Ask HN: What are you working on? (February 2025)

I discovered the world of specialty coffee last year, fell into the rabbit hole and am now building a coffee journal and bean tracking app called Coffee Library (https://apps.apple.com/us/app/coffee-library/id6664071528?uo...).

Probably the best way to develop your taste and understand the spectrum of different coffees available is to do comparative tasting aka try a small number of coffees in parallel to compare and contrast. I was having trouble finding tasting sets so I started freezing a little portion of every coffee bag I bought to create a collection for doing these tastings at home.

I needed something to keep track of them all (as well as my tasting notes in general) so instead of using a spreadsheet I built a full app for it. The app supports NFC-tagged containers which I've found to make my workflow a whole lot easier.

I also set up an online store to sell the NFC-equipped single-dosing tubes: https://store.coffeelibrary.app Planning on adding more containers that work well with the app in the future.

This is awesome. I was considering building something very similar, but great to see it already exists.

How are you building the app? The interface makes me think it's native SwiftUI?