Hey all! Quick question: Is it possible to build the image to use in a docker_environment in your repo? No dependencies argument as far as I can find.

No it's not supported out of the box. You'll have to build it first, push it to some docker registry and then you can use it. There is an open issue on GitHub.

Thank you for your quick answer!

There's a GitHub issue to have you wire in a Pants-built image

https://github.com/pantsbuild/pants/issues/17714 if you want something to follow