diff --git a/docker/app/Dockerfile b/docker/app/Dockerfile
index 3bae4d3..759907b 100644
--- a/docker/app/Dockerfile
+++ b/docker/app/Dockerfile
@@ -1,41 +1,40 @@
-FROM php:8.3-cli
-
-RUN apt-get update && apt-get install -y --no-install-recommends \
-  nano \
-  bash \
-  libzip-dev \
-  unzip \
-  libonig-dev
-
-# Install PHP Extensions
-ENV CFLAGS="$CFLAGS -D_GNU_SOURCE"
-RUN docker-php-ext-install zip \
-  && docker-php-ext-install opcache sockets mbstring \
-  && docker-php-ext-enable opcache sockets mbstring
-
-# Protobuf and GRPC
-ENV PROTOBUF_VERSION "3.25.1"
-RUN pecl channel-update pecl.php.net
-RUN pecl install protobuf-${PROTOBUF_VERSION} grpc \
-    && docker-php-ext-enable protobuf grpc
-
-# Install Temporal CLI
-COPY --from=temporalio/admin-tools /usr/local/bin/tctl /usr/local/bin/tctl
+FROM php:8.3-cli-alpine as build
+
+# set memory limit
+# RUN echo 'memory_limit = 512M' >> /usr/local/etc/php/conf.d/docker-php-memlimit.ini;
 
-# Install Composer
-COPY --from=composer /usr/bin/composer /usr/local/bin/composer
+# copy binaries
+COPY --from=mlocati/php-extension-installer /usr/bin/install-php-extensions /usr/local/bin/
+COPY --from=temporalio/admin-tools /usr/local/bin/tctl /usr/local/bin/tctl
+COPY --from=ghcr.io/roadrunner-server/roadrunner:latest /usr/bin/rr /usr/local/bin/rr
+COPY --from=composer:2 /usr/bin/composer /usr/bin/composer
 
-# Wait for Temporal service to star up
+# copy and chmod wait script
 COPY wait-for-temporal.sh /usr/local/bin
 RUN chmod +x /usr/local/bin/wait-for-temporal.sh
 
-# Copy application codebase
+# install deps and php extensions
+RUN apk --no-cache add git && \
+    install-php-extensions \
+    zip \
+    mbstring \
+    opcache \
+    sockets \
+    protobuf \
+    grpc
+
+FROM build AS vendor
+
 WORKDIR /var/app
-COPY app/ /var/app
+COPY app/composer.json .
+
+# build `vendor` with all deps
+RUN composer install --prefer-dist --no-ansi --no-dev --no-autoloader --no-scripts
 
-RUN composer install
+FROM vendor as app
+
+WORKDIR /var/app
+COPY app .
 
-# Setup RoadRunner
-RUN vendor/bin/rr get --no-interaction \
-    && mv rr /usr/local/bin/rr \
-    && chmod +x /usr/local/bin/rr
+# build autoload
+RUN composer dump-autoload