- Feb 2021
subscribes you to a channel that always contains that latest version of the Nix Packages collection.
That is a misleading statement. The latest version is where the
masterbranch points, isn't it?
So a channel points to a Nixpkgs commit (on a branch named after the channel) where all packages inside are deemed stable, and all packages are built to have available binary substitutes by a (hydra) build farm.
A Nix channel is just a URL that points to a place that contains a set of Nix expressions and a manifest.