Thanks! I've been nix curious for awhile, but lazyness has won.

1. Is there some that generates those nix comments for you?

2. For Dev environments I'm usually interested in the current stable release of whatever language I'm working in, and generally for my tools (nvim, ripgrep, those sorts of things be also on whatever is stable, is there a idiomatic way to get that? And also keep them uotodate?

Its reasonable to ignore or respond with RTFM

You are welcome. Thank you for your service.

How do I install Nix on Windows?

The +nightly syntax is a rustup proxy feature, so a distro-packaged cargo won’t even parse it. Nightly is a different compiler every day.

export RUSTC_BOOTSTRAP=1 and you wouldn't need rustup or nightly. It will work with your stable distro package.

clap = "4" and anyhow = "1" are ranges, and there’s no Cargo.lock.

you can do clap = "=4.x.x", ditto for all deps, direct and indirect.

Nightly is a different compiler every day.

Nothing about that script is fixed except its text.

Is nix finished free-standing software?