The brief
A one-off competition doesn't need to be bolted onto the main site - it needs a light, dedicated platform that can be spun up for one project and retired once it's over.
The mechanic
- Gallery - every submitted entry in one public place
- Experts - a dedicated jury page with names and credentials, which acts as a quality signal for the contest
- Partners - whoever supplied the prizes gets their own showcase
- About - rules, deadlines and entry conditions in one place
Result
A separate subdomain for the contest doesn't clutter the main foundation site and lives its own life - its own gallery, its own experts, its own partners - and can be closed or refreshed independently of the donation side.