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108. *nix just means operating systems that are like the old workhorse Unix. Some examples include Linux, FreeBSD, and Mac OS X (its kernel, Darwin, is based on BSD). The main relation between *nix and Ruby is just a pragmatic one; most Ruby developers seem to prefer to work on Unix-like OSes (typically Linux or Mac OS X).
Apr 5, 2022 · Components are installed from a set of Nix expressions that tell Nix how to build those packages, including, if necessary, their dependencies. There is a collection of Nix expressions called the Nixpkgs package collection that contains packages ranging from basic development stuff such as GCC and Glibc, to end-user applications like Mozilla Firefox.
May 20, 2017 · 79. First of all, default.nix and shell.nix have special meanings in Nix tool, but release.nix is a convenience one. Next, default.nix is used as a default file when running nix-build, and shell.nix is used as a default file when running nix-shell. Just like you said. Next, default.nix isn't used only for nix-build.
Aug 20, 2018 · Since then, Nix has started to support systemd unit installations and since Catalina, macOS installations have become more complex too. This answer is not official documentation. The "curl | sh" installer for Nix on Linux does not install the Nix daemon, so the only things to delete are /nix, the line in ~/.profile and ~/.nix-profile.
Apr 6, 2016 · Edit: To ensure configuration.nix is built from the latest unstable channel just set the value of nixpkgs as in the answer from @iElectric and Nix will use the expressions contained at that URL whenever it evaluates configuration.nix.
Nix is a hermetic build system, meaning that all inputs must be declared so they can all be tracked. You could pull in Nixpkgs' set of certificate authority certificates, being pkgs.cacert: # CAREFUL, read on!
Mar 31, 2018 · 1. It creates a new derivation, which when built will create/construct a new directory in the nix store. I believe that it generally works like this: NOTE: args below is the attrset passed to the buildEnv function. Create a new directory (let's call it out) in the nix store. For each drv (e.g. path to a derivation, or some other directory, in ...
When (like in your question), I'm looking for a non-top-level package, I use the auto-completion of nix repl. Run it with. nix repl '<nixpkgs>'. Now type for instance coqPackages and use auto-complete to see all the available versions. Type coqPackages_8_6. and use auto-complete to see all the available packages in this set.
Dec 17, 2022 · 1. nix show-derivation expects its input as command line arguments. Lacking any inputs, it seems to default to looking up a flake. This would work, if it wasn't for *.drv producing too many results on my store: $ nix show-derivation --extra-experimental-features nix-command $(ls /nix/store/*.drv | head -n 1) bash: /run/current-system/sw/bin/ls ...
Jan 16, 2023 · In order to see if I've really understood how nix flake works (I haven't) I am trying to write a flake.nix so that I only have to write. nix develop There is a field devShells (not devShell) in output in flake.nix in this repo. This is a collection of shells defined in configuration.nix. My flake.nix:
