What does HackerNews think of nickel-nix?

An experimental Nix toolkit to use nickel as a language for writing nix packages, shells and more.

Language: Nix

Have you tried https://github.com/nickel-lang/nickel-nix ?

I didn't use it yet, but looks like this supposed to do it.

These days those aren't the only options; you can also use Nickel: https://github.com/nickel-lang/nickel-nix

Which isn't fully baked, no, but here's hoping.

Undecided; see https://github.com/nickel-lang/nickel-nix for a proof-of-concept of an integration that requires making no changes to either Nickel or Nix.