OSS + ELC EU 2026

The Zephyr USB host stack is still evolving and remains an experimental subsystem for many real-world applications. This session presents practical experience in enabling key USB host classes in Zephyr, including UVC (USB Video Class), CDC-ECM, and USB Hub support, along with a series of architectural improvements to the host stack.
The presentation highlights the challenges and lessons learned while bringing these features to Zephyr, including attach/detach handling, dynamic class matching for composite devices, device lifecycle management across class drivers, the core stack, and UHC drivers, dynamic configuration selection, and limitations in current APIs.
In addition, the session identifies gaps in the current USB host subsystem and outlines potential directions for future evolution. It aims to provide practical insights and guidance for developers working on USB host support in Zephyr.

Spot instances reduce cloud bills by up to 90%, but choosing which to use is a multi-dimensional puzzle where price, performance, interruption risk, and instance heterogeneity all interact. Kubernetes provisioners like Karpenter optimize a narrow slice of this problem, tightly coupled to a single cloud vendor, AWS.

KubePACS is an open source project that separates the decision from the execution. A vendor-neutral optimizer computes the best mix of instance types for a workload's cost-performance-availability profile, then translates that into native configuration for the user's provisioner

The talk goes deep into the system: the ILP-based selector for cost-performance-availability trade-offs, the GSS-driven optimizer that tunes them automatically, multi-node spot placement awareness for robust capacity across cloud providers, and clean integration with upstream Karpenter.

Attendees see measured gains over baseline configurations and take away an architecture pattern for performance-aware spot instance provisioning. We close with our intent to grow KubePACS as an open source community effort and welcome contributors to shape what comes next.

Autonomous VTOL aircraft require reliable, precision landing capabilities to enable real world applications from package delivery to infrastructure inspection. This session presents a complete open-source precision landing system built on ROS 2 and PX4, covering the full development lifecycle from high fidelity simulations to flight tested deployment.

We'll walk through how we developed, validated, and refined a multi-sensor perception and control stack that achieves centimeter-level landing accuracy using only commodity sensors and open-source tools. The system uses AprilTag fiducials for dock detection, fuses visible and infrared camera streams with a Kalman filter for robust pose estimation, and executes a phased descent state machine with real-time PID control.

The presentation covers:
Simulation first development: Building a Gazebo SITL environment with realistic sensor models
ROS 2 + PX4 integration: Bridging autopilot and perception via micro-XRCE-DDS,
Production deployment: Lessons learned scaling from lab prototype to field-tested hardware. Practical guidance on composing a production system from ROS packages, PX4 firmware, and community-contributed modules.