I don’t know exactly how it’s implemented as I am a PS4 player, but a few thoughts:
1: For god’s sake, don’t release it simultaneously with the fractional coin prices. In order to price it at fair levels, we need to see how the market adjusts to fractional coin prices. For example, if you set it to pay 1c per rock, we’d never see rocks sold again to request baskets, since their value is probably more like 0.1c each, and the devs would never know the fractional coin values since they wouldn’t have the data. Another example, people pay 1c for both prime and regular meat. Obviously regular meat is worth less, but how much less? We need to see how fractional coin pricing plays out before fair chrysomint prices can be determined.
2. It should pay fractional coins for junk. Again, probably less than 0.1c per rock block, for example.
3. It should be expensive to craft - gems, rift, gold etc. Every single player shouldn’t have one on day 1, though they should be able to use their friends’ (see point 4)
4. It should be usable by any player unless locked, like door behavior. This would allow shopkeepers and hub owners to place them in public locations, encouraging farmers to still visit their neighborhood areas and run into people at the ol’ watering hole.