The good news for anyone that still cares is that:
- There's only one technical aspect of the book - the application of the Handle::Ref+Wrapper pattern to file façades - to be worked on, and that's germane to a project I'm current undertaking, so it's two birds with one stone. Every other technique (including other applications of HRW) has now had several years of successful commercial use and is proven. So I guess there was something positive about my glacial pace, after all.
- I'm now confident of my workload for the next four months, meaning that I can plan for specific chunks of time to be dedicated to the writing of Monolith.
This is the best chance of getting it over the line I've had in over three year. If I don't succeed this time I really will deserve to lose all my readers!