Hi Daniel!
I had no idea GUL's were an international thing! Thank you so much for reaching out.
I would be okay for taking part in that event of yours under the form of a presentation of your choosing. A workshop might be a bit tricky to do, but it is possible as well depending on how complex it needs to be.
Unfortunately I don't know any Spanish (I'm french), but I can get the presentation translated by people on the forums and sent to you
I would definitely do it in English, though.
Regards,
Stan