Open Source Summit India 2026

The Linux ecosystem powers many, if not most, devices these days. Having a well designed sustainable way to build and maintain one – and not having to rely on a hodge-podge collection of hacky scripts – is critical. This talk introduces the Yocto Project - _the_ industry standard way to build and maintain your custom Linux.

With Yocto, one can build a custom (embedded or otherwise) Linux in an efficient and completely reproducible manner, along with several related advantages; it's a 100% open source, has the ability to build-in security features, all/most major BSP layers are already available, and more.

This session will show you exactly how to get started on building such a custom system with Yocto; it will of course include leveraging Yocto/OE’s famed layer+recipes model.

Practical guide to writing Devicetree sources (DTS) and bindings for the Linux kernel. Jump in if you want to know:
1. What compatibility means between devices and how to express it in DTS.
2. What can be in DTS and what cannot.
3. Fastest way to upstream your DTS (no need for 10 iterations!).
4. Validate your DTS and live error-free ever after.

The talk will focus on Devicetree (DTS and bindings) in the context of Linux kernel, which is also applicable to several other projects like U-boot.

This talk presents an overview of FOSS United's mission to promote and support the FOSS ecosystem in India. The Foundation was registered in India in 2020 and is supported by thousands of volunteers nationwide throughout the year.

Our programs operate on three orthogonal directions-

- Individual creators and maintainers (by giving them a platform to talk about their work, or direct support)
- Communities (by either directly creating FOSS communities in India or supporting existing ones)
- Organizations (to adopt, acknowledge use of, contribute to, and create FOSS projects)

The talk aims to share insights into the programs we have developed to foster collaboration, innovation, and community engagement within the tech ecosystem. Attendees will learn about the challenges and successes of building FOSS communities, increasing awareness about open-source tools, and strengthening industry-academia-government partnerships. The session will also highlight the broader implications of these efforts on promoting digital inclusivity and shaping India's position in the global free & open-source landscape.

We will also showcase some Indian FOSS projects that have come out of the community!

Zephyr is officially 10 years old and many silicon manufacturers are moving towards it as a de-facto RTOS. With over 3000+ contributors and 15,000+ commits per release, Zephyr is one of the fastest moving open source RTOS projects today.
Linumiz is a software partner with silicon manufacturers like Infineon and Texas Instruments, maintaining open source downstream Zephyr releases for their customers. This involves backporting bug fixes, security fixes, rebasing, and moving to new release cycles to keep up with Zephyr's upstream development pace.
In this talk, I will walk through how we manage these downstream releases and cope with upstream pace - what works, what doesn't, and what product developers should keep in mind when building long-term products on Zephyr.

Ten years ago, the Zephyr Project set out to build an open, scalable real-time operating system for connected and resource-constrained devices. Today, Zephyr powers a rapidly growing ecosystem spanning IoT, industrial systems, automotive platforms, and edge computing.

This session celebrates Zephyr’s first decade and explores what has driven its success—from technical architecture and open governance to a vibrant global contributor community. Drawing on insights from a new Linux Foundation Research study, the discussion will highlight key milestones, ecosystem growth, and the forces shaping Zephyr’s future.

In this session, we’ll explore:

-The Zephyr features that are most valued
-How open collaboration accelerates RTOS innovation
-Growth of the global Zephyr developer ecosystem
-Real-world Zephyr practitioner use cases & insights

Key questions:
-How is Zephyr being used across embedded products?
-What are the defining features of Zephyr that have contributed to its adoption?
-What are the attributes of the Zephyr community that contribute to the project's growth and health?

This session compares how camera support is built in the Zephyr Project and in the Linux kernel camera subsystem.

Zephyr focuses on real-time behavior, low memory usage, and simple system design, making it suitable for small, low-power vision devices. Linux, through frameworks such as Video4Linux2 and the Media Controller subsystem, provides a more structured and scalable approach capable of handling complex camera pipelines, multiple cameras, and advanced processing.

The session examines architectural trade offs between the two camera subsystems, comparing their design approaches and highlighting differences in driver structure, pipeline design, and overall system integration. It also explores how Zephyr’s camera architecture can evolve to support more advanced and scalable vision needs, moving closer to Linux capabilities.