A few quick notes for other folks who are geoblocking the UK. I just set up a basic geoblock with Nginx on Debian. This is all stuff you can piece together, but the Maxmind and Nginx docs are a little vague about the details, so I figure it’s worth an actual writeup. My Nginx expertise is ~15 years out of date, so this might not be The Best Way to do things. YMMV.