$ npm i -g @gauseen/gum

$ gum list

Currently used name=gauseen [email protected]
┌────────────┬─────────┬─────────────────────────┐
│ group-name │    name │                   email │
├────────────┼─────────┼─────────────────────────┤
│    global  │ gauseen │ [email protected]       │
│    user1   │ li si   │ [email protected]          │
│    user2   │ wang er │ [email protected]        │
└────────────┴─────────┴─────────────────────────┘

$ gum use user1

Currently used name=li si [email protected]

Usage: gum [options] [command]

Options:
  -V, --version               output the version number
  -h, --help                  display help for command

Commands:
  list                        List all the user config group
  set [options] <group-name>  Set one group for user config
    --name                    User name
    --email                   User email
  use [options] <group-name>  Use one group name for user config
    --global                  Git global config
  delete <group-name>         Delete one group
  help [command]              display help for command