>>140
As you can see, with the try_files directive, Nginx will first search for the file to serve it without calling Scheme and if it can't find the resource asked, the request is passed to SchemeBBS. Threads, index and thread list are generated on demand and not after posting, once again because of performance considerations. The modest webapp runs on the good old academic MIT Scheme, not Scala or node.js. I didn't want to let the poster wait with a "That was VIP quality/here's a candle flag on the Moon" message trick. Users don't like to wait.
Right now all of the threads on https://textboard.org/prog/list/ are being linked to incorrectly. This seems to be caused by the last "/" in the URL
Indeed, it shouldn't be hard to fix. It's funny nobody noticed earlier, thanks.