Hacker News

Favorites Setup
Comment by pmarreck | original | Nix wrote half of my debugger
[−]pmarreck · 2026-10-10 Sat 22:43 UTC · link
There is likely a mass of devs that is probably, hmmm, 10x the number of Nix devs from over a year ago, who know exactly what Nix offers and why it is cool, but couldn't be bothered to master it until AI came along and basically "solved the problem".

So I'd expect AI to rapidly accelerate Nix adoption. Hopefully, because it is amazing.

[−]p1necone · 2026-10-10 Sat 23:19 UTC · link
Yeah I tried to daily drive Nix at one point pre AI and the ergonomics were just not a good match for me - perhaps I should try it again.
[−]pmarreck · 2026-10-11 Sun 05:06 UTC · link
I promise you that it will be worth it. Try again.
[−]californical · 2026-10-11 Sun 07:36 UTC · link
It really depends on the person, for me I have my own setup script that works on both Mac and Linux, installing all of my core software using whichever method is best for each system, I basically have a csv with columns of “program” “install command Linux” and “install command Mac” and it just works.

Then all of my dotfiles are backed up, with any important other config, in a big gig repo. And all of my documents/photos/etc live on a separate hard drive which gets backed up to the cloud.

All of that to say, with the right setup nix is mostly unnecessary, and honestly the benefit of not using it is that I can wipe my system anytime and restart it with just my usual important programs ready to go. Any mess made along the way gets purged automatically in every fresh install

[−]pavo-etc · 2026-10-10 Sat 23:21 UTC · link
This is exactly me and I've fallen in love with nix
[−]cedws · 2026-10-11 Sun 00:04 UTC · link
Me too. I’ve known about Nix for a long time but resisted the idea of learning a new language just to manage my system. In retrospect, it would have been worth it, but now I don’t have to.
[−]pmarreck · 2026-10-11 Sun 05:05 UTC · link
And I understand because it took me TEN YEARS to come around.

I worked with a very forward-thinking functional programmer around 2012 and even back then she was raving about it. And of course, people thought she was a raving lunatic.

I give her credit to this day. It took me having one too many problems caused by NOT using Nix, to cause me to finally dive in.

And there's no going back. Which is what happens with the best technologies.

[−]nine_k · 2026-10-11 Sun 00:24 UTC · link
Nix is amazing in many ways, but its discoverability and transparency are sometimes very poor. Its module system is anything but lean and straightforward.

I say this as a daily user of Nix.

[−]mamcx · 2026-10-11 Sun 00:58 UTC · link
Is mainly the language. Is not just weird like APL , that insanely make sense. is weird.
[−]jeremyjh · 2026-10-11 Sun 01:27 UTC · link
I don’t find it weird compared to other functional languages.
[−]Shish2k · 2026-10-11 Sun 08:13 UTC · link
That's not the compliment that you think it is...

(I say this as somebody who deeply loves the concepts in most functional languages, and loves the concepts in nix, but recognises that the developer-experience of both is about as pleasant as reading somebody else's code-golfed perl)

[−]nine_k · 2026-10-11 Sun 05:30 UTC · link
I don't find Nix the language particularly weird. But pick an arbitrary .nix file, see a bunch of stuff passed to the derivation, and try to find out whence it comes, and what types / attributes are expected there. The only definitely working solution I know is a full-text search over the file tree.

Now compare it even to Haskell, to say nothing about e.g. Typescript.

[−]0x457 · 2026-10-11 Sun 00:38 UTC · link
Yeah, even you understand nix and make packages it was still a PITA to use sometimes. If something isn't in nixpkgs or you need a different version, it might be as easy as writting 20 lines of nix, or 2000.

Now you can just send this to agent "port dis <repo link>" and 20 minutes later you get a working package, or 20 working packages what were required for that package to work.

Fixing stuff also easy, just today for some reason my machine wouldn't wake up monitors after sleeping them, a few minutes later claude fixed my configuration. Making QuickShell things with it also easy. For years I've avoide all GUIs for networkmanager and bluetooth on linux because they all looked awful and unusable, now QuickShell things made just for me, exactly the way I wanted.

[−]Nihmie · 2026-10-11 Sun 01:16 UTC · link
Before AI, there was virtually no documentation, and there are so many ways to do any single thing that it makes it brutal to figure out what any given configuration was trying to do.

Is `nix` amazing though? Eh... if it were implemented better, it could be amazing. It's like python virtual environments or `pyproject.toml` for general software. It solves a real problem, but it does so by introducing a possibly even bigger problem.

[−]pmarreck · 2026-10-11 Sun 05:07 UTC · link
No.

it's more like, it definitively solves a problem forever, like nothing else.

It's like when you have immutable data and it permanently solves a class of problems that can result from mutable data.

It's sort of like that.

[−]jeremyjh · 2026-10-11 Sun 01:25 UTC · link
I think that ratio is possible, and certainly I’m counted among those numbers. However, it is not so much the case that I longed to use Nix and agents made it more feasible. What happened is that I wanted an agent to manage my machine’s configuration without giving it much access.

It’s not the only thing that agents have changed for me - I also went back to using neovim and tmux; partly because of how I use remote development servers but also because now I can get my setup working perfectly for me without a lot of hassle.

Open source and code managing all the things has always been a great idea but now it feels crazy to do anything else.

[−]POiNTx · 2026-10-11 Sun 01:36 UTC · link
I've been using nix before you could use AI to write ok code with it and it was a struggle knowing how to configure nix sometimes. Especially when dealing with less popular software which happens from time to time. Still stuck to it as I've felt that once it was working it was pretty amazing. But using Claude with nix is super cool. It's really good and I don't care much about the quality of my nix config at this point, it's just for me and I just want my computer to do what I want it to do and Claude can figure it out most of the time.
[−]skydhash · 2026-10-11 Sun 02:17 UTC · link
I tried using various configurations tools and to this day, unless it’s needed for a project, my strategy is “don’t bother”. When I use a program for a while, I backup the config somewhere and perhaps write a few notes, but my daily setup vary enough and last enough that I wouldn’t replicate it.

My mac setup hasn’t been replaced since 2021 or something, and it was copied from my old mac. I have a dotfiles git repo, which I drag around and have multiple branches for my daily driver. For temp setup, I just copy files and edit.

[−]unshavedyak · 2026-10-11 Sun 02:21 UTC · link
Heck i used Claude when it sucked just to ask it questions. It was wrong on 50% of the questions back then but it still was easier than randomly searching for the solutions. Claude helped unblock me when i got stuck on obtuse nix errors, foreign compilation issues, etc.

These days it's magical, but it was even a huge boon when it was barely functional. Nix just had a way of leaving me super confused and stranded.

[−]pjmlp · 2026-10-11 Sun 06:18 UTC · link
I still cannot be bothered, even after reading this article.
[−]troupo · 2026-10-11 Sun 07:54 UTC · link
I find this take baffling.

"We have this system that is so amazing that... it requires a paid subscription to an LLM provider or a $5000 GPU for most people to understand and configure".

When instead Nix could've focused on releasing flakes 10 years ago with probably the same effect. And fix issues like this: https://news.ycombinator.com/item?id=50040083

[−]clivedup · 2026-10-11 Sun 09:02 UTC · link
And yet, it matches reality.

Flake stabilisation probably hasn't gotten any easier/more likely by LLMs, but it does make it quicker for people to pickup technology.

Technology sometimes has that odd effect. (And it will apply to different technologies in different contexts at different rates.)

[−]jeltz · 2026-10-11 Sun 10:58 UTC · link
Yes, this just confirms nämy view that Nix, as it is right now, is bad.
[−]rgoulter · 2026-10-11 Sun 11:45 UTC · link
It's not so strange.

Pre-LLM: Nix is "high effort, moderate reward". The cost is: you have to learn a tool which does things apparently completely different to how other tools do things.. you have to put up with a lot of friction, pay all the pain upfront, and the benefit is that may be later it's easier to get the package again.

It's just not a practical trade-off for most developers.

With LLMs, the cost-benefit trade-off changes.

You can use this cloud provider's LLM to get you a good result. You get the benefits, and the cost is 'just' "ask the LLM to do it".

Similarly: it's easier to assess whether produced code does the right thing, than to come up with that code from scratch.

Without LLMs? The inaccessibility also comes from being a niche tool. Not many use it, so not many software projects accommodate it or consider it, and you might have to come up with workarounds yourself.

[−]riedel · 2026-10-11 Sun 10:12 UTC · link
I love the combination.

I use devenv (yet another nix flake dev environments) and opencode.

It is quite a synergy : my nix usage profits from the agent and the agent profits from being able to install just anything.

I even vibecoded a plugin for personal use that runs all bash tool calls through devenv and uses the supplied nix lsp package:

https://github.com/riedel/opencode-devenv

[−]riedel · 2026-10-11 Sun 10:26 UTC · link
Also being able to use wsl on my windows based work laptop added a lot to nixos affordance : https://nix-community.github.io/NixOS-WSL/install.html