Translations:Nix (package manager)/1/en: Difference between revisions
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{{Disambiguation|message=This article is about the Nix package manager. Not to be confused with the [[Nix ecosystem]], the [[Nix (language)|Nix language]] or the [[Nix (command)|Nix command]].}} | |||
Nix is a package manager and build system that parses reproducible build instructions specified in the [[Nix Expression Language]], a pure functional language with lazy evaluation. Nix expressions are pure functions<ref>Values cannot change during computation. Functions always produce the same output if their input does not change. </ref>taking dependencies as arguments and producing a ''[[Derivations|derivation]]'' specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the [[#Nix store|nix store]]) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating [https://en.wikipedia.org/wiki/Dependency_hell dependency hell]. | Nix is a package manager and build system that parses reproducible build instructions specified in the [[Nix Expression Language]], a pure functional language with lazy evaluation. Nix expressions are pure functions<ref>Values cannot change during computation. Functions always produce the same output if their input does not change. </ref>taking dependencies as arguments and producing a ''[[Derivations|derivation]]'' specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the [[#Nix store|nix store]]) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating [https://en.wikipedia.org/wiki/Dependency_hell dependency hell]. | ||
Latest revision as of 15:17, 28 August 2025
Introduction to Nix
Fundamental concepts
Tools and applications
⤧︎
Disambiguation: This article is about the Nix package manager. Not to be confused with the Nix ecosystem, the Nix language or the Nix command.
Nix is a package manager and build system that parses reproducible build instructions specified in the Nix Expression Language, a pure functional language with lazy evaluation. Nix expressions are pure functions[1]taking dependencies as arguments and producing a derivation specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the nix store) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating dependency hell.
- ↑ Values cannot change during computation. Functions always produce the same output if their input does not change.