+We provide a `nasqueron/arcanist` image to run **Arcanist** as a Docker container.
+
+Our goal is to be able to use `arc` when we tweak a Docker image on a Docker engine server, where PHP isn't installed. To have an Arcanist image allows us not to install PHP everywhere.
+
+Installation
+------------
+
+You only have to pull our image, then invoke a shell or Arc directly:
+
+```
+docker pull nasqueron/arcanist
+
+docker run -it --rm nasqueron/arcanist bash
+docker run -it --rm nasqueron/arcanist arc anoid
+```
+
+Configuration and workspace volumes
+-----------------------------------
+
+We provide two volumes, one to store the configuration (.arcrc, .gitconfig), one to store the repository you want to work with.
+
+You probably want to pass the current directory as workspace directory. Use `pwd` (Docker won' t like `.`, and the Docker client could be on another machine than the server by the way).
+
+To store the configuration, create a `~/.arc` folder with:
+
+ - `~/.arc/arcrc`: a copy of your .arcrc file
+ - `~/.arc/gitconfig` : a copy of your .gitconfig file
+
+I want an arc command
+---------------------
+
+It could be convenient to create a wrapper script in `/usr/local/bin/arc` to be able to directly write `arc diff`: