Somewhere between too much coffee and stubborn optimism, I build software that mostly does what it's told.
I've been writing code since I was 16 — started because turning nothing into something that actually runs felt like the closest thing to magic I could get my hands on, and that feeling never really wore off.
By day I work in software development for automation and camera algorithms. The rest of the time I build the tools I wish already existed: usually open source, usually privacy-first, always because I got curious about something and couldn't let it go.
Odysync — safe, fast software & driver updates for Windows, macOS and Linux. A full Rust rewrite of my old Python updater, with a strict safety-policy engine, a CLI, and a Tauri desktop app. Rust · Tauri v2 · React
Sensei — a self-hosted AI workspace with token compression, built so your data never has to leave your machine. Free and open source. Python
Pythia — a multi-venue prediction & trading cockpit (Polymarket, crypto, equities) with a disciplined risk model. Ships in paper mode, because losing money by accident isn't a feature. TypeScript · Rust · Tauri
HYAKKI — an idle auto-battler descending through Japanese folklore, built under one rule: zero art and zero audio assets. Every sprite is a pixel grid, every sound is synthesized. TypeScript · Tauri
Mercy SF — a cross-platform desktop app that automates Shakes & Fidget: quests, arena, dungeons, fortress, the lot.
There are usually a couple more experiments quietly running in the background.
Mostly Rust, Python and TypeScript/React these days, with C++, C# and Java never far away. For the desktop side I lean on Tauri, and everything runs on Linux.
- LinkedIn — jakob-hollwedel
- Ko-fi — ko-fi.com/senseiissei
If you're working on something interesting, or just want to talk shop, hmu.