[jeanpralo]

what is the difference with docker-compose here ?

[ianpurton]

It's supported by your IDE in this case VSCode.

So it's a docker-compose that runs up in your IDE.

Then you have all your tools ready to go i.e. postgres.

Most importantly you can share it with your team.

[pamelafox]

There's an additional devcontainer.json file that specifies editor configuration, like extensions, startup commands, extension settings, etc.