# Custom Plugin Guides

Step-by-step guides for building custom Algebra plugins — smart contracts that inject logic into pool lifecycle events such as swaps and liquidity operations.

* [Plugin Development](/algebra-integral-documentation/algebra-integral-technical-reference/guides/custom-plugins/plugin-development.md) — create a plugin from scratch using the plugin template
* [Plugin Testing](/algebra-integral-documentation/algebra-integral-technical-reference/guides/custom-plugins/plugin-testing.md) — write automated tests for your plugin with Hardhat
* [Plugin Deployment](/algebra-integral-documentation/algebra-integral-technical-reference/guides/custom-plugins/plugin-deployment.md) — deploy your plugin to a live DEX


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