GUYS GUESS WHAT?

I THINK I FOUND A WAY TO LOAD .JAR FILES FOR EAGLERCRAFT, just follow this tutorial https://youtu.be/i0wYp_smH2Q?si=44Ew_VVdiIdT2IRJ

i havent tested yet but when I get to my pc I will.

can someone test this out with sodium or iris? the .jar version for 1.8.8?