nix [JZ Wiki]

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====== Nix ======

===== Select channel =====

<code bash>
nix-channel --add https://nixos.org/channels/nixpkgs-unstable
nix-channel --update
</code>

===== Search package =====
<code bash>
nix-env -qa PACKAGE_NAME
# or use nox, install with nix-env -iA nox
nox PACKAGE_NAME
</code>

===== Install package =====
<code bash>
nix-env -i PACKAGE_NAME
</code>

===== Remove package =====
<code bash>
nix-env -e PACKAGE_NAME
# same as nix-env --uninstall PACKAGE_NAME
</code>

===== Garbage collection =====
<code bash>
nix-collect-garbage -d
</code>

===== List installed package =====
<code bash>
nix-env -q
</code>

===== Rebuild =====
<code bash>
vi /etc/nixos/configuration.nix
nixos-rebuild switch
nix-env --list-generations
</code>

**ref:**

http://nixos.org/nix/manual/#chap-quick-start

https://nixos.org/wiki/Cheatsheet

https://distrowatch.com/dwres.php?resource=package-management