Finally I'm making the progress public *officially* :P I've written some posts in my blog about the bootstrap progress: http://playingwithobjects.wordpress.com/2012/06/08/the-bootstrap-chronicles-... http://playingwithobjects.wordpress.com/2012/06/11/the-bootstrap-chronicles-... http://playingwithobjects.wordpress.com/2012/06/17/the-bootstrap-chronicles-... The last post is probably the most interesting one, telling how you can try the code *(at your own risk)*. If you do not like reading long posts, here is a summary: - code is available to bootstrap a pharo image. - the bootstrap takes a sample on the current running pharo image. It does not start from source code yet. - the bootstrapped image doe some nice reporting like space tally and a list of broken references and not initialized stuff. This list is a point to start improving the pharo core packaging, to make the core not dependent on external packages. - the size of the bootstrapped image fluctuates between 1.1 and 2 megabytes depending on the initialization and sample you take to bootstrap. This is a point to attack using the spacetally and some other reports probably. You can also see a jenkins job at Ecole des Mines where that report is printed as a Junit report. As long as that list has items to fix, the job will remain yellow :). http://car.mines-douai.fr/ci/job/Seed%20Broken%20References%20Report/ http://car.mines-douai.fr/ci/job/Seed%20Broken%20References%20Report/lastCom... My next steps are making the bootstrap start from a source code specification and work a bit on modularization. Enjoy, Guille