# Documentation of how to set up a Nix channel?

**URL:** https://discourse.nixos.org/t/documentation-of-how-to-set-up-a-nix-channel/5781
**Category:** Help
**Created:** [February 6, 2020, 10:53am UTC](https://discourse.nixos.org/t/documentation-of-how-to-set-up-a-nix-channel/5781 "2020-02-06T10:53:43Z")
**Posts on this page:** 1
**Showing post:** 21

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### Author: ![magthe](https://discourse.nixos.org/user_avatar/discourse.nixos.org/magthe/32/1885_2.png) [@magthe](https://discourse.nixos.org/u/magthe)
#### Post date: [February 19, 2020, 7:30pm UTC](https://discourse.nixos.org/t/documentation-of-how-to-set-up-a-nix-channel/5781/21 "2020-02-19T19:30:35Z")

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Ah, that was the missing step. Now I feel stupid 🤦‍♂️

There seems to be no way around downloading about 120 packages just to find out that nothing needs to be built. I guess the solution to that is `nix-collect-garbage -d` 🤔

Thanks for the help!

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