Home Services (GNU Guix 参考手册)

13.3 Home Services

A home service is not necessarily something that has a daemon and is managed by Shepherd (see Jump Start in The GNU Shepherd Manual), in most cases it doesn’t. It’s a simple building block of the home environment, often declaring a set of packages to be installed in the home environment profile, a set of config files to be symlinked into XDG_CONFIG_HOME (~/.config by default), and environment variables to be set by a login shell.

There is a service extension mechanism (see 合成服务) which allows home services to extend other home services and utilize capabilities they provide; for example: declare mcron jobs (see GNU Mcron) by extending Scheduled User’s Job Execution; declare daemons by extending Managing User Daemons; add commands, which will be invoked on by the Bash by extending home-bash-service-type.

A good way to discover available home services is using the guix home search command (see 调用guix home). After the required home services are found, include its module with the use-modules form (see Using Guile Modules in The GNU Guile Reference Manual), or the #:use-modules directive (see Creating Guile Modules in The GNU Guile Reference Manual) and declare a home service using the service function, or extend a service type by declaring a new service with the simple-service procedure from (gnu services).