Én most futottam bele a NixOS-be. Nekem is nagyon tetszik!
Most már nem csak programozni szeretek funkcionálisan, hanem OS-t telepíteni is ;-)
A legjobb benne, hogy deklaratívan kell megadni és immutable lesz a funkcionális (programok) része.
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Reproducible
Nix builds packages in isolation from each other. This ensures that they are reproducible and don't have undeclared dependencies, so if a package works on one machine, it will also work on another.
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Declarative
Nix makes it trivial to share development and build environments for your projects, regardless of what programming languages and tools you’re using.
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Reliable
Nix ensures that installing or upgrading one package cannot break other packages. It allows you to roll back to previous versions, and ensures that no package is in an inconsistent state during an upgrade.