diff --git a/README.md b/README.md
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+++ b/README.md
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+# Dummy Android
+
+## Requirements
+
+- Android SDK
+- Docker (18.09.1+)
+- Docker Composer (1.21.0+)
+
+## Configuration
+
+By default, Android SDK is expected under `~/android/sdk`.
+It is possible to adapt this path in `docker-compose.yml`.
+But it may also be specified in your `local.properties`!
+
+## Usage
+
+The following command should build (if required) and start a shell session inside the container:
+
+```
+docker-compose --compatibility run --rm default
+```
+
+From there, Gradle and Fastlane should work as expected:
+
+```
+./gradlew tasks
+fastlane lanes
+```
+
+Most importantly, Fastlane or the whole bundle can be updated:
+
+```
+bundle update fastlane
+bundle update
+```
diff --git a/docker-compose.yml b/docker-compose.yml
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+++ b/docker-compose.yml
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+version: '3'
+services:
+  default:
+    build: 
+      context: lazyDir
+      dockerfile: centos7.Dockerfile
+      args:
+        uid: "${_UID:-1000}"
+        gid: "${_GID:-1000}"
+    volumes:
+      - .:/home/android/workspace
+      - ~/android/sdk:/opt/android/sdk
+      - ~/.gradle:/home/android/.gradle
+    working_dir: /home/android/workspace
+    stdin_open: true
+    tty: true
+    hostname: build-android.local
+    container_name: build-android.local
+    command: bash
+    networks:
+      - bridge
+    deploy:
+      resources:
+        limits:
+          cpus: '1.5'
+          memory: 1280M
+
+networks:
+  bridge:
+    external: true