Is it possible to use a modpack with magma at the same time?

Hi, I was wondering whether I could use a modpack with Magma, e.g RLCraft with Magma (example plugin will be clearlagg). Thank you!

I did not mean installing server plugins with a modpack. I mean, can I install a modpack and a spigot plugin at the same time? (Use both of them together, are they compatible?)

Ok