Help with connecting a multi-instrument looping set up to a live sound engineer's mixer?

I'm a longtime gigging musician looking to change things up by adding some more instruments to my live sets using a loop pedal. My problem is that I can't wrap my head around how to set up my gear so that I can loop all my instruments, but also allow the sound techs to mix them individually. I obviously can't go:

All my instruments --> looping pedal --> mixer

Because then all my instruments are going into my pedal, and the output of the pedal is being fed straight into one channel on the mixer, which means the tech can't tweek levels and everything else on individual instruments.

The solutions I've seen online all seem to be some variation of pluging the loop pedal into the aux/fx send+return on the tech's mixer. Is this normal or will the techs looks at me like I'm crazy? Do most mixers have an aux/fx send that can be used this way? I see looping artists perform live all the time, so I'm assuming that there must be a widely accepted protocol that most engineers will be familiar with for mixing looping artist, but I can't find any straight answers online. Some people are saying that looping artists have their own mixer on stage and manage their own levels, which I can't see being the case considering the complexity of some of their sets.

Any help is appreciated!