I am an Open Source Software Enginner working for Univention.

My special interests are HTTP, REST architecture, LDAP, Security technology, Python, protocols, generic libraries and Clean-Code - and I like to combine all of them.

At Univention I am working at the Debian based Linux Distribution Univention Corporate Server.

My focus topics there are: IAM (Identity and Access Management):

• OpenLDAP
• REST-Services for LDAP-objects
• Active Directory & Samba 4 to OpenLDAP connector
• A little bit Kerberos (Heimdal) and Samba 4

Web Interfaces & Design:

• Javascript (dojo toolkit, vue) web frontend
• HTMX based HTML frontends
• HTTP backends
• responsive Web-Design

Python:

• Python linting standards
• Python 2.7 to 3 migration

Security:

• Finding and fixing internal security issues

Containerization:

• building Docker containers for our currently Debian-packaged components

In my spare time I used to do Hacking Challenges and penetation testing (e.g. at WeChall).

FreeIAM - Currently just a LDAP Client library for Python, which is capable of all LDAP functionality in a developer-friendly API. It has 100 % test coverage, 100 % mypy and ty compatible type annotations, async and sync support. Supported LDAP functionality: TLS, SASL, pagination, extended DN handling (comparison, normalization), extended LDAP filter tree (parsing, handling and manipulation), all common LDAP controls, extended operations.

I am the inventor of httoop, an object oriented HTTP library (for implementing HTTP servers, clients, caches and proxies) focusing on strict compliance, security, object orientation, simplicity in use, using strictly the vocabulary of HTTP instead of inventing own things and not doing extra things and workarounds. It's the best HTTP library I've seen in the Python world so far ;-). As I am miserable in marketing, there are only a few users yet.

I am maintainer of circuits. Circuits is a Lightweight Event driven and Asynchronous Application Framework for the Python Programming Language with a strong Component Architecture. A project which exists long before asyncio - but nowadays isn't as modern as these frameworks - maybe we can catch up somewhen.

While circuits has a circuits.web component, I created a different Implementation called circuits.http using my httoop project as basis. This focused on more explicit request routing and simplifies implementing all HTTP functionalities and REST principles.

I am a heavy user of Linux, Python, git, vim, sway/i3-wm, ruff, ty. My configration files are available as Debian package at dotfiles.