I just wanted to do some Icarus runs but I wanted to know if I can use the mod for Base categories and category extensions.

(Mod: https://github.com/DuncanRuns/Icarus-Mod/releases )

I found it on the "MINECRAFT: DATAPACK & MODDED CE" resources tab.

I'm confused what you mean? There's a pogloot icarus category for that

I was asking if I had to use the datapack or if I could use the mod.

Ah, I'm pretty sure you can use the data pack (you can for irsg) I know you can use the mod.

OK, Thanks!