# Main Concepts

- [Roles and Responsibilities](/main-concepts/roles-and-responsibilities.md)
- [Admin](/main-concepts/roles-and-responsibilities/admin.md)
- [JoinPart Agents](/main-concepts/roles-and-responsibilities/joinpart-agents.md)
- [Member](/main-concepts/roles-and-responsibilities/member.md)
- [Protocol Beneficiary](/main-concepts/roles-and-responsibilities/protocol-beneficiary.md)
- [Join Server](/main-concepts/join-server.md)
- [Contract Functions](/main-concepts/contract-functions.md)
- [Manage Wallets And Earnings](/main-concepts/manage-wallets-and-earnings.md)
- [Data Union Observation](/main-concepts/data-union-observation.md)
- [Add Your Own Token](/main-concepts/add-your-own-token.md)
- [Custom Modules](/main-concepts/custom-modules.md)