Install Nginx, add autoindex on; to the default site config, throw the files into /var/www/html or whatever default folder it uses, and delete the default index.html file. If you need to do it via Docker then use the official Nginx image https://hub.docker.com/_/nginx

You could also just share the files via SMB. Easy to use on a PC - you could configure their computers to mount the share as a network drive on boot (e.g. R:, for recipes). Not sure about other phones but the built-in files app on my Galaxy S25 Ultra supports SMB too.

A web server with directory listing enabled would work fine for that.

Caddy has this feature built-in. It looks nice too.

recipes.local {
	root * /srv
	file_server
}

https://caddyserver.com/docs/caddyfile/directives/file_server

There's also File Browser.

Copy files and do a

python3 -m http.server

Very simple and does the job.

Just use the directory listing of your favourite web server. You have a HTTP read only view of a directory and all of its content. If you self host likely you have already a reverse proxy, so it is just matter of updating its configuration. I'm sure it is supported by Apache, Nginx, LightHttpd, and Caddy. But I would expect every webserver supports it. Caddy is the easiest to use if you need to start from scratch.

Not quite what you want, but I am a huge fan of mealie.

I use dufs. Copyparty seems good too.

Directory Lister is a perfect fit for this. Docker instructions here.

Disclaimer: I am the author of Directory Lister. Feel free to reach out with questions.

sftpgo

sandstorm is dead simple to host and crazy secure.

it handles user accounts for you and there are lots of apps to serve files or track text files.

it rocks.