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What CI looks like at a 100-person team (PostHog)

https://www.mendral.com/blog/ci-at-scale
31•shad42•4d ago

Comments

zX41ZdbW•1h ago
Two problematic statements in this article:

1. Test pass rate is 99.98% is not good - the only acceptable rate is 100%.

2. Tests should not be quarantined or disabled. Every flaky test deserves attention.

rkomorn•1h ago
On top of 2., new tests should be stress-tested to make sure they aren't flaky so that the odds of merging them go down.
lionkor•38m ago
I can run flaky tests on my machine a thousand times without failure, whereas they fail in CI sometimes.
lab14•57m ago
a test pass rate of 100% is a fairy tale. maybe achievable on toy or dormant projects, but real world applications that make money are a bit more messy than that.
YetAnotherNick•5m ago
Even something as simple as docker pull fails for 0.02% of the time.
IshKebab•1h ago
> Every commit to main triggers an average of 221 parallel jobs

Jesus, this is why Bazel was invented.

simianwords•1h ago
interesting that they have an agent that is triggered on flaky CI failures. but it seems far too specific -- you can have pull request on many other triggers.

there doesn't seem to be any upside on having it only for flaky tests because the workflow is really agnostic to the context.

elteto•27m ago
I think this is the first article that truly gave me “slop nausea”. So many “It’s not X. It’s Y.” Do people not realize how awful this reads? It’s not a novel either, just a few thousand words, just fucking write it and edit it yourself.
zeristor•19m ago
I'm guessing they have a workflow for blog posts, with 100k workflows I was wondering something seems a bit weird.

Kagi Small Web

https://kagi.com/smallweb/
217•trueduke•2h ago•43 comments

Kagi Translate now supports LinkedIn Speak as an output language

https://translate.kagi.com/?from=en&to=LinkedIn+speak
760•smitec•7h ago•189 comments

Reddit User Uncovers Who Is Behind Meta's $2B Lobbying for Age Verification Tech

https://www.gadgetreview.com/reddit-user-uncovers-who-is-behind-metas-2b-lobbying-for-invasive-ag...
154•doener•1h ago•28 comments

Building a Shell

https://healeycodes.com/building-a-shell
48•ingve•2h ago•12 comments

Leanstral: Open-source agent for trustworthy coding and formal proof engineering

https://mistral.ai/news/leanstral
603•Poudlardo•15h ago•129 comments

The unlikely story of Teardown Multiplayer

https://blog.voxagon.se/2026/03/13/teardown-multiplayer.html
128•lairv•3d ago•19 comments

Grace Hopper's Revenge

https://www.thefuriousopposites.com/p/grace-hoppers-revenge
39•ashirviskas•2h ago•31 comments

Reverse-engineering Viktor and making it Open Source

https://matijacniacki.com/blog/openviktor
50•zggf•4h ago•15 comments

What CI looks like at a 100-person team (PostHog)

https://www.mendral.com/blog/ci-at-scale
32•shad42•4d ago•9 comments

Gummy Geometry

https://newkrok.github.io/nape-js/examples.html?open=soft-body&mode=3d&outline=0
19•memalign•3d ago•3 comments

Meta’s renewed commitment to jemalloc

https://engineering.fb.com/2026/03/02/data-infrastructure/investing-in-infrastructure-metas-renew...
456•hahahacorn•18h ago•200 comments

Font Smuggler – copy hidden brand fonts into Google Docs

https://brianmoore.com/fontsmuggler/
11•lanewinfield•3d ago•4 comments

The American Healthcare Conundrum

https://github.com/rexrodeo/american-healthcare-conundrum
380•rexroad•19h ago•350 comments

The “small web” is bigger than you might think

https://kevinboone.me/small_web_is_big.html
454•speckx•19h ago•191 comments

Sci-Fi Short Film “There Is No Antimemetics Division” [video]

https://www.youtube.com/watch?v=3v8AsTHfAG0
134•Anon84•4d ago•29 comments

Every layer of review makes you 10x slower

https://apenwarr.ca/log/20260316
299•greyface-•8h ago•176 comments

US SEC preparing to scrap quarterly reporting requirement

https://www.reuters.com/business/finance/us-sec-preparing-eliminate-quarterly-reporting-requireme...
603•djoldman•12h ago•335 comments

Gitana 18: the new flying Ultim trimaran

https://www.boatnews.com/story/50717/gitana-18-radical-technical-choices-for-the-new-flying-ultim...
51•divbzero•4d ago•22 comments

Pyodide: a Python distribution based on WebAssembly

https://github.com/pyodide/pyodide
105•tosh•3d ago•25 comments

Fatal Core Dump Game

https://www.robopenguins.com/core-dump-game/
15•pabs3•4d ago•3 comments

My Journey to a reliable and enjoyable locally hosted voice assistant (2025)

https://community.home-assistant.io/t/my-journey-to-a-reliable-and-enjoyable-locally-hosted-voice...
381•Vaslo•23h ago•118 comments

Why I love FreeBSD

https://it-notes.dragas.net/2026/03/16/why-i-love-freebsd/
452•enz•1d ago•223 comments

Beyond has dropped “meat” from its name and expanded its high-protein drink line

https://plantbasednews.org/news/alternative-protein/beyond-meat-not-the-moment-rebrand/
146•rmason•15h ago•349 comments

Ryugu asteroid samples contain all DNA and RNA building blocks

https://phys.org/news/2026-03-ryugu-asteroid-samples-dna-rna.html
7•bookofjoe•18m ago•1 comments

Show HN: Oxyde – Pydantic-native async ORM with a Rust core

https://github.com/mr-fatalyst/oxyde
121•mr_Fatalyst•3d ago•62 comments

Starlink Mini as a failover

https://www.jackpearce.co.uk/posts/starlink-failover/
273•jkpe•1d ago•205 comments

Claude Tips for 3D Work

https://www.davesnider.com/posts/claude-3d
112•snide•3d ago•26 comments

Monkey Island for Commodore 64 Ground Up

https://pixeldust.se/monkey-island-project
151•aresant•8h ago•58 comments

AirPods Max 2

https://www.apple.com/airpods-max/
291•ssijak•22h ago•482 comments

AnswerThis (YC F25) Is Hiring

https://www.ycombinator.com/companies/answerthis/jobs/CNdatw5-founding-engineering-lead
1•ayush4921•15h ago