Hello Evgeny, thanks very much for pointing me in the right direction.
There are lots of tools out there that were made for exactly that purpose (I wrote and support one myself, but I’m not saying mine is the best there is), and maintainers of those tools are supposedly committed to keep track of API changes and such so that those tools keep being functional.
I did now find rclone which I got to work but I am curious which tool you are supporting.