If you want a Lua webserver, the way to go imo is Redbean.

https://redbean.dev/

Based on CosmopolitanC with incredible performance and single binary runs on any platform.

There is also MakoServer.

https://makoserver.net/

More for embedded but runs in anything and also very batteries included, like Redbean including SQLite and JSON for example.

Redbean is very fun. I built a mini Markdown-based CMS with it earlier this year: https://github.com/kevinfiol/beancms