Tech Events in Leiden

Come join our community of people interested in and working with the Python programming language. We meet up in the city of Leiden, The Netherlands. Exchange experiences and learn from others on the topic of the most popular programming language!

take note: we are moving
please register for this meeting via the Luma platform; https://luma.com/rlb5u7b6

July edition

Mapping the Cloud with Elixir by Peter Ullrich
The “Cloud” sometimes feels like this abstract thing you deploy your server to and otherwise forget about. But what does it look like? What pathways connect this globally spanning network of datacenters? I used Elixir to find out.
I deployed an Erlang cluster of tiny probes across 100+ datacenters on AWS, GCP, and Azure, collecting months of traceroute data in TimescaleDB to map the hidden topology of the cloud. This talk explores how I deployed the probes efficiently and cheaply, what the data revealed, and the practical challenges of running a globally distributed Elixir system.

Doors open at 19:00
Talks start at 19:30

📅 Thursday, 16 July 2026 🕒 19:00 - 22:00
📍 Café De Keyzer, Kaiserstraat 2-4, Leiden (city center)
❣️ Upstairs