THIS MEETUP WILL BE IN PERSON
What to expect
🗣️ Two or Three speakers
👥 Meet old and new friends from the community
🍕 Free food
🎉 Open-end and free drinks afterwards
✔️ Just RSVP!
Agenda
17:30 - Doors open
18:00 - Welcome
18:05 - 🗣️ Lukas Zainzinger \- Escaping the Trap: A Pragmatic Approach on Decision Making to avoid Vendor Lock\-In
18:50 - Break
19:00 - 🗣️ Roland Rittchen \- OpenStack: From Sovereignty to Liberty
19:45 - 🎉 Open-end
🧑💻 Speakers
Lukas Zaininger \- Site Reliability Engineer at Willhaben
Escaping the Trap: A Pragmatic Approach on Decision Making to avoid Vendor Lock-In
Adopting third-party platforms and cloud-native services accelerates delivery, but it often comes with a hidden cost: vendor lock-in. When switching costs balloon and migration paths vanish, architectural agility suffers. How do you balance development velocity with long-term technological independence?
In this talk, I will break down a pragmatic, 2-step evaluation process used at willhaben to assess third-party solutions before writing a line of integration code. You’ll learn how to implement a practical Service Decision Matrix that quantifies service quality, operational complexity, and operation costs within a realistic vendor lock-in framework.
Roland Rittchen \- Senior Platform Engineer at SQUER
OpenStack: From Sovereignty to Liberty
Europe has spent three years building sovereign cloud.
Regulators demand it, the European Commission
procures it, and a dozen providers now sell it. But
sovereignty answers a question about jurisdiction — and
it quietly leaves the harder one unanswered: if you can't
actually move, you aren't free. You've just changed who
owns you.
This talk takes the promise literally and tests it. One
OpenTofu repository, one Flux repository, three targets: a
self-hosted OpenStack cluster running on three mini PCs,
plus two European public clouds. We measure how much
genuinely transfers, find the places it leaks, and confront
the gap nobody p