Run docker build -t <your_username>/my-private-repo .
to build your Docker image.
Run docker run <your_username>/my-private-repo
to test your Docker image locally.
Run docker push <your_username>/my-private-repo
to push your Docker image to Docker Hub.
docker buildx build -t gyarbij/dockerimg:latest .
docker buildx build --platform linux/amd64,linux/arm64/v8,linux/arm/v7 -t gyarbij/dockerimg:latest --push .
https://www.docker.com/blog/multi-arch-build-and-images-the-simple-way/