More fertile ground for kickstarting this kind of grassroots change would be somewhere with a lower barrier of entry. Imagine homebrewers buying and selling from each other without ever involving fiat.

If you got better beer out of that arrangement than you can get at the liquor store... That would be and indicator that such dedicated sub-economies can work without an external hype cycle driving them.

Then you could try something more ambitious like VPN service, that way your employees can at least buy beer with that portion of their paychecks (and the brewers can similarly buy VPN serice to avoid interference from the local government, which they might expect if they're "selling" alcohol).