Seaside. B2B stuff. There is no big deal using this in production. Even works on AWS if you want. There is no big difference in doing java <somejar> and pharo <someimage> at the end of the day.

So, load balancing and monitoring you can do with things like nginx and monit.

Of course, I am no in the league of doing the next Twitter. It may keep up tough.

I am tying everything together with RabbitMQ, so scaling is doable.

Storage for blobs etc is in Riak.