Build container images with Fleet (vs Pipelines)

Rancher Pipelines offered the ability to build images from source and deploy them. Can the same be achieved with Fleet? Seems pipelines is being deprecated in favor of fleet:

As of Rancher v2.5, Git-based deployment pipelines are now recommended to be handled with Rancher Continuous Delivery powered by Fleet, available in Cluster Explorer.

With pipelines, we could build a docker image, push it to an internal registry and then deploy it in one go. I‘m struggling to understand how this is possible with Fleet. It seems to only handle the deployment part and not building and pushing images. Can someone point me in the right direction?

c.c. @vincent