I like writing up notes of things that I’ve done, and problems that I’ve solved. These are mainly as a reminder for me, in case I need to rebuild the system or solve the same problem in the future. I used to keep these as notes on a private wiki, before deciding that there’s really no good reason to keep them private: they might be of use to others. So now, often if not always, I publish my write up. Why do I tell you this? Because I think that this context - my personal, private notes ...