I just finished creating a bindings file for the Donner Mk25 midi interface (cheap amazon option) so that the transport controls on it can be used. There are a few caveats (the buttons on the interface have to be configured on non-latching mode and its CC numbers modified, plus record-arming cannot be cancelled) but I am happy with it.
How would I go about sharing it? Is there any wiki where it can be contributed?