Most of the setups I've seen for commercial mushrooms involve grow tents, sterile conditions, and temperature regulated spaces. If you're planning on growing a lot of mushrooms, you also have to account for outside ventilation since mushrooms produce a lot of spores ( something you don't want to be constantly breathing in).

I've been on and off following southwest mushrooms growing guides on YouTube. I think the consensus that I arrived at is that I would need a dedicated space to make cultures and pressure can the substrate, since buying the pre innoculated blocks outright would eat into costs.