You can use the Scorpion protocol that I made up if you want optional TLS and including the file size (and if you don't like the Han unification). You can use Spartan protocol if you want the Gemini file format (with one difference) but a different protocol that does not use TLS (although it is not the same as just Gemini without TLS, but works significantly differently), although if you have any dynamic files then you might need to handle them differently for Spartan than Gemini.