These don't have a lot of documentation, but it's still important to know the basis for progressing!
- All items reset on Rebirth
- To unlock an item you must buy at least 5 of the one before it
- Items cannot be sold
- Items cannot be traded
- Items east have their own CPS values
What is listed in  are required parameters, but what is listed in () is optional
 buy (page) - Lists all the items to purchase  buy [name] (amount) - Purchases the amount of the item of choice
Each item unlocked is of a higher "level" than the previous. Lower level items are considered to be Brewer to Press, while Higher level items are considered to be Pitcher to Radio
If you want to increase the CPS of an item, try looking at the Starter and Experienced upgrades.