this post was submitted on 31 Jul 2023
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I switched from Nixos to void Linux. Here's my experience so far. (sh.itjust.works)
submitted 1 year ago* (last edited 1 year ago) by 7ai@sh.itjust.works to c/linux@lemmy.ml
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I hopped from arch (2010-2019) to Nixos (2019-2023). I had my issues with it but being a functional programmer, I really liked the declarative style of configuring your OS. That was until last week. I decided to try out void Linux (musl). I'm happy with it so far.

Why did I switch?

  1. Nix is extremely slow and data intensive (compared to xbps). I mean sometimes 100-1000x or more. I know it is not a fair comparison because nix is doing much more. Even for small tweaks or dependency / toolchain update it'll download/rebuild all packages. This would mean 3-10GB (or more) download on Nixos for something that is a few KB or MB on xbps.

  2. Everything is noticeably slower. My system used way more CPU and Ram even during idle. CPU was at 1-3% during idle and my battery life was 2 to 3.5h. Xfce idle ram usage was 1.5 GB on Nixos. On Void it's around 0.5GB. I easily get 5-7h of battery life for my normal usage. It is 10h-12h if I am reading an ebook.

Nix disables a lot of compiler optimisations apparently for reproducibility. Maybe this is the reason?

  1. Just a lot of random bugs. Firefox would sometimes leak memory and hang. I have only 8 GB of ram. WiFi reconnecting all the time randomly. No such issues so far with void.

  2. Of course the abstractions and the language have a learning curve. It's harder for a beginner to package or do something which is not already exposed as an option. (This wasn't a big issue for me most of the time.)

For now, I'll enjoy the speed and simplicity of void. It has less packages compared to nix but I have flatpak if needed. So far, I had to install only Android studio with it.

My verdict is to use Nixos for servers and shared dev environments. For desktop it's probably not suitable for most.

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[–] mrh@mander.xyz 1 points 1 year ago* (last edited 9 months ago)

edit: I do feel norawibb's point, the slippery mutability of Void is something I am a lot less comfortable with than I used to be. Apparently Guix has spoiled me.

[–] Euphoma@lemmy.ml 0 points 1 year ago (1 children)

In my experience, doing small changes to your nix config when using nix flakes seems to be faster. For me it only rebuilds everything when I run nix flake update before running sudo nixos-rebuild switch so it seems faster because it only does the thing that I changed instead of updating everything.

[–] 7ai@sh.itjust.works 0 points 1 year ago (1 children)

Yeah. Most small changes will not rebuild everything. It's just the core dependency updates that are most expensive. Like say openssl got a minor update. Now every package that depends on it needs to be rebuilt and rehashed because of the way nix store works.

[–] chayleaf@lemmy.ml 1 points 11 months ago

yeah that's currently in the works (ca-derivations)