I feel that Reason could really benefit from an open-source project that can also serve as a “reference project/app”. I’m thinking, what the Telescope project (now VulcanJS) was for Meteor community, we could benefit from something like that for the Reason community.
In that spirit, what problem would you choose to solve if you wanted to build something useful that solved a real problem, with ReasonML? I’m imagining something using React/GraphQL/Apollo, but it could certainly go beyond those technologies.