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Four War Stories and a Demo: Seattle Build Meetup 2026

Waleed Khan from Stripe presents in Seattle at Uber’s offices

On July 28, 2026, Uber and EngFlow co-hosted a Build Meetup at Uber’s Seattle office. This wouldn’t have been possible without the help of Sergey Balabanov at Uber, who not only presented one of the talks, but also energetically arranged and helped support this event from the Uber side. Thanks again, Sergey!

And, even though nobody planned a theme for this particular meetup (our meetups are holistically focused on “Build, Scale, Investigate”), one showed up anyway. Code is getting cheaper to produce. Uber put it flatly: “AI is a problem, apparently.” Every talk examined some part of the machinery that turns abundant code into software you can trust. Let’s take a look!

Say hello to the new bazel.build website

Today, the new https://bazel.build/ website has finally launched. This is the first step in a larger evolution of Bazel's documentation story. Much of the content remains the same (the eagle-eyed among you may notice a few new pages), but this change marks a new era of Bazel documentation.

What motivated this change?

The Bazel site migration is more than just a fresh coat of paint. One of the underlying motivations for this change is to empower the Bazel community to make more changes to Bazel's documentation. Before the migration, Bazel's website was built on Google documentation infrastructure. While the capabilities of that infrastructure were largely sufficient for Bazel's needs up to now, the contribution experience was not.

Today's https://bazel.build/ is built on Mintlify. With this new platform, each incoming documentation pull request to Bazel is automatically greeted with a preview. For even faster iteration, you can build the site locally. These improvements eliminate guesswork, and better equip contributors to make changes to the Bazel docs with confidence.

Democratizing Build Scalability: Eugene Yokota on Bringing Bazel Features to sbt 2.0

In this interview, Eugene Yokota—a software build expert who spent years maintaining Scala's sbt tool at Lightbend before working with hyperscaled Bazel monorepos at Twitter and Netflix—details his multi-year project to build a Bazel-compatible remote caching system into the newly released sbt 2.0. He explores the mechanics and benefits of Bazel, such as its robust remote caching and test cycle speed, and highlights how these modern, scalable build tools can eliminate CI bottlenecks for growing teams while protecting toolchain security.

Munich Bazel Build Meetup 2026: Tackling Supply Chain Security and Monorepo Scalability

Following a phenomenal annual EngFlow company summit, the Bazel community gathered at the Salesforce offices in Munich for an evening dedicated to expanding the boundaries of build systems, developer tooling, and software supply chain integrity.

With a keynote analyzing the complexities of SLSA 3 and technical lightning talks spanning Bazel integrations, IDE optimization, and parallelization, the event showcased how top-tier teams are solving today's hardest platform engineering problems.

If you missed the live event, we’ve aggregated the core architectural takeaways in this post.

December 2025 Bazel Central Registry Outage

On December 26, 2025, Bazel users worldwide struggled with running their builds, as Bazel reported errors due to expired TLS certificates:

ERROR: Error computing the main repository mapping: Error accessing registry https://bcr.bazel.build/: Failed to fetch registry file https://bcr.bazel.build/modules/platforms/0.0.7/MODULE.bazel: PKIX path validation failed: java.security.cert.CertPathValidatorException: validity check failed

Build Meetup in London – Recap

In May, we co-hosted the London Build Meetup with Tweag by Modus Create and Jane Street. Build system insights, stories about first-hand build challenges, and great conversations packed the afternoon and evening. The lineup covered everything from large-scale migration battles to new research. If you missed it, here’s what you need to know.

Build Meetup in Munich – Recap

Another successful build meetup done! Our April meetup was co-hosted by JetBrains. The night was all about swapping stories, learning something new, and enjoying some good food and drinks. If you missed out, read the recap below and check out meetup.build for the next one!

Build Meetup April 2025

Build Meetup in Tokyo — Recap

Co-hosted by EngFlow and Google, the build community in Tokyo came together for an afternoon of tech talks and a happy hour filled with beverages and good vibes.

The event went straight into talks, starting with introductory words from our Google host, Philipp and EngFlow Developer Support Engineer Kip. The talks that followed spanned build systems and build issues:

Following the talks, we headed out to a nearby bar for some canapés and drinks, meeting fellow build engineers and enthusiasts from around the region.

CMake & Bazel Meetup in Munich - Recap

Fire up your time machine and set it to July 18, 2024, because we're taking a trip back to the CMake & Bazel Meetup in Munich. Let's set the scene: EngFlow and Apex.AI have joined forces to host a day filled with insightful talks and networking opportunities at Apex.AI's office in Munich.

CMake & Bazel Meetup - Jul 2024 - Munich

The CMake & Bazel Meetup in Munich

There was no shortage of great talks and knowledge, including: - Welcome and Introduction by Dhruv Chad, Apex.AI - Deploying With Bazel on Yocto-based System by Evgeny Petrov, Quello - Automatically Translating Our Bazel Codebase to CMake by Nico Morin, Apex.AI - CMake CPS: What It Is and Why It Matters by Damien Buhl, Tipi - One TOML File to Rule Them All: Official Rules for Multi-Version Multi-Target Python Setup by Michael Krasnyk, Ruumi - Until Next Time