George Li

[Eugene Ostroukhov @eeuoss]

Bazel is seriously underappreciated. Clone of Google’s internal Blaze, it’s cross-language, battle-tested, and extensible. Decades of Google engineering expertise.

My favorite part: aggressive caching. I run all tests; it reruns only what changed, tracked by hashes. I’ve never seen it miss a change.
2.5s rebuild + test.

[Mostafa @KallamMostafa]

So we did a thing at @wallapop 👀

We migrated our iOS project build system to @bazelbuild and results are wild, Ci time went from 50m → 2-10m, local Iteration speed (1m → seconds)

The results are wild, and we did more by integrating everything for devs, and agents in CLI tool, called Tente.

[Bazel @bazelbuild]

Bazel 8.7.0 is officially here! 🚀
We are excited to share the latest updates to the ecosystem.
Stay up to date with the latest features and fixes by reviewing the release notes👇
https://t.co/4I50iOFh3R

[Dan Stowell @dnstow]

Super cool work Tyler French + all the @buildbuddy + @bazelbuild people who manifested CDC https://t.co/9KxUAvGSpo

[Siggi @siggi]

Incremental builds deserve an incremental cache. Major props to Tyler French from the @buildbuddy team for landing this change in @bazelbuild that reduces cache uploads and disk cache size by 40%+ https://t.co/kwFRLMpMew

[Bazel @bazelbuild]

Save the date: #BazelCon 2026 📢
We’re bringing the community together in Amsterdam!

> Training Day: Oct 13
> Main Conference: Oct 14-15
> Registration opens April 22nd!

See you there!
https://t.co/AdJmn63CP5

[The Build Registry @BuildRegistry]

Version 9.0.1 of Bazel bazel is now live on The Build Registry. https://t.co/C6TlBJ01Ag

[Adam Wolff @dmwlff]

@norootcause CI is also a bottleneck

[Mostafa @KallamMostafa]

This is so underrated, being able to efficiently have have LLMs part of the build system unblocks a lot of marvels.

[Corentin Kérisit @corentinanjuna]

@siggi @buildbuddy Exactly ! I show everyone I can how I’m pretty much alone doing codex cloud at this scale just because I don’t care containers are only 2 cores. While every other agents wait minutes doing things locally, mine loop at light speed while everything compiles and test w/ @buildbuddy

[Siggi @siggi]

Your coding agent doesn't need a sandbox, it needs a remote execution cluster https://t.co/xRbLbi3WiH

[Siggi @siggi]

Beyond excited to welcome @SmileyKeith to the BuildBuddy team! Keith is the maintainer of Bazel's iOS support, a contributor to LLVM and Swift, creator of the Mobile Native Foundation, and an all around awesome human.
https://t.co/EhG6U0SyNj

[Steeve Morin @steeve]

After LLVM, Clang, libc++, we now bootstrap Zig from source, too.

This is a screenshot of a remote build of the Zig compiler for macOS, built on Linux remote runners.

[Corentin Kérisit @corentinanjuna]

Current status and coming soon:

Compiling flash-attention kernels with @bazelbuild and #llvm for all Nvidia Compute Capabilities, 1 action per sm_xx per kernel, fully parallel, hermetic and remote, in 5 minutes.

🫶 @buildbuddy for providing the cores <3

[Steeve Morin @steeve]

My friends who are actually working *on* LLVM are the ones complaining.
Btw, thanks to @corentinanjuna and @buildbuddy a *cold* LLVM build is now 20s, fully cross compiled from *anything* to *anything* (yes even macOS)

[Max Rozen @RozenMD]

wild how a fast CI/CD pipeline with good test coverage is basically a competitive advantage now

[mfreeman451 @mfreeman451]

@olafurpg we migrated our entire monorepo (ocaml, rust, javascript, golang, elixir) to bazel in 2 weeks with one engineer. Build times went from 2.5 hrs to ~7 minutes.

[Siggi @siggi]

Large engineering teams use Bazel to tame their ever-growing monorepos. Today, I'm excited to share rules_codex, a hermetic cross-platform Bazel toolchain and ruleset for OpenAI's Codex coding agent designed to make working in large enterprise codebases fun again.

[Siggi @siggi]

I've been building at the intersection of Bazel + coding agents for a few months and have some fun things to share. The first one is a hermetic, cross-platform Claude Code toolchain let's you easily use Claude in Bazel builds, tests, and runs. Link & more below!

[Dan Stowell @dnstow]

@buildbuddy is hiring ops-minded engineers.
Closest known title is SRE.

Really the job is "offer world-best build perf & uptime while driving customer costs down using colocated hardware and the cloud."

Write me / @siggi / @tylerbw to learn more.