I went to Amsterdam over the weekend. The weather apps said it was gonna rain, did it fuck. I brought my puffer jacket and was almost dying from the heat until I got to the hotel room. Never had to wear it during the trip.
I mean, it’s like a fucking drug. The learning curve is steep AF but past some point, when it starts making sense, it’s just incredible. I’m currently moving my whole setup to NixOS and I’m in love.
Even when using in a basic way, I think it has one very tangible advantage: the fact that you can “compartmentalize” different aspects of your configuration.
Let’s say I set up a specific web service that I want to put behind a reverse proxy, and it uses a specific folder that doesn’t exist yet, like Navidrome which is a web-based audio player. It requires a set of adjustments of different system parts. My nix file for it looks like this:
All settings related to the service are contained in a single file. Don’t want it anymore? Comment it out from my main configuration (or whereever it’s imported from) and most traces of it are gone, the exception being the folder that was created using systemd.tmpfiles. No manually deleting the link from sites-available or editing the list of domains for my certificate. The next generation will look like the service never existed.
And in my configuration, at least the port could be changed and everything would still work – I guess there is room for improvement, but this does what I want pretty well.
Hey this is a great web server example! Instead of commenting it out to enable or disable you can actually turn it into a full module. Check out this example of a nix module. Basically, you can take your code you pasted and put it under the config set. Then create an option to enable that set of code. Now you can always have this nix file imported, but enable the option only when you need it with another declaration. Really, that’s how all the declarations work you’re just getting the nix files from github and nixpkgs.
Thanks for the answer; I do have at least one module in my config, but usually, I don’t enable or disable services like that, it was more of an example of how the configuration is split up and what the advantage of that is. In the end, if the only option is to enable the module, you’re not gaining that much if you need to import and enable it instead of just importing the configuration straight is my opinion.
I’m still learning about available references (ex config.services.navidrome.settings.Port). What resources did you find to be the best for learning that kind of thing?
Use nix repl! That stands for Read Eval Print Loop. You can evaluate a nix expression and see all the attributes inside. For example, on a non-flake system, use :l <nixpkgs/nixos> inside the repl to load the current system. Then you can hit the tab key to show whats inside of the current attribute set, make sure you have a . at the end. Then you can press enter to evaluate and see the declaration. For example when you set networking.hostName in configuration.nix you can actually find it under options.networking.hostName.value evaluating that in the repl.
Well, a lot of it is just trying stuff out, but let’s say you want to setup Navidrome because you read about it somewhere. My first step is always to go to search.nixos.org/options? and search for it, it’ll show you the options available. If you want to know how it’s implemented under the hood, press the “Declared in” link where it shows you the source code of the module, this can sometimes be helpful.
Other than that, read the wiki for examples, and remember that nix is a full language and not just a configuration, so you can keep it flexible.
Technically correct, but the settings in there are not service specific. However, if there’s something worthy of reworking it’s probably the Authelia part
I tried it, and while I was really excited about its proposition, it felt like at times any prior knowledge of Linux was a bit wasted. I also had some significant problems with needing to pin packages.
I don’t doubt that it’s a great option for many, if you’ve got the time to learn it. I’m finding myself in the position where I stick my flag to one distro and keep it there for as long as it doesn’t piss me off.
Yeah. I had a similar experience. My first successful install, following the docs, didn’t have a network stack. It turns out that the docs are not representative of what’s considered best practices at this point. I also don’t care for needing a new DSL for a single use case.
So, for me, it’s a non-starter. Fedora Atomic is meeting my needs nicely at this point. NixOS has brought some excellent ideas to the forefront and is a great match for some people. I’ll pass until I can use my JSON/YAML/TOML and the docs are useable.
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