> For the complete documentation index, see [llms.txt](https://docs.defindex.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.defindex.io/advanced-documentation.md). # Advanced Documentation - [Smart Contracts Development](https://docs.defindex.io/advanced-documentation/developer-introduction.md): ⏱️ 1 min read - [What is a strategy?](https://docs.defindex.io/advanced-documentation/developer-introduction/what-is-a-strategy.md): ⏱️ 1 min read - [What is Blend Capital?](https://docs.defindex.io/advanced-documentation/developer-introduction/what-is-blend-capital.md): ⏱️ 1 min read - [Strategies APY](https://docs.defindex.io/advanced-documentation/developer-introduction/strategies-apy.md): ⏱️ 2 min read - [Building the Blend Strategy](https://docs.defindex.io/advanced-documentation/developer-introduction/03-how-to-create-a-strategy.md): ⏱️ 5 min read - [WhitePaper](https://docs.defindex.io/advanced-documentation/10-whitepaper.md): ⏱️ 2 min read - [Introduction](https://docs.defindex.io/advanced-documentation/10-whitepaper/01-introduction.md): ⏱️ 2 min read - [Core Concepts](https://docs.defindex.io/advanced-documentation/10-whitepaper/02-core-concepts.md): ⏱️ 3 min read - [The DeFindex Approach](https://docs.defindex.io/advanced-documentation/10-whitepaper/03-the-defindex-approach.md): ⏱️ 1 min read - [Smart Contracts](https://docs.defindex.io/advanced-documentation/10-whitepaper/04-contracts.md): ⏱️ 1 min read - [Vault Contract](https://docs.defindex.io/advanced-documentation/10-whitepaper/04-contracts/01-vault-contract.md): ⏱️ 13 min read - [Strategy Contract](https://docs.defindex.io/advanced-documentation/10-whitepaper/04-contracts/02-strategy-contract.md): ⏱️ 3 min read - [Zapper Contract](https://docs.defindex.io/advanced-documentation/10-whitepaper/04-contracts/02-zapper-contract.md): ⏱️ 2 min read - [Rates and APY](https://docs.defindex.io/advanced-documentation/10-whitepaper/05-rates-and-apy.md): ⏱️ 3 min read - [Strategy Examples](https://docs.defindex.io/advanced-documentation/10-whitepaper/06-strategies-examples.md): ⏱️ 1 min read - [State of the Art](https://docs.defindex.io/advanced-documentation/10-whitepaper/07-state-of-the-art.md): ⏱️ 1 min read - [Yearn Finance](https://docs.defindex.io/advanced-documentation/10-whitepaper/07-state-of-the-art/01-yearn-finance.md): ⏱️ 9 min read - [Set Protocol](https://docs.defindex.io/advanced-documentation/10-whitepaper/07-state-of-the-art/02-set-protocol.md): ⏱️ 4 min read - [Appendix](https://docs.defindex.io/advanced-documentation/10-whitepaper/08-appendix.md): ⏱️ 1 min read - [Why We Can't Swap on Deposit or Withdraw](https://docs.defindex.io/advanced-documentation/10-whitepaper/08-appendix/01-why-we-cant-swap-on-deposit-or-withdraw.md): ⏱️ 4 min read - [Risks and Audits](https://docs.defindex.io/advanced-documentation/risks-and-audits.md): ⏱️ 1 min read - [Available SDKs](https://docs.defindex.io/advanced-documentation/sdks.md): ⏱️ 1 min read - [Typescript SDK](https://docs.defindex.io/advanced-documentation/sdks/02-defindex-sdk.md): ⏱️ 3 min read - [Flutter SDK](https://docs.defindex.io/advanced-documentation/sdks/01-fluter-sdk.md): ⏱️ 2 min read