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@TheJJ

Jonas Jelten

TheJJ
Munich, Germany, Europe, Earth, Solar System, Milky Way, Local Group, Virgo Supercluster, Laniakea, Pisces–Cetus, Universe

My home-base is Munich - Germany 🏠

Technologies I like: Linux stuff, Vim & Emacs, Gentoo, storage clusters, payment systems, game engines, databases, interesting humans, delicious food, and the Internet 🌍

In free-software-world, I'm working on and contributing or maintaining various projects for fun:

  • openage - age of empires engine (C++/Python/Cython/QML)
  • nyan - hierarchical key-value database used in openage (C++)
  • stustapay - nfc wristband payment system for events (used for 12k+ guests at StuStaCulum) (Python, React, Typescript, Kotlin, PL/pgSQL)
  • abrechnung - group payment settling (Typescript, React, Python, PL/pgSQL)
  • stiefelsystem - start your computer on another computer via network (Python)
  • wirespider - mesh vpn using wireguard (Rust)
  • ceph-balancer - optimize storage consumption on ceph clusters (Python)
  • ceph-cheatsheet - compressed knowledge about operating ceph clusters
  • a few other projects...

When a contribution has presented itself favorably, I've committed various bugfixes or smaller features in many free-software projects :)

If you're happy about my work, I'm also happy 😸

Featured work

  1. SFTtech/openage

    Free (as in freedom) open source clone of the Age of Empires II engine 🚀

    Python 12,792
  2. stustapay/stustapay

    Electronic Payment System for Events using NFC Wristbands

    Python 103
  3. SFTtech/nyan

    Typesafe hierarchical key-value database with inheritance and dynamic patching 😺

    C++ 211
  4. SFTtech/abrechnung

    Payment tracking and money splitting for groups 💸

    TypeScript 135
  5. TheJJ/ceph-balancer

    An alternative Ceph placement optimizer, aiming for maximum storage capacity through equal OSD utilization.

    Python 110
  6. SFTtech/sftdyn

    Self-hosted dyndns/dynamic DNS server and updater for bind

    Python 257

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