I can't say a thing about efficiency, but for maintainability, I have to disagree. This seems to be a rust library, and for maintaining that, you'd need to write a program, compile it every time some updates come by, rerun the recompiled program, ...

With the parent comment example, all you need is nginx, available as a package on all distros, and a single static config file. With an auto-updating package manager and a service manager, one never needs to write anything else apart from that static config file.

Or did you mean something else with "actually maintainable"?