The Build. Scale. Investigate. World Tour has officially begun! Uber and EngFlow co-hosted the February 2026 Build Meetup at Uber’s buzzing Amsterdam office. The event brought together developers and build specialists who shared "war stories" from the build community.
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
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.
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!
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.
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.
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
Discover the highlights from the seventh Bazel Community Day and happy hour in Amsterdam. Jointly organized by EngFlow and Booking.com, hosted at the stunning new Amsterdam headquarters of Booking.com on March 25, 2024. You can see Booking.com's recap here.
On October 23 2023, the day before the first European BazelCon, EngFlow and Tweag organized the sixth Bazel Community Day at the Salesforce office, capped off with a happy hour sponsored by Gradle.
On May 23, 2023, EngFlow teamed up with Snap to organize a Bazel Community Day for the Bay Area. Over 70 people attended the event, hosted at Snap's offices in beautiful San Francisco.
EngFlow and Wix bring the Bazel community together in Tel Aviv
On February 23, 2023 EngFlow and Wix teamed up to organize the first Bazel Community Day in Israel. Wix hosted the event in its event space in the picturesque Tel Aviv Port, welcoming guests from the Google Munich Bazel team, as well as engineers from local and global companies.
