Iâm happy to answer any questions about Simple Persistence. It is a nice framework around (potentially any) serializer. Itâs meant to be pluggable but currently uses Fuel out of the box. You just tell it what classes to persist and then create two methods per class to handle materialization/serialization. For the record, Ramon Leon created it in a blog post. I just ported it to Pharo and have been maintaining it. The stated reason he created it is that most solutions are complete overkill for 99% of projects that will never âbecome the next googleâ. Itâs pretty basic, but at least two steps more sophisticated than simply saving the image because it keeps old versions and is easily reloadable into another image. That said, Iâve been using it almost exclusively for my personal projects and have yet to grow out of it.