The latest version of Alchitry Labs is now available! Head over to its page to download it!
This version of the IDE fixes a ton of bugs and adds integration with Vivado's IP. You can now go to Project->Add Memory Controller to automatically add and build a DDR3 memory controller to your project.
There are new components in the Component Library to help use the controller as well. The MIG Wrapper is worth checking out if you are using Lucid. It wraps the interface into an easier package with structs.
We the IDE now supporting everything we need, we will start working on the DDR3 and GPU tutorials!
You can also make whatever IP you need by going to Project->Vivado IP Catalog. Note that this is only for the Alchitry Au.