
Cloud Native Denmark 2026 talks – Whose Code is it Anyways? and Beyond the Data Swamp: Building Your Semantic Observability Mesh
Conference Talk
Cloud Native Denmark 2026 talks – Whose Code is it Anyways? and Beyond the Data Swamp: Building Your Semantic Observability Mesh
November 19 @ 4:00 pm – 4:25 pm Copenhagen, Denmark

Josh Lee takes the stage twice in Copenhagen on November 19, first on keeping open source healthy in the AI era, then on turning telemetry sprawl into a semantic observability mesh.
Altinity is on the programme twice in a single day at Cloud Native Denmark 2026, the Copenhagen conference for the platform engineers, SREs, and architects running the Nordics’ most demanding cloud native systems.
In Whose Code is it Anyways?, Adriana Villela, Principal Developer Advocate at Dynatrace, and Josh Lee, Open Source Advocate at Altinity, make the case for bidirectional empathy in open source.
AI lets contributors move faster than ever, which leaves maintainers buried in low-quality pull requests and junior developers with no room to grow. Expect guardrails for AI-assisted PRs, and a reminder that suggestions from juniors deserve a real hearing.
In Beyond the Data Swamp: Building Your Semantic Observability Mesh, Graziano Casto and Josh Lee tackle the opposite end of the same problem.
Teams collect more logs, metrics, and traces than ever and still go blind during incidents, because the gap is shared understanding rather than data. The session shows how ClickHouse® handles telemetry at scale without wrecking the budget, and how custom semantic layers validated with Weaver get every system speaking the same language.
Catch both talks at Cloud Native Denmark 2026 on Thursday, November 19 in Copenhagen. Whose Code is it Anyways? runs on the main stage from 16:00 to 16:25.
About the Presenters

Joshua Lee – Open Source Developer Advocate at Altinity
Whether it’s operators or observability, agile or accessibility, his expertise shines because he is passionate about all of it. He’s been building software for more than a decade, and he loves sharing experiences via public speaking. He is currently a Developer Advocate for Altinity, where he helps create educational content about ClickHouse® and OpenTelemetry, and he is a contributor to the OpenTelemetry project.

Adriana Villela – Principal Developer Advocate at Dynatrace
Adriana Villela is a blogger, host of the Geeking Out podcast, CNCF Ambassador, and maintainer of the OpenTelemetry End User SIG. By day, she focuses on Observability and OpenTelemetry as a Principal Developer Advocate at Dynatrace. By night, she climbs walls. She also loves capybaras, because they make her happy.
In past lives, Adriana managed both a Platform Engineering team and Observability Practices team at Tucows. She has also worked at various large-scale enterprises as both an individual contributor and leader, including Bank of Montreal, Ceridian, and Accenture.

Graziano Casto – Developer Relations Engineer @ Akamas | Tech Lead @ CNCF TAG DevEx | Kubernetes v1.35 Comms Lead
Graziano is a DevRel Engineer at Akamas, where he spends his days convincing computers to stop being lazy and start being efficient. A former distributed systems developer and product manager, he’s now on a mission to optimize the entire cloud-native universe, one Pod at a time. As a Tech Lead for the CNCF TAG DevEx and a member of the Kubernetes Release Team since v1.34, he balances deep infrastructure roots with a passion for developer happiness. Obsessed with AI, Platform Engineering, and saving the planet through better code, Graziano is basically trying to make the cloud faster, greener, and significantly less annoying for everyone. More on: https://castograziano.com/
Want more great content? Subscribe to our newsletter and get all ClickHouse content straight to your inbox.