My simple uses cases:

  - Write repetitive stuff across any application, eg. my email is pretty long, so I expand it with a short ':e' trigger)
  - Expand boring code, eg. functional programming functions to snap into pipelines
  - Drop emojis here and there (https://hub.espanso.org/all-emojis)
  - Write accented letters not available on the keyboard (I use a US keyboard, but I need to write Italian on a daily basis)
  - Drop lorem ipsum paragraphs

With some setup, the config is synced between my personal and work Macbooks. I think I will also use it for email templating soon.