Unfortunately, within a limited time, it's impossible to cover all the intricacies and possibilities that Apache and Tcl offer, but I hope to have shown that using these two systems lets you do some very powerful things.

It may not seem like it in just an hour, but Rivet is simple. It is less than 5000 lines of code, and yet it provides most of what PHP does, with easily 1/10th the code. It does this by carefully reutilizing everything it can from Apache and Tcl.

I hope that by showing you some of what is possible, you will be able to further explore, and hopefully create something new and interesting!