Adaptive Learner - Learn Languages with AI

AI-powered learning app with 7 modes, 26 content sets across 10 languages, and 5405 cards. Practice, exam, timed, error training, reverse, shuffle, endless. Spaced repetition, AI-generated exercises, social sharing, and GitHub repo sharing with invitation codes. Free, offline-capable, open source.

Open app · GitHub · Desktop launcher

Bibliogon - Write, Organize, Publish

Open-source authoring platform for books, articles, comics, and picture-books. A rich TipTap editor, a per-book Story Bible, drag-and-drop storyboards, and a KDP publishing wizard. Export to EPUB, PDF, DOCX, HTML, Markdown, and LaTeX, generate audiobooks, and sync chapters via Git. Installable, offline-capable PWA, local-first, AI-assisted. Free and open source.

Open app · GitHub · Desktop launcher

Phylax - Your Living Medical Profile

Privacy-first health-record PWA for a living medical profile of observations, lab values, supplement plans, and open questions. Local-first and zero-knowledge: everything stays on your device, encrypted with AES-256-GCM and PBKDF2. No cloud, no accounts. Manage your own and a proxy profile, structure entries with AI assistance via your own key (Anthropic, OpenAI, Google, LM Studio), and export rich PDF reports. Installable, offline-capable PWA, DE/EN. Free and open source.

Open app · GitHub

Topos - Personal Inventory Tracker

Offline-first PWA and desktop app for indexing physical storage - file folders, archive boxes, and drawers - and everything inside them. A hierarchical category tree, priority levels, and pending-action tracking (review, cancel, archive). Import from Excel, search full-text, and recognise box contents from a photo with AI vision (Anthropic, OpenAI, Gemini). Plugin-driven on PluginForge, available in 8 languages. Installable, offline-capable PWA plus desktop launchers for Linux, macOS, and Windows. Free and open source.

Open app · GitHub · Desktop launcher

SDKMAN Series - From Setup to Strategy

A five part deep dive into installation, automation, vendor workflows, and a critical look at Python. Includes a Windows companion for WSL, Git Bash, and Scoop.

Explore the series

Books

Selected philosophical, technical and personal works. View all books →

Recent Writing

More on Medium

Web Applications

Desktop Tools

Python Libraries (PyPI)

Java Libraries

Consulting

I help teams standardize SDKs and toolchains, automate builds and tests, and adopt production ready AI workflows. Typical engagements include JVM environment strategy with SDKMAN, CI automation, and data projects from exploration to delivery.

Work with me

Contact

Best way to reach me is via LinkedIn. You can also follow my work on Medium and GitHub.