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PAST XXL

XXL 2025

Apenheul, Apeldoorn

On 9 December 2025 the second APE XXL took place in Apenheul. A day of Azure platform engineering — from Bicep extensions and KQL detection to AI agents, sovereign cloud, and a full-day workshop on cloud-native platforms. Here are the eleven sessions and the people who delivered them.

Sessions

  • Build a cloud native engineering platform in a day — Geert van der Cruijsen & Chris van Sluijsveld (workshop)
  • Bicep, but Your Way: Build Your Own Extension — Maik van der Gaag
  • Monkey See, Monkey Detect — Gianni Castaldi
  • What’s the point of going to the edge? — Freek ten Broek
  • Bringing AI Agents to Life with Azure AI Foundry — Henk Boelman
  • AI Is Easy — until you add people — Marin Niehues
  • Storm-1811 — Russian nation-sponsored attack in real-time — Derk van der Woude
  • Battling the Assumptions: How what you think you know about Azure Networking is a lie — Marc Dekeyser
  • CSPM als de lijm tussen cloud en security — Rhesa Baar
  • Understanding Model Context Protocol (MCP) — Roelant Dieben
  • Azure sovereign landscape — Dylan de Jong & Yannick de Koeijer

Speakers

Maik van der Gaag · Henk Boelman · Roelant Dieben · Marin Niehues · Gianni Castaldi · Rhesa Baar · Dylan de Jong · Geert van der Cruijsen · Freek ten Broek · Yannick de Koeijer · Derk van der Woude · Chris van Sluijsveld · Marc Dekeyser

Photos

The Auditorium at Apenheul set up for APE XXL, with a camera rig at the backA speaker on stage beside the APE beach flag in the AuditoriumAttendees with laptops at the tables in one of the breakout roomsA full Auditorium watching a session at APE XXL 2025A speaker walking through code on the big screenGlasses and bottles lined up in the foyer, ready for the borrelThe buffet dinner served in the foyer between the afternoon and evening sessionsA speaker closing their session in the AuditoriumOrangutans in their outdoor enclosure at Apenheul, a few steps from the conference roomsAn orangutan climbing the wooden frame in the Apenheul enclosureA primate on a branch behind the mesh of an Apenheul enclosureFreek ten Broek presenting "What's the point of going to the Edge?" in the AuditoriumA session on AI agents, with a slide on engineers becoming agent managersA slide reading "AI Engineers are the most sought after people in tech right now"Marc Dekeyser presenting "Battling the Assumptions" to a packed breakout roomAttendees gathering in the Apenheul foyer at the registration desk