# Admin URL: https://usememos.com/docs/admin Instance administration shapes how people join and use your Memos instance. Start here to manage shared settings and accounts, and to understand how instance roles relate to Space membership and memo ownership. Manage access and registration policies, storage, notifications, and memo behavior across the instance. Understand instance and Space roles, manage accounts, and resolve memberships before removing a user. ## Choose the question you need to answer [#choose-the-question-you-need-to-answer] | If you want to know… | Start with… | | ---------------------------------------------------- | -------------------------------------------------------------------- | | How do I control registration and public access? | [Instance Settings](/docs/admin/instance-settings) | | Where do I configure uploads, email, or memo limits? | [Instance Settings](/docs/admin/instance-settings) | | What can an instance admin or a Space admin do? | [Users & Roles](/docs/admin/users-roles) | | What must I check before removing an account? | [Users & Roles](/docs/admin/users-roles#removing-access-or-accounts) | Active instance administrators can read and manage individual memos, including private and Space-only content. Collection listings still filter by audience, and administrators do not automatically become Space members. Review roles and membership together when deciding who needs access. For server configuration and sign-in setup, continue to [Configuration](/docs/configuration). For creating and using a shared workspace, see [Spaces](/docs/usage/spaces).