The website is now large and complicated with a lot (too many!) of moving parts. This handbook section contains info for people doing annual updates, server syncing, and troggle development work.
Edit noinfo/folk.csv, adding the new year to the end of the header line, a new column, with just a comma (blank cell) for people who weren't there, a 1 for people who were there, and a -1 for people who were there but didn't go caving. Add new lines for new people, with the right number of columns.
This proces is tedious and error-prone and ripe for improvement. Adding a list of people, fro the bier book, and their aliases would be a lot better, but some way to make sure that names match with previous years would be good.