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Comment by solatic | Hacker News Reader

> You can just silently use it and enjoy the convenience for the declarative parts of your setup, with no detriment to your ability to run the imperative, ad-hoc setup scripts that your company requires.

That's the kicker though. Nix's benefits come from the guarantees it can make based on its integration with the rest of the Nix-controlled ecosystem. Without the control, you don't get the guarantees, and you lose the raison d'être. You need to actively avoid the "value-added" parts (e.g. package options) because latest Homebrew upstream may give you a version that exposes an option that is not yet exposed by the package options, and you can't patch the package with Nix because you're not using a Nix-based package.

Chezmoi is declarative. The templates give me generated configuration. I can rollback anytime I want by reverting Git commits and calling chezmoi apply. It works well within its less-ambitious goals (compared to Nix).

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If you’re using Nix and HM to manage a configuration file for a package that isn’t managed by Nix and HM, you don’t get the same guarantees, sure.

But you also don’t get them at all with Chezmoi, right?

Surely having these guarantees for some packages beats having it for none? In practice _most_ packages you’ll want to use are already in Nixpkgs, and kept up to date.

> You need to actively avoid the "value-added" parts (e.g. package options) because latest Homebrew upstream may give you a version that exposes an option that is not yet exposed by the package options, and you can't patch the package with Nix because you're not using a Nix-based package.

You mean build-time options?

You can usually override the version number/URL in your own configuration to get the new version earlier. But new versions land in nixpkgs-unstable with about the same cadence as Homebrew anyway.

Same thing with runtime options. Want `programs.foo.enableNewThing` but it’s not in HM yet? You can just define that option in your own configuration, no need to stop using the value-added module nor wait for HM.

> Surely having these guarantees for some packages beats having it for none? > You can just define that option in your own configuration

This is exactly what I'm talking about. Once you have Nix on your system, it infects everything. You want to let it control everything, because that is where its power is. Your life would be so much easier if you could let it control even more, like the stuff you share with your team. It's the siren call. And then you find yourself pitching it to your team, and then you inevitably fail to pitch it, because you ramped up to it over months and it's just impossible to get anybody else ramped up to Nix that quickly.

It's guaranteed heartbreak every time and I got sick of it.

> Your life would be so much easier if you could let it control even more, like the stuff you share with your team. It's the siren call.

You could always, you know, not do this. Your heart will be intact.

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