

Read-only, or the ability to edit filenames & upload files?
Read only: as per other answers here, basically any HTTP server. The easiest one I know would be darkhttpd, because it requires no config files and can be run without root.
Read write: I like WFM https://github.com/tenox7/wfm






PSA: Perfect dark (original n64) has a community-made PC port that’s beyond excellent.
https://github.com/fgsfdsfgs/perfect_dark
I hated the original because the low framerate gave me bad motion sickness. The PC port is like magic by comparison.