I usually don't grow in the summer due to the heat and I'm struggling to get my ass in gear for this winter. I usually have about 4 varieties I grow, blue oysters, pinks, lion's mane and pioppinos.
Mean like the bags come as a kit with the grow media already inoculated?
I've not yet seen that compostable plastics are actually safe for the environment yet, although they might be slightly better since they can break down given the correct environment (not naturally, unless bio-degradable). I suspect anything with a co-polymer to be dangerous in various ways.
This article seems to indicate so atleast, but I would like to see more studies.
https://www.sciencedirect.com/science/article/pii/S0048969725017565