Super @borja! There is no limit to the number of people that can get involved. There is no ‘too many’… we’ll just divide and conquer. Can we sign you up then, to help a hand here and there (note: you can click the poll to reflect that)?
PS. Regarding location. There is alread a Location field in your profile and I added a Timezone and Github field yesterday. See for more information the 2nd post in: Community position statement, contribution guidelines, forum improvements
Participants will be mentioned by username in the respective campaign documents, and we can add a location/timezone there, to have it all in easy view in one list.