diff --git a/Dockerfile b/Dockerfile
index c211113..8832eb9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,17 +1,32 @@
-FROM python:3.8-buster
+FROM python:3.8.8-slim-buster as base
 
+
+# shared between builder and runtime image
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-        dumb-init libgl1 \
+        dumb-init \
+        libgl1 \
+        libglib2.0-0 \
+        libsm6 \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /opt/tf-bodypix
 
+
+# builder
+FROM base as builder
+
 COPY requirements.build.txt ./
-RUN pip install --disable-pip-version-check --user -r requirements.build.txt
+RUN pip install --disable-pip-version-check --no-warn-script-location --user -r requirements.build.txt
 
 COPY requirements.txt ./
-RUN pip install --disable-pip-version-check --user -r requirements.txt
+RUN pip install --disable-pip-version-check --no-warn-script-location --user -r requirements.txt
+
+
+# runtime image
+FROM base
+
+COPY --from=builder /root/.local /root/.local
 
 COPY tf_bodypix ./tf_bodypix
 
diff --git a/README.md b/README.md
index a1bff0d..798e493 100644
--- a/README.md
+++ b/README.md
@@ -310,8 +310,12 @@ You could also use the Docker image if you prefer.
 The entrypoint will by default delegate to the CLI, except for `python` or `bash` commands.
 
 ```bash
+# pull latest image (you may also use tags)
 docker pull de4code/tf-bodypix
+```
 
+```bash
+# mount real and virtual webcam devices on linux
 docker run --rm \
     --device /dev/video0 \
     --device /dev/video2 \
@@ -323,6 +327,24 @@ docker run --rm \
     --threshold=0.75
 ```
 
+```bash
+# mount x11 display on linux
+docker run --rm \
+    --net=host \
+    --volume /tmp/.X11-unix:/tmp/.X11-unix \
+    --volume ${HOME}/.Xauthority:/root/.Xauthority \
+    --env DISPLAY \
+    de4code/tf-bodypix \
+    replace-background \
+    --source \
+    "https://www.dropbox.com/s/s7jga3f0dreavlb/video-of-a-man-laughing-and-happy-1608393-360p.mp4?dl=1" \
+    --background \
+    "https://www.dropbox.com/s/b22ss59j6pp83zy/brown-landscape-under-grey-sky-3244513.jpg?dl=1" \
+    --show-output \
+    --threshold=0.75 \
+    --mask-blur=5
+```
+
 ## Example Media
 
 Here are a few example media files you could try.