[karmajunkie]

I have to disagree. They were messaging brokers masquerading as or mistaken for CRUD apps, which directly led to many of their early scaling issues.

[somehnreader]

But you can just implement them(the early versions) on any old server with a nice database installed if you want to. And you can do that in a weekend.

And yes of course you will want to take a step back and change almost everything about it if you want it to scale to more orders of magnitude.