01 projects

Selected project case files. Things I currently work on or worked on in the past.

map-it

role: Contractor
period: 2025–ongoing
stack: Ruby on Rails, Inertia & Svelte 5, Hotwire, SQLite
about: participatory mapping platform for neighbourhood planning
url: map-it.at

MeisterTask

role: Staff Engineer
period: 2018-2024
stack: Ruby on Rails, GraphQL, Kubernetes, MySQL
about: large production task-management system serving millions of users
url: meistertask.com

Sakya Research Center

role: Maintainer
period: 2021–ongoing
stack: Ruby on Rails, PostgreSQL, legacy infrastructure
about: maintenance of a long-running research platform
url: sakyaresearch.org

02 source

I work on open source mostly to scratch my own itch. Sometimes that means creating a new Gem. Sometimes it means updating documentation or contributing to tools that I use daily.

Most of my OSS work stays close to Ruby and Rails. I maintain tools like Rails Mini Profiler, contribute to Rails or work on various Ruby community projects.

The full drawer of repositories, experiments, dotfiles, and assorted stuff lives on GitHub.

Rails Mini Profiler

A Rails engine and Ruby gem for profiling request performance, inspecting traces, and recording flamegraphs. Now archived.

role: maintainer
kind: Rails engine
what: performance monitoring / dev tool
url: github.com/hschne/rails-mini-profiler

RubyEvents.org

Contributions to the public index of Ruby events, and various bugfixes.

role: contributor
kind: Ruby community
what: community site indexing Ruby talks and events
url: rubyevents.org

03 community

Ruby community work in Vienna, Austria and abroad. It’s not code, but that doesn’t mean it’s not important.

Vienna.rb

The Vienna Ruby meetup. Talks, quarterly gatherings, and getting Ruby people into the same room.

kind: meetup
place: Vienna
url: ruby.wien

RubyConf Austria

Austria's Ruby conference in Vienna. Co-organizer for the 2026 edition.

kind: conference
place: Vienna
url: rubyconf.at