Mon Aug 27 21:42:06 EDT 2018

panda setup

# Get a list of channels.
$ nix-channel --list
nixpkgs https://nixos.org/channels/nixpkgs-unstable

# Add and remove channels (doesn't update)
$ nix-channel --remove nixpkgs
$ nix-channel --add https://nixos.org/channels/nixos-18.03 nixpkgs

# Download current version of channel.
$ nix-channel --update

# Update all packages.
$ nix-env -u '*'

So it should now be the same as gwtest?  No.  Doing the same there.

So, to pin everything, create a custom channel?

I still don't understand the difference between a direct link to
nixpkgs tree in a default.nix file, and a channel.


It appears that the <nixpkgs> is the entry name in the nix-channel list.