cc @FrantzLD - could you expound a bit?
Jason Hattrick-Simpers brought up the idea of using a corkscrew mechanism, similar to an auger-based mechanism (mentioned in Accurate powder dispensing for chemistry and materials science applications)
Apparently called “auger valves” (https://www.eetdispensing.com/dispensing/dispensing-valves/av200-auger-valve-and-controller/)