux-headers \
-    && echo "memory_limit = -1" >> "$PHP_INI_DIR/conf.d/acme.ini"
+# base os stage with recommended extensions ext-ev and ext-sockets
+FROM php-version AS os
+COPY --from=ext-ev /usr/local/lib/php/extensions/ /usr/local/lib/php/extensions/
+COPY --from=ext-ev /usr/local/etc/php/conf.d/docker-php-ext-ev.ini /usr/local/etc/php/conf.d/
+COPY --from=ext-sockets /usr/local/lib/php/extensions/ /usr/local/lib/php/extensions/
+COPY --from=ext-sockets /usr/local/etc/php/conf.d/docker-php-ext-sockets.ini /usr/local/etc/php/conf.d/
+RUN echo "memory_limit = -1" >> "$PHP_INI_DIR/conf.d/acme.ini"
 
+# final project stage
+FROM os
 WORKDIR /app/
 COPY public/ public/
 # COPY src/ src/
-COPY --from=build /app/vendor/ vendor/
+COPY --from=vendor /app/vendor/ vendor/
 
 ENV X_LISTEN=0.0.0.0:8080
 EXPOSE 8080