If someone is looking for an alternative to a closed-source product, I don't see why another closed-source product would be the answer (according to Hashbackup'

If someone is looking for an alternative to a closed-source product, I don't see why another closed-source product would be the answer (according to Hashbackup's FAQ it won't be open-source). Usually the goal of replacing a closed-source product is to have something that you can fully control / tweak / audit ...