Guix and its package collection are updated by running guix pull
(see 调用guix pull). By default guix pull downloads and
deploys Guix itself from the official GNU Guix repository. This can be
customized by defining channels in the
~/.config/guix/channels.scm file. A channel specifies a URL and
branch of a Git repository to be deployed, and guix pull can be
instructed to pull from one or more channels. In other words, channels can
be used to customize and to extend Guix, as we will see
below. Guix is able to take into account security concerns and deal with
authenticated updates.
| • Specifying Additional Channels | 拓展软件包集合。 | |
| • Using a Custom Guix Channel | Using a customized Guix. | |
| • Replicating Guix | Running the exact same Guix. | |
| • Channel Authentication | How Guix verifies what it fetches. | |
| • Channels with Substitutes | Using channels with available substitutes. | |
| • 创建一个频道 | How to write your custom channel. | |
| • Package Modules in a Sub-directory | Specifying the channel’s package modules location. | |
| • Declaring Channel Dependencies | How to depend on other channels. | |
| • Specifying Channel Authorizations | Defining channel authors authorizations. | |
| • Primary URL | Distinguishing mirror to original. | |
| • Writing Channel News | Communicating information to channel’s users. |