I bet pluggable storage layers would be really useful for building something like GitHub. Start with one of the builtin storage layers, and if scale puts strain

I bet pluggable storage layers would be really useful for building something like GitHub. Start with one of the builtin storage layers, and if scale puts strain on that, write a better storage layer. GitHub more-or-less did that when they switched off of Engine Yard (where they were using GFS), but they had to roll their own with RPC calls. That also meant that they had to change Grit, their Ruby git library, to split stuff that had to get executed on the fileservers (where the actual repos are stored) and stuff that can be executed on the server that wanted the information. With pluggable storage layers, they could have changed how they stored the repos without changing their bindings at all.