(Is there a hashtag for this sort of request? Anyhooo, feel free to boost if you think your followers might have suggestions.)
@sbourne your nearest (idk for you, it might be a bit like us) Asian grocer will definitely have dried mushrooms in packets. Shelf stable just about forever.
I got our last packet at the local big chain supermarket in the Asian food section.
@sbourne @trib it kinda got me wondering. Here (Poland) you can get dried mushrooms[*] almost everywhere. Maybe not everywhere, but usually it's not a big problem to find a store where you'll be able to buy them.
But tbh, I've never thought of buying them online.
Mandatory photo.
[*] Although there are some "best before" dates, most can be stored almost indefinitely.
@trib @sbourne Kinda related. Here there's a long tradition of "mushroom hunting"
https://fungiatlas.com/mushrooms-in-poland/
Although it's not been cultivated in my family, so I don't know much about various species, therefore I don't do it on my own. I took part more than once as a member of a larger group. It is a really calming experience.
From what I've heard in the US there are some local clubs/organizations/events/tours, where you can go foraging mushrooms with help from mycophiles.