Are you trying to build something that will let people quickly share what they're working on, are you building something that will act as a bio for people giving talks, are you building an alternative for a CV ?
The problem for me, as a developer is, I don't have a place to show off all my stuff (like a developer portfolio). Online CVs are almost the same as were 10 years ago, filling forms about what you have done, so our point is to create an alternative for a CV, something automatically updated, with all the info that you care about and without all the pain off filling forms and repeat the same info again.
Most companies won't accept online CVs, so you'll need to have a way to convert to doc/pdf. Also CVs need to be very focused so you'll also need to allow users to curate, cut out unnecessary sections.
Thanks for your advice!