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 don’t have to set that from your application, MetaMask will set a value and the user can change that value from MetaMask