That was shockingly more practical than expected! Obviously takes a long time to fill the tank but it works.

Anyone know any communities out there for this sort of pedal powered or human powered stuff?

@veganpizza69 Awesome. Reminds me of a documentary about the Amish, where this one guy used a windmill to pressurize an used train wagon for oil or liquids (round, airtight) that he had dug in, to run all kinds of air tools without him having to worry about running out of pressure for a week.