Raspberry - how to add another target platforms

[krishtekpl]

Hello,
I am trying to build an image for linux/amd64 on Rasbbery linux/arm/v7. Unfortunately I can't :(
When I check docker buildx ls, I see:

NAME/NODE    DRIVER/ENDPOINT             STATUS  PLATFORMS
mybuilder *  docker-container
  mybuilder0 unix:///var/run/docker.sock running linux/arm/v7, linux/arm/v6
default      docker
  default    default                     running linux/arm/v7, linux/arm/v6

I went through all the steps explained here: https://docs.docker.com/desktop/multi-arch/. No Idea what to do more :(

Each help is much appreciated

[tonistiigi]

docker run -it --rm --privileged tonistiigi/binfmt --install amd64 https://github.com/tonistiigi/binfmt#installing-emulators