I’ve added a new page to the switch2osm guide: “Manually building a tile server (Debian 11)”. The Debian developers have worked to include the required software inside Debian 11, so there’s actually less setup work needed than in previous versions.

Debian 11 has not yet been released; it’s still “testing”, so there may be minor changes along the path to release. Also, there’s currently a temporary problem with the Natural Earth download site that requires a workaround, but that’s documented in the guide. When that is resolved I’ll update the notes.

I’ve not yet linked the new page into the menus because I want to give people a chance to test it and identify any problems first. Once that’s happened, I’ll add it to the “Serving Tiles” menu.