While I agree that the capability is technically practical, I feel there are plenty of good file system watcher based web servers. I can't say at all what level of effort goes into maintaining this feature, but in my opinion is is bloat that can be handled by other tools.
an experiment bringing together Hugo and Internet Archive to provide a rock solid, lightweight and ethical solution to serve audio files.
The main objective is to share loads of audio files (hundreds of gigabytes are fine) without the hassle of Youtube / Dropbox / Soundcloud etc
Contact: https://audio.phoni.es/contact/