I build software because I want to use it myself.

PocketDev

Use my daily commute to keep working on my software projects.

I spend part of every workday on a bus. I want to use that time to work on my apps. My development machine is at home, while my phone is already in my hand.

PocketDev makes the important development workflows accessible directly from the phone. I can switch projects, follow changes, start tests and builds, install apps and control running processes.

The idea behind it: My development workflow should fit my everyday life. The lower the barriers between an idea and the next step, the easier it becomes to use my time for developing, experimenting and learning.

Personal Library

Keep track of my book collection and rediscover it.

With more than 600 books, it is difficult to keep track of what is actually sitting on my shelves. Personal Library makes the collection searchable and lets me filter, group and rediscover titles that have slipped out of view.

Adding a book is simple: I take a photo directly in the app. Title and author are recognized, and additional information is enriched from publicly available internet sources. I can then review the entry and add it to my library.

The idea behind it: A digital library creates a new way to access the books I already own. Simple capture helps keep the collection current. Search, filters and grouping then turn it into something I can explore and rediscover again and again.

Android LLM Service

Local AI as shared infrastructure for my apps.

I want to use language models in several of my own applications while choosing different local resources depending on the task. A smaller model can run fully offline on the phone, while a larger model on my own server is available for more demanding tasks.

Android LLM Service provides a shared foundation for this on the phone. Applications such as FreyaOS, Personal Library and LocalChat can use local AI without each needing to bring its own infrastructure.

LocalChat is both an application and an experimentation space. Alongside fully local chat with multiple conversations and memory, I am building ways to systematically test and benchmark different models and configurations.

The idea behind it: I am interested in how local AI can become useful personal infrastructure. Which tasks can run directly on the phone? When is a larger model on my own hardware worth it? And how can shared infrastructure make these capabilities available to several applications?

Health Data Hub

Own and understand my health data.

Wearables collect years of data about my body, activity, sleep and habits. I want to make that data useful to me, independently of a manufacturer's app and cloud.

Health Data Hub creates a personal data foundation for this. I can follow developments over longer periods and relate different aspects to each other. That lets me explore my own questions, for example how sleep, movement and training are connected.

The project is evolving from a collection of my wearable data into a tool for exploring and understanding that data.

The idea behind it: The value of personal health data lies in being able to keep it over time and ask my own questions of it. Health Data Hub combines data sovereignty with the ability to discover insights for myself.

GoodVibes

Use connected hardware in a way that fits how I actually want to use it.

Many connected devices come with their own app, which also defines how the device can be used. I wanted to see what happens when I take control of that software layer myself.

GoodVibes connects directly to compatible hardware over Bluetooth and gives me my own interface for controlling it. I can shape workflows, interaction and features around what makes sense to me. What started as simple control has grown into a stable app with its own patterns, multiple simultaneously connected devices and a much more developed interface.

The idea behind it: With connected hardware, software determines a large part of what a device can actually do. If I can shape that software myself, I can also change and extend how an existing physical product is used.