If you want to use devel.one, but want to change any detail, just contact us. We can discuss together whether a change would make sense for all customers, or whether we can produce a special version.
In principle, we are of course prepared - in return for an expense allowance - to implement changes especially for you.
You can start the discussion with us via sales[at]softdevel.com. Please tell us your position so that we can prepare ourselves.