Im not one of the main devs so im sure one of them can give more details and responses but currently all development and tasks planned is public on the github org https://github.com/orgs/sublinks/projects/1
Usually people will throw ideas in and then they will be looked at by the team and if its wanted it gets put into the relevant milestone
Im on the frontend side so not Java but if anyone wants me to help them get started with frontend / want me to mentor them feel free to reach out