It might just be the configuration of Pillar used for the PharoLaserGameTutorial, but directory with the sources files get cluttered with a lot of generated files. However I discovered something interesting using Atom to edit the Pillar files. You can set the "Hide Vcs Ignored Files" option in the Tree View package to ignore the files configured in .gitignore. This really cleans up the navigator. btw, one for the wish list.... I like the way Atom provides a nice list of Keybindings per package, as well as overall. It would be nice to have something similar in Pharo. cheers -ben