> For the complete documentation index, see [llms.txt](https://v3.docs.pooltogether.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v3.docs.pooltogether.com/master-1/protocol/prize-pool/custom-yield-sources.md).

# Custom Yield Sources

Create a Prize Pool that Uses a Custom Yield Source

If you would like to create a Prize Pool that generates prizes with a custom yield source, you'll need to:

1. Subclass the [Prize Pool](https://github.com/pooltogether/pooltogether-pool-contracts/blob/master/contracts/prize-pool/PrizePool.sol).
2. Implement the [Yield Source](https://github.com/pooltogether/pooltogether-pool-contracts/blob/master/contracts/prize-pool/YieldSource.sol) interface

Once the subclass is written, you'll need to deploy it.  The simplest approach will be to follow the [PoolWithMultipleWinnersBuilder](https://github.com/pooltogether/pooltogether-pool-contracts/blob/master/contracts/builders/PoolWithMultipleWinnersBuilder.sol) and create a contract that builds your custom prize pool with the appropriate strategy.