Really? What did you not like about Helix that you get from Nano? (No judgement, I'm just curious!)
I don't have anything against Nano, but for something I use every day, I'd really miss go-to-definition, and being able to jump between sections of text quickly.
It’s too bad nano doesn’t support LSP [1], it makes it trivial to get IDE-level support for almost all programming languages with one simple JSON-RPC integration.
1: https://microsoft.github.io/language-server-protocol/