The tools

The apps we built and still use

All four run in production on AWS and all four are opened through one GDC account. What follows is what they actually do.

Cat's Health — weight history

Cat's Health

Live
iPad-first · React + TypeScript · AWS

A household app for tracking several cats’ feeding, weight and vomiting incidents. It runs on an iPad mounted in the kitchen, so logging a meal takes one tap.

Several cats, one bowl schedule and a vet who wants numbers. The log lives on a wall-mounted iPad, weights are entered with the household in mind, and dates and times follow the app’s language rather than the browser’s.

  • Feeding log with can scanning
  • Weight history with signed deltas
  • Bilingual DE/EN date and time entry

The Recipe Book

Live
Web · Weekly meal planning · AWS

Plan a whole week of cooking from your own recipe database. Recipes come in from websites, photos, PDF files and Instagram posts and land searchable, in one place.

The database is the point: a recipe from a blog, a photo of a page from a cookbook, a PDF from a friend and an Instagram post all end up in the same searchable shape — and from there into a plan for the week.

  • Import from web, photo, PDF and Instagram
  • Searchable recipe database
  • Week planner across all seven days
The Recipe Book — week planner
Travel Planner — schedule and year calendar

Travel Planner

Live
Web · Trip planning · AWS

Plan a trip as an ordered list of stops with their nights. Every date, every total and the cost per day follow from that — it replaces the spreadsheet a decade of trips lived in.

A trip stores only its start date and its stops; arrivals, departures, totals and the calendar are computed from them, so one more night in Orlando moves everything after it. Flights, hotels, rental cars, events and restaurants sit side by side as candidates until one is picked, and whatever is still open is counted rather than guessed.

  • Dates and costs derived from stops and nights
  • Flights, hotels, cars and events compared side by side
  • Open decisions counted across every trip

Season Planner

Live
Web · NFL and college football · AWS

Follow an American football season from Germany, NFL and college both, a week at a time. Kickoffs are given in Berlin time first, and the games you mark come with a reminder before they start.

A season read week by week: every game with both kickoff times, the home field and where it is streaming, and a live score with the clock and possession while it runs. The app never calls ESPN itself — a scheduled job normalises the data into our own tables first, so the season keeps working on a day the source does not.

  • Kickoffs in Berlin and Eastern time
  • Watchlist with a reminder before kickoff
  • Live score, clock and possession
Season Planner — the season schedule
Access

GDC Tools Manager

Registration and sign-in run through the GDC Tools Manager. It holds your account, your household and which tools you may open.

  1. 01 One account for every GDC tool Register once. Access to a new tool is added to the account you already have.
  2. 02 An administrator approves each registration New sign-ups sit in review until they are approved. Nothing is opened automatically.
  3. 03 Households share one workspace Cats, recipes and trips belong to the household, not to a single person. Everyone in it sees the same data.