Hello, We at RGBDS use Mandoc for our manual pages, as well as the online documentation. I happened to notice that the "At-files" anchor under "REVERSE MODE" does not work, as it points to #At_files instead of #At-files. While we do some post-processing, none of it should affect this, as far as I'm aware, therefore I think it is a Mandoc bug. Sorry if I'm wrong on that. Thank you for your continued efforts! ~ Eldred