diff --git a/apps/m4b-tool/Dockerfile b/apps/m4b-tool/Dockerfile
new file mode 100644
index 00000000..dbf94e07
--- /dev/null
+++ b/apps/m4b-tool/Dockerfile
@@ -0,0 +1,71 @@
+FROM sandreas/ffmpeg:5.0.1-3 as ffmpeg
+FROM sandreas/tone:v0.1.4 as tone
+FROM sandreas/mp4v2:2.1.1 as mp4v2
+FROM sandreas/fdkaac:2.0.1 as fdkaac
+
+FROM ghcr.io/cdloh/alpine:3.19.1@sha256:eb1014101364aba400f9c0bf38cf916cd2760f198d29467891bafcc8d46dd497 as build
+
+ARG VERSION
+ENV WORKDIR /mnt/
+ENV M4BTOOL_TMP_DIR /tmp/m4b-tool/
+
+
+RUN echo "---- INSTALL RUNTIME PACKAGES ----" && \
+  apk add --no-cache --update --upgrade \
+  # mp4v2: required libraries
+  libstdc++ \
+  # m4b-tool: php cli, required extensions and php settings
+  php83-cli \
+  php83-dom \
+  php83-json \
+  php83-xml \
+  php83-mbstring \
+  php83-phar \
+  php83-tokenizer \
+  php83-xmlwriter \
+  php83-openssl \
+  composer \
+  git \
+  && echo "date.timezone = UTC" >> /etc/php83/php.ini \
+  && ln -s /usr/bin/php83 /bin/php \
+  && git clone https://github.com/sandreas/m4b-tool.git . \
+  && if [ -n "${VERSION}" ]; then \
+    NUMBER_COMMITS_TO_REVERT=$(( $(git rev-list --count --first-parent HEAD) - $(echo "${VERSION}" | cut -d "." -f3) )); \
+    git checkout "master~${NUMBER_COMMITS_TO_REVERT}"; \
+  fi \
+  && composer install --no-dev --ignore-platform-reqs \
+  && php -d phar.readonly=off tools/box.phar build \
+  && chmod +x dist/*.phar && tar -C dist -czf dist/m4b-tool.tar.gz m4b-tool.phar
+
+
+FROM ghcr.io/cdloh/alpine:3.19.1@sha256:eb1014101364aba400f9c0bf38cf916cd2760f198d29467891bafcc8d46dd497
+
+
+RUN echo "---- INSTALL RUNTIME PACKAGES ----" && \
+  apk add --no-cache --update --upgrade \
+  # mp4v2: required libraries
+  libstdc++ \
+  # m4b-tool: php cli, required extensions and php settings
+  php83-cli \
+  php83-dom \
+  php83-json \
+  php83-xml \
+  php83-mbstring \
+  php83-phar \
+  php83-tokenizer \
+  php83-xmlwriter \
+  php83-openssl \
+  && echo "date.timezone = UTC" >> /etc/php83/php.ini \
+  && ln -s /usr/bin/php83 /bin/php
+
+COPY --from=ffmpeg /usr/local/bin/ffmpeg /usr/local/bin/
+COPY --from=ffmpeg /usr/local/bin/ffprobe /usr/local/bin/
+COPY --from=tone /usr/local/bin/tone /usr/local/bin/
+COPY --from=mp4v2 /usr/local/bin/mp4* /usr/local/bin/
+COPY --from=mp4v2 /usr/local/lib/libmp4v2* /usr/local/lib/
+COPY --from=fdkaac /usr/local/bin/fdkaac /usr/local/bin/
+COPY --from=build /app/dist/m4b-tool.phar /usr/local/bin/m4b-tool
+
+
+WORKDIR ${WORKDIR}
+ENTRYPOINT ["/usr/local/bin/m4b-tool"]
diff --git a/apps/m4b-tool/ci/goss.yaml b/apps/m4b-tool/ci/goss.yaml
new file mode 100644
index 00000000..e1fababa
--- /dev/null
+++ b/apps/m4b-tool/ci/goss.yaml
@@ -0,0 +1,12 @@
+---
+# https://github.com/aelsabbahy/goss/blob/master/docs/manual.md#file
+file:
+  /usr/local/bin/m4b-tool:
+    exists: true
+
+# https://github.com/aelsabbahy/goss/blob/master/docs/manual.md#command
+command:
+  m4b-tool:
+    exit-status: 0
+    exec: "/usr/local/bin/m4b-tool list"
+    stderr: []
diff --git a/apps/m4b-tool/ci/latest.sh b/apps/m4b-tool/ci/latest.sh
new file mode 100755
index 00000000..0a1d2726
--- /dev/null
+++ b/apps/m4b-tool/ci/latest.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+git clone --quiet https://github.com/sandreas/m4b-tool.git /tmp/m4b-tool
+pushd /tmp/m4b-tool > /dev/null || exit
+version=$(git rev-list --count --first-parent HEAD)
+popd > /dev/null || exit
+rm -rf /tmp/m4b-tool
+printf "0.5.%d" "${version}"
diff --git a/apps/m4b-tool/metadata.json b/apps/m4b-tool/metadata.json
new file mode 100644
index 00000000..8f6de304
--- /dev/null
+++ b/apps/m4b-tool/metadata.json
@@ -0,0 +1,18 @@
+{
+  "app": "m4b-tool",
+  "base": false,
+  "channels": [
+    {
+      "name": "master",
+      "platforms": [
+        "linux/amd64",
+        "linux/arm64"
+      ],
+      "stable": false,
+      "tests": {
+        "enabled": true,
+        "type": "cli"
+      }
+    }
+  ]
+}