I'm sick, and I'm upset about it. Just a cold, but damn I can't breath sometimes.
3 hours, pissed. Corrected info in tier 6 upgrades. Changed upgrade bar text from "/sec" to "/min", the former was used in 0 situations. Upgrade tiers unlock at upgrade number thresholds. These upgrade requirements are communicated in the UI with proper grammar. Figured out how I want to handle tea and boba capacity upgrade lists not including purchased items, did not have time to finish implementing it.