Implementing endgame.021.gg came with a whole ensemble of interesting technical problems to solve, with one of them requiring a customized fork of the optimized seaport core contracts. 

Check out my post to see how I did it:

Implementing endgame.021.gg came with a whole ensemble of interesting technical problems to solve, with one of them requiring a customized fork of the optimized seaport core contracts. 

Check out my post to see how I did it:
https://paragraph.xyz/@021/how-endgame-forked-seaport-to-plug-in-to-better-order-data