Example of how to run yarn run prod using yarn package from fnm:
docker exec -i -w /home/of/your/project docker-container-name bash -c "/root/.fnm/fnm exec --using 12 yarn run production"
Example of how to run yarn run prod using yarn package from fnm:
docker exec -i -w /home/of/your/project docker-container-name bash -c "/root/.fnm/fnm exec --using 12 yarn run production"