I heard back about the job interview today
Turns out it was only to be courteous, but they were impressed with me. Apparently I was the most honest and youngest person interviewed, and they want to create a role for me doing social media and other computer stuff since most volunteers are pensioners who don't really have the skills and experience with modern technology to do more than operate CABnet (the website the organisation uses for internal stuff). So we'll have to see where things go from here.