Is it possible to build an image for one platform that copies files from a image built for a different platform?

[josh-hemphill]

I've got multi-stage container builds that build all the pre-requisites for our build environment, and we have flags to use cross-compilation to build for arm and arm64.
We also have a dockerfile for doing final builds that other people use, but I'm not sure if it's possible for use to have that final dockerfile that's more platform agnostic build into properly tagged images for each native platform only changing what files it pulls from our x64-only pre-req image.

[josh-hemphill]

I think I've found an answer here: https://www.docker.com/blog/faster-multi-platform-builds-dockerfile-cross-compilation-guide/