Manual

The main source of information about installing and using NixOS is the NixOS manual. Inside a NixOS system, you can read the manual by running the command nixos-help, and you can see the list of configuration options by running man configuration.nix. You can also search the list of options online.

Mailing list

There is a mailing list, nix-dev@lists.science.uu.nl, which can be used for user and development questions and discussions. You can also browse the mailing list archives.

There is also a separate mailing list to keep track of security releases. To subscribe either visit the nix-security-announce Google Group or send an email to nix-security-announce+subscribe@googlegroups.com.

IRC

You can drop by on the IRC channel #nixos on irc.freenode.net to chat with the developers or other users.

Bugs

If you think you’ve found a bug, please report it in the Nixpkgs issue tracker (please use the label 6.topic: nixos).

Other resources

There are several other manuals:

Commercial support

For professional support, a number of consulting companies are available (sorted in alphabetical order):