diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..5193485
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,53 @@
+name: Monica's docker
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-latest]
+        variant: [apache, fpm, fpm-alpine]
+        arch: [amd64, i386]
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
+      with:
+        repository: 'docker-library/official-images'
+        path: 'official-images'
+
+    - name: Fix image
+      if: matrix.arch == 'i386'
+      run: |
+        sed -i -e 's/FROM php/FROM i386\/php/g' "${{ matrix.variant }}/Dockerfile"
+
+    - name: Build image ${{ matrix.variant }} ${{ matrix.arch }}
+      run: |
+        docker build ${{ matrix.variant }} -t monica:${{ matrix.variant }}
+        docker images
+
+    - name: Test image ${{ matrix.variant }} ${{ matrix.arch }}
+      run: |
+        official-images/test/run.sh monica:${{ matrix.variant }}
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Test update script
+      run: |
+        hash_before=$(git write-tree)
+        ./update.sh
+        bash -c "[[ $hash_before = $(git add -A && git write-tree) ]]"
+
+    - name: Install bashbrew
+      run: |
+        curl -fsSL -o bashbrew https://doi-janky.infosiftr.net/job/bashbrew/lastSuccessfulBuild/artifact/bin/bashbrew-amd64
+        chmod +x "bashbrew"
+        echo "::add-path::$(pwd)"
+    - name: Run stackbrew
+      run: |
+        ./generate-stackbrew-library.sh
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 6fd8d6e..db9cdc1 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -1,12 +1,6 @@
 FROM php:%%PHP_VERSION%%-%%VARIANT%%
 
-LABEL maintainer="Alexis Saettler <alexis@saettler.org> (@asbiin)" \
-      org.label-schema.name="MonicaHQ, the Personal Relationship Manager" \
-      org.label-schema.description="This is MonicaHQ, your personal memory! MonicaHQ is like a CRM but for the friends, family, and acquaintances around you." \
-      org.label-schema.url="https://monicahq.com" \
-      org.label-schema.vcs-url="https://github.com/monicahq/monica" \
-      org.label-schema.vendor="Monica" \
-      org.label-schema.schema-version="1.0"
+%%LABEL%%
 
 # entrypoint.sh dependencies
 RUN set -ex; \
@@ -15,7 +9,8 @@ RUN set -ex; \
 		bash \
 		coreutils \
 		rsync \
-	;
+	; \
+    rm -rf /var/cache/apk/*
 
 # Install required PHP extensions
 RUN set -ex; \
@@ -76,7 +71,8 @@ RUN set -ex; \
 		| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
 		)"; \
 	apk add --virtual .monica-phpext-rundeps $runDeps; \
-	apk del .build-deps
+	apk del .build-deps; \
+    rm -rf /var/cache/apk/*
 
 # Set crontab for schedules
 RUN set -ex; \
@@ -130,7 +126,8 @@ RUN set -ex; \
 	cp /usr/src/monica/.env.example /usr/src/monica/.env; \
 	chown -R www-data:www-data /usr/src/monica; \
     \
-	apk del .fetch-deps
+	apk del .fetch-deps; \
+    rm -rf /var/cache/apk/*
 
 COPY upgrade.exclude \
     /usr/local/share/
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index 2e32a9f..0c7bc0d 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -1,17 +1,12 @@
 FROM php:%%PHP_VERSION%%-%%VARIANT%%
 
-LABEL maintainer="Alexis Saettler <alexis@saettler.org> (@asbiin)" \
-      org.label-schema.name="MonicaHQ, the Personal Relationship Manager" \
-      org.label-schema.description="This is MonicaHQ, your personal memory! MonicaHQ is like a CRM but for the friends, family, and acquaintances around you." \
-      org.label-schema.url="https://monicahq.com" \
-      org.label-schema.vcs-url="https://github.com/monicahq/monica" \
-      org.label-schema.vendor="Monica" \
-      org.label-schema.schema-version="1.0"
+%%LABEL%%
 
 # entrypoint.sh dependencies
 RUN set -ex; \
     \
     apt-get update; \
+    apt-get -y autoremove; \
     apt-get install -y --no-install-recommends \
         rsync \
         bash \
@@ -82,7 +77,7 @@ RUN set -ex; \
 		| xargs -rt apt-mark manual; \
 		\
 	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
-	rm -rf /var/lib/apt/lists/*; \
+    rm -rf /var/lib/apt/lists/*; \
 	\
 	if command -v a2enmod; then \
 		a2enmod rewrite; \
diff --git a/apache/Dockerfile b/apache/Dockerfile
index 1ba437a..98da637 100644
--- a/apache/Dockerfile
+++ b/apache/Dockerfile
@@ -12,6 +12,7 @@ LABEL maintainer="Alexis Saettler <alexis@saettler.org> (@asbiin)" \
 RUN set -ex; \
     \
     apt-get update; \
+    apt-get -y autoremove; \
     apt-get install -y --no-install-recommends \
         rsync \
         bash \
@@ -82,7 +83,7 @@ RUN set -ex; \
 		| xargs -rt apt-mark manual; \
 		\
 	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
-	rm -rf /var/lib/apt/lists/*; \
+    rm -rf /var/lib/apt/lists/*; \
 	\
 	if command -v a2enmod; then \
 		a2enmod rewrite; \
diff --git a/fpm-alpine/Dockerfile b/fpm-alpine/Dockerfile
index 24cf082..3f58dea 100644
--- a/fpm-alpine/Dockerfile
+++ b/fpm-alpine/Dockerfile
@@ -15,7 +15,8 @@ RUN set -ex; \
 		bash \
 		coreutils \
 		rsync \
-	;
+	; \
+    rm -rf /var/cache/apk/*
 
 # Install required PHP extensions
 RUN set -ex; \
@@ -76,7 +77,8 @@ RUN set -ex; \
 		| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
 		)"; \
 	apk add --virtual .monica-phpext-rundeps $runDeps; \
-	apk del .build-deps
+	apk del .build-deps; \
+    rm -rf /var/cache/apk/*
 
 # Set crontab for schedules
 RUN set -ex; \
@@ -130,7 +132,8 @@ RUN set -ex; \
 	cp /usr/src/monica/.env.example /usr/src/monica/.env; \
 	chown -R www-data:www-data /usr/src/monica; \
     \
-	apk del .fetch-deps
+	apk del .fetch-deps; \
+    rm -rf /var/cache/apk/*
 
 COPY upgrade.exclude \
     /usr/local/share/
diff --git a/fpm/Dockerfile b/fpm/Dockerfile
index bda54e3..044a8f8 100644
--- a/fpm/Dockerfile
+++ b/fpm/Dockerfile
@@ -12,6 +12,7 @@ LABEL maintainer="Alexis Saettler <alexis@saettler.org> (@asbiin)" \
 RUN set -ex; \
     \
     apt-get update; \
+    apt-get -y autoremove; \
     apt-get install -y --no-install-recommends \
         rsync \
         bash \
@@ -82,7 +83,7 @@ RUN set -ex; \
 		| xargs -rt apt-mark manual; \
 		\
 	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
-	rm -rf /var/lib/apt/lists/*; \
+    rm -rf /var/lib/apt/lists/*; \
 	\
 	if command -v a2enmod; then \
 		a2enmod rewrite; \
diff --git a/update.sh b/update.sh
index a600d89..eab36d2 100755
--- a/update.sh
+++ b/update.sh
@@ -28,6 +28,14 @@ RUN set -eu; sed -ri -e \"s!/var/www/html!\\\${APACHE_DOCUMENT_ROOT}!g\" /etc/ap
 	[fpm-alpine]=''
 )
 
+label="LABEL maintainer=\"Alexis Saettler <alexis@saettler.org> (@asbiin)\" \\\\\\n\
+      org.label-schema.name=\"MonicaHQ, the Personal Relationship Manager\" \\\\\\n\
+      org.label-schema.description=\"This is MonicaHQ, your personal memory! MonicaHQ is like a CRM but for the friends, family, and acquaintances around you.\" \\\\\\n\
+      org.label-schema.url=\"https://monicahq.com\" \\\\\\n\
+      org.label-schema.vcs-url=\"https://github.com/monicahq/monica\" \\\\\\n\
+      org.label-schema.vendor=\"Monica\" \\\\\\n\
+      org.label-schema.schema-version=\"1.0\""
+
 apcu_version="$(
 	git ls-remote --tags https://github.com/krakjoe/apcu.git \
 		| cut -d/ -f3 \
@@ -78,6 +86,7 @@ for variant in apache fpm fpm-alpine; do
 		s/%%VERSION%%/'"$version"'/;
 		s/%%SHA512%%/'"$sha512"'/;
 		s/%%CMD%%/'"${cmd[$variant]}"'/;
+		s#%%LABEL%%#'"$label"'#;
 		s#%%APACHE_DOCUMENT%%#'"${document[$variant]}"'#;
 		s/%%APCU_VERSION%%/'"${pecl_versions[APCu]}"'/;
 		s/%%MEMCACHED_VERSION%%/'"${pecl_versions[memcached]}"'/;