I've decided that OddMuse Wiki is probably the best choice for what I want. The setup is insanely easy, and yet somehow I've forgotten something. I'm sure it's obvious, but maybe somebody can remind me.
The script seemed to basically work, but when I changed the data directory to be outside of /tmp/, it broke. It's a perl script, and I think that I've set permissions correctly (755) on the data directory, so I'm not sure quite what's wrong - but I'm just guessing that it might have to do with the directory structure being different when it's being executed by perl than when I'm poking around with bash.
I've tried setting the data directory to '/home/-mywebusername-/wiki' and '/home/-mywebusername-/-mydomainname.com-/wiki', and it didn't work. Is the directory structure different, or am I barking up the wrong tree?
The web server I'm on is 'lei,' I believe.