idea: multi-stage docker build

https://docs.docker.com/develop/develop-images/multistage-build/

there is a way, to have multiple stages for docker-build. e.g.
1st to build, require gcc
2nd to run, needs just the binary from (1)

with that, the docker-files would become smaller.
who needs the g++, make, cmake, ... later within the docker-image ?