the thing with any developer, is they have a set path, or at least pretend to, and when another person is thrown in...especially in start up development, it may actually slow the process down.
the best thing in my opinion is work on learning groovy, learn it and throw a few things together yourself. try and make something simple. as soon as you can do intermediate jobs, then work harder and master those techniques.
when the game is out of pre-alpha and further along then you may be of use. best help you can do right now is learn more....at least in my opinion
Yes, that's right. As far as Unn goes, at this point I'm even hesitant to provide more support until he learns more. If a developer can't even write a simple four or five room text adventure with a handful of commands (look, drop, take, go, inventory, etc.) then in the grand scheme of things in dev terms, if dev was life, they are still a drooling baby that can't even hold their head up.
Which is not to say that less ambitious plans cannot be accomplished with less skilled developers. For example, adding new key mappings is pretty trivial if following the prescribed approach. This level of simple customization is pretty straight forward.
But beyond that, the next simplest thing is writing chat console commands... and that's not really different than writing the "look", "drop", etc. support in a simple text adventure. If that's still baffling then it will be a struggle.