Dex development tutorial

can i get some guide about the dex tutorial
where can i watch , read docs and learn more about extending the functionalities of dex like adding settings?

basic dex

settings features

I already finished that tutorial
is there any other tutorial or documentation i can check to create more advanced dex/swap
like creating option for slippage and gas price?

for slippage you may be able to set it with 1Inch plugin, about gas price, usually you donโ€™t have to set that from your application, MetaMask will set a value and the user can change that value from MetaMask