+
+Tried setting up a git repository back-end for the wiki, in case the `post-update`
+hook caused the right updates to happen; it didn't. (But I do now have my wiki
+in git!)
+
+Turns out that `.../destdir/index.html` was being recreated after a web edit, or
+at least having its permissions modified, and being left without world-read
+permissions. Boa was then rightly refusing to serve the page. Adding the
+`umask 022` config option to `ikiwiki.setup` fixed everything, and all
+appears to be working fine now. --Paul.
+
+(I'm new to wiki etiquette - would it be more polite to leave these details on the
+wiki, or to remove them and only leave a short summary? Thanks. --Paul)