this post was submitted on 18 Feb 2024
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I maintain some software, and Nix is by far the hardest to deal with. To package config files are relatively complex, and to submit a package you have to download the entire Nix repo, which is huge. Getting a package to build correctly can be a challenge.
It's a pretty large ask for software contributors, who may have to iteract with a half dozen different distros. Now, you could say, leave it to the distro people to do the packaging, but it remains a barrier for entry and is by nature exclusive.
I don't use NixOS, so I have little motivation to stay conversant with Nix and, frankly, it's so demanding I don't bother anymore. I can make RPM, deb, and aur packages trivially, and without having to hold Gb of some package repo (which I otherwise don't use) on my disk.
git clone --depth 1will clone a git repo without older stuff. Without this, the nixpkgs git repo is like 13-14 GB, but with a depth of 1, it's only 200 mb.If you maintain upstream software and do not have an interest in learning and using Nix, please don't put the burden of packaging software in Nix onto yourself. Nobody in their right mind would expect you to package anything for a dozen distros; that's not how distros are supposed to work.
Leave it to someone who is interested to package your software in Nixpkgs. Your "job" is to make your software better and provide a sane way to build your software that packagers can rely on (i.e. no assumptions where things are or are supposed to go, document your dependencies and build processes).
If you do want to go the extra mile, offer your help in assisting packaging in the appropriate channels. You know the technical details of your software and Nix users how Nix packaging works but the reverse mostly isn't true, so cross-pollination can be super helpful here.
Even just things like testing that your software works as you expect when the packaging is touched in some way (i.e. an update) is incredibly helpful. (If saw a package update PR with the upstream maintainer's approval stating that it works as they expect, I'd merge immediately.)
If packaging for Nix is a burden for you, please just open an issue on Nixpkgs with links to your packaging/build documentation and let someone else do it for you.
As a Nixpkgs committer, I'd much rather have someone invested in Nix build and maintain a package than an upstream maintainer who somehow feels obligated to do so but has no experience or actual interest as the former is more likely to produce good code and keep maintaining the package.
Sure. My point is that it's trivial to make and test packages for many distributions; it is harder to do so for Nix. It tends to get your software out there and used faster if you bootstrap the packaging - immediately, if you have an AUR account.
IMHO, Nix is unreasonably harder. There are frequently small projects that don't get packaged for most distros. When I encounter these, I have a couple of options:
The third option is preferrable to the others, for a variety of reasons, and it's easy on most distros. On Arch, I might submit the package to AUR, but I'll often just make a -git package and install it locally.
It's fine to provide some sort of "official" binary package in some common format such as a Flatpak, Appimage or even just a plain old tarball but trying to package something for many different distros is insanity IMHO.
It all depends on what you're used to and how cursed the project's build process is.
For sane build systems, I find it much easier to package for Nix now that I know its intricacies. I wouldn't want to go back to weirdly sourced bash scripts without proper structured data types or any sort of abstractions or mechanism for extremely common patterns.
It's the same for NixOS. When I encounter something that somehow isn't packaged in Nixpkgs yet, I usually start out by simply packaging it in my local nixpkgs checkout.
There are handy tools to generate the little boilerplate there is and, if the package uses a reasonably standard build system, it usually only takes adding the dependencies and one or two tweaks to have a working package that is then also ready for submission to upstream Nixpkgs.