diff --git a/Dockerfile b/Dockerfile
index 0b78365..cc03a79 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,6 +20,11 @@ FROM ubuntu:20.04
 ARG uid
 
 
+
+################
+# Mysql client #
+################
+
 RUN apt-get update && apt-get upgrade -y
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y tzdata
 
@@ -31,29 +36,41 @@ RUN apt-get install -y \
     nano vim \
     git
 
-# Python3.8 & pip
+
+
+################
+# Python & pip #
+################
 RUN apt-get install -y python3.8
 RUN apt-get install -y python3.8-dev
 RUN apt-get install -y python3-pip
 RUN cd /usr/bin && ln -s python3 python
 RUN python -m pip install --upgrade pip
 
-# For guitastro
 
 # DEV only
 # for dot => PNG diagrams generation with pyreverse (pylint)
 RUN apt-get install -y graphviz graphviz-dev
 
-# Guitastro
+
+
+#############
+# GUITASTRO #
+#############
+
+#
+# Guitastro C/C++ dependencies
+#
+
+# - ASTROMETRY.NET (in order to process images locally, without having to send (big) images to astrometry.net)
 RUN apt-get install -y \
-	# - ASTROMETRY.NET (in order to process images locally, without having to send (big) images to astrometry.net)
 	astrometry.net astrometry-data-tycho2 \
 	#astrometry-data-2mass \
 	# - PIL
 	python3-tk \
 	python3-pil python3-pil.imagetk
 
-# - INDI => for Guitastro
+# - INDI
 # https://indilib.org/get-indi/download-ubuntu.html
 # For apt-add-repository :
 RUN apt-get install -y software-properties-common
@@ -72,14 +89,14 @@ RUN apt-get install -y gsc kstars-bleeding libindi1 indi-bin swig libz3-dev libc
 # Obligatoire ?
 #RUN pip install --user --install-option="--prefix=" pyindi-client
 
-# - ASTAP (Astrometry) => for Guitastro
+# - ASTAP (Astrometry)
 # Download .deb file from https://www.hnsky.org/astap.htm
 RUN apt-get install -y wget 
 RUN wget https://www.hnsky.org/astap_amd64.deb
 RUN apt-get install -y ./astap_amd64.deb
 RUN rm ./astap_amd64.deb
 
-# - PYLON (Cameras BASLER) => for Guitastro
+# - PYLON (Cameras BASLER)
 # https://www.baslerweb.com/en/products/software/basler-pylon-camera-software-suite/
 # (you will have to fill a form to be able to download)
 # pylon_6.3.0.23157_x86_64_setup.tar.gz
@@ -103,6 +120,7 @@ RUN apt-get update && apt-get upgrade -y
 # apt install spyder
 # apt install graphviz libgraphviz-dev
 
+# - Graphic layer
 # Add a VNC server to have local graphic windows
 # When you run this container, a VNC server will be created automatically. 
 # You must bind a host port to the container’s port 5900 – this is the port the VNC server will be exposed on
@@ -113,9 +131,16 @@ CMD ["x11vnc", "-create", "-forever"]
 #RUN x11vnc -create -forever
 
 
+
+
+
 # Get IRAP self signed certificate
 RUN echo | openssl s_client -connect gitlab.irap.omp.eu:443 -servername gitlab.irap.omp.eu 2>/dev/null | openssl x509 > /etc/ssl/certs/gitlab.irap.omp.eu.crt
 
+#################################
+# PyROS user (better than root) #
+#################################
+
 RUN echo "$uid" > test.txt
 # Adding new user (pyros_user) and creating his home folder
 RUN useradd --create-home --shell /bin/bash pyros_user --uid $uid
@@ -127,18 +152,18 @@ WORKDIR /home/pyros_user/app
 # Switch from root to pyros_user
 USER pyros_user
 
-#RUN python -m pip3 install --user --upgrade pip
-#RUN pip install --user --upgrade pip
 #RUN pip install --user wheel
 # TODO: pourquoi numpy ??? A virer ?
 #RUN pip install --user numpy
 
+
+
 # Copy local host machine files to image
 COPY --chown=pyros_user:pyros_user . .
 # Copy some aliases
 RUN cp .bash_aliases ..
 #RUN mv .bash_aliases ..
-#COPY --chown=pyros_user:pyros_user .bash_aliases ..
+
 
 # Adding local/bin to path to avoid pip warning
 ENV PATH "$PATH:/home/pyros_user/.local/bin"
@@ -155,6 +180,9 @@ RUN pip install --user click
 # - But we can at least use it to generate all the requirements*.txt files in a far better format
 RUN pip install --user pip-tools
 
+
+
 # Installing packages required for PyROS
 RUN pip install --user -r ./install/requirements.txt
 RUN pip install --user -r ./install/requirements_dev.txt
+
diff --git a/docker/PYROS_DOCKER_UPDATE b/docker/PYROS_DOCKER_UPDATE
index 81cafc8..207aa78 100755
--- a/docker/PYROS_DOCKER_UPDATE
+++ b/docker/PYROS_DOCKER_UPDATE
@@ -6,6 +6,15 @@ then
     echo "db_pyros or pyros weren't running, starting them..."
     ./PYROS_DOCKER_START.bat
 fi
+
+# Update source code
+# - GuitastroGuitastro
+echo "Updating Guitastro source code"
+(cd ../vendor/guitastro/ ; git pull)
+# - PyROS
+echo "Updating PyROS source code"
 git pull
+
+# Update BD, doc, ...
 docker exec -it pyros python3 pyros.py update
 
--
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