What do other monks use?

My fancy IDE uses drag & drop of files, targets, dependencies. The underlying data is XML of medium difficulty to decipher when things go haywire in the GUI, which does happen for rare cases.

Good: not thought about build file formats in years. Bad: nothing so far. Evaluation: totally worth it.

The exact product is not important. Fairly certain Eclipse, Visual Studio, Xcode, Komodo offer similar features.