> For the complete documentation index, see [llms.txt](https://perena.gitbook.io/perena/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://perena.gitbook.io/perena/protocol/usd-technical-design.md).

# USD\* Technical Design

- [Conceptual Overview](https://perena.gitbook.io/perena/protocol/usd-technical-design/conceptual-overview.md)
- [Core Program Architecture](https://perena.gitbook.io/perena/protocol/usd-technical-design/core-program-architecture.md)
- [Operation Flows](https://perena.gitbook.io/perena/protocol/usd-technical-design/core-program-architecture/operation-flows.md): The program operates through two distinct instruction flows: administrative setup and configuration operations, and user-facing mint/burn operations.
- [Administrative Operations](https://perena.gitbook.io/perena/protocol/usd-technical-design/core-program-architecture/administrative-operations.md)
- [User Operation](https://perena.gitbook.io/perena/protocol/usd-technical-design/core-program-architecture/user-operation.md)
- [Vault Types and Yield Strategies](https://perena.gitbook.io/perena/protocol/usd-technical-design/vault-types-and-yield-strategies.md)
- [Off-chain Services](https://perena.gitbook.io/perena/protocol/usd-technical-design/off-chain-services.md)
- [Development and Implementation](https://perena.gitbook.io/perena/protocol/usd-technical-design/development-and-implementation.md)