Summary: The video of my recent Shake talk is now online.
This Shake talk took a distinct approach from my previous talks - partly because I now have a better understanding of how large Shake build systems are typically structured. The key theoretical innovation of Shake is monadic dependencies, and the key technical innovation is using Haskell as an embedded language. Putting these pieces together lets Shake users write a build system interpreter, rather than a monolithic build system.
In the talk I suggest that build systems can be split into metadata (changes frequently, can be tracked, custom format for each project relying on conventions) and an interpreter for that metadata (written using Shake). The result seems to work quite nicely, especially in larger projects where everyone is expected to update the metadata, but changes to the interpreter are expected to be rarer and more carefully thought out.
First fruit of #haskellx - switched my makefiles over to Shake. Parallelised builds & a readable syntax. Much win.