Ossian Hempel
Data engineer. Indie app developer.
I work with data engineering, have a background in data science, and build my own apps on the side. Most of them come from things I already spend time on: lifting, nutrition, and making daily systems less annoying.

Current mix
Data work during the week. App work when an idea keeps coming back.
Apps, projects, and notes.
Browse archiveMy strength training app. Built for logging workouts quickly and keeping progression easy to understand.

An AI nutrition app for turning meal photos into useful calorie and macro estimates.

Notes on data work, app ideas, training, nutrition, and whatever I am trying to figure out.

A recipe project for saving meals from around the web and making them easier to reuse.

A bit more about what I do.
Latest writing
Introducing GainsLog: Stop Guessing, Start Progressing
I've spent the last few months building something I wish I'd had years ago, a workout app that doesn't just track what you did, but helps you decide what to do next.