Small Septic System For Shop?

I'm trying to look up the approach to adding a sink/standup shower and toilet in a shop that's too far away from the house to hook in to the septic system. Anyone have experience with this? Are there mini septic systems offered?

Maybe I'm Googling the wrong thing. All that keeps coming up are do it yourself 55 gallon drum septic system instructions add Saniflo macerator systems. Not sure if either of those are right for me. I'm in Prairieville for what it's worth.

I'll probably get on the phone and call some septic contractor next week. Just hoping someone on the OB knows because I'm researching it now.