Hacker News

Top stories

Live mirror
30 storiesupdated just nowView source snapshot
  1. Cloudflare Quick Tunnels(cloudflare.com ↗)
    110comments
  2. An Empirical Study of Harness Design for Coding Agents(arxiv.org ↗)
    35comments
  3. There's no point at which turning your brain off will work(danluu.com ↗)
    3comments
  4. North Korean nuclear test sets off years of earthquakes(science.org ↗)
    66comments
  5. Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug(ledger.com ↗)
    discuss
  6. Show HN: Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash(cactuscompute.com ↗)
    14comments
  7. OpenJev(openjev.com ↗)
    202comments
  8. C++26: Trivial infinite loops are no longer undefined behaviour(sandordargo.com ↗)
    92comments
  9. I vibed a proof of Conway's conjecture(overreacted.io ↗)
    95comments
  10. Mathematicians Build Long-Awaited Graph Sandwich(quantamagazine.org ↗)
    3comments
  11. GrassLobster: AI Agentic Generation of Parametric Geometry Workflows(miro.vision ↗)
    3comments
  12. A heap overflow and SSO misconfiguration to compromise OpenAI internal repos(hacktron.ai ↗)
    179comments
  13. Show HN: Microsoft Office running with Wine on Linux with no virtualization(github.com/tombert ↗)
    40comments
  14. I don't like passkeys(hawksley.dev ↗)
    506comments
  15. BeanShell3 in Development(beanshell.github.io ↗)
    10comments
  16. US Treasuries Have Become Unappetizing for Foreign Central Banks and Governments(wolfstreet.com ↗)
    40comments
  17. Cekura (YC F24) Is Hiring(ycombinator.com ↗)
    discuss
  18. The Shadows Lurking in the Equations – Underwater Islands(gods.art ↗)
    9comments
  19. Jemalloc 5.4.0(github.com/jemalloc ↗)
    72comments
  20. NATS publishes preliminary report on technical incident of 8 September(nats.aero ↗)
    23comments
  21. The scourge of x86 emulation(fex-emu.com ↗)
    67comments
  22. Bonsai 2 27B: Near-Lossless Compression in a 9x Smaller Footprint(prismml.com ↗)
    176comments
  23. Warren Buffett Steps Down as Berkshire Chairman, Names Son to Replace Him(nytimes.com ↗)
    150comments
  24. Build Faster Feedback Loops Using Qualitative User Research(nseldeib.com ↗)
    discuss
  25. Qwen 3.8 Omni Flash(qwen.ai ↗)
    117comments
  26. Second Circuit Allows Government to Search Electronic Devices at the Border(knightcolumbia.org ↗)
    33comments
  27. Show HN: Scry, programmable internet search w/ congestion pricing(scry.io ↗)
    2comments
  28. Pre-Greek: The lost language hidden within Ancient Greek(linguisticdiscovery.com ↗)
    60comments
  29. How to Write with an LLM(sockpuppet.org ↗)
    191comments
  30. Microsoft exec called AI scraping 'the largest theft of labor in human history'(techcrunch.com ↗)
    620comments

CircleCI raises $6m Series A

161 pointsby 12y agoblog.circleci.com
47 comments
12y agoHN ↗

Super excited to see this news and what the CircleCI team have planned. Can't overstate how much I love CircleCI or how much easier it makes my life. Definitely one of the best services I use day to day.

Congrats to the team! It's well deserved.

12y agoHN ↗

I feel like I owe a special thanks to the HN community. You guys were CircleCI's first customers, and we learned almost everything we know about building a business and having happy customers from HN. This community is amazing, and so much of our success is due to you guys!

12y agoHN ↗

congrats, Paul & team! Great progress for an awesome product

12y agoHN ↗

congrats!

my team and i are big fans of your product

12y agoHN ↗

Congrats Paul! We'll keep spreading the word!

-Mike Schroll

12y agoHN ↗

Congratulations!

The best thing about Circle for me is how fast it is, but more importantly, how fast it appears to be. Some of it I can attribute to clever tech (running tests in parallel in multiple containers for the same build is something that never occurred to us), but a major part is also clever UX.

12y agoHN ↗

Good job guys, product looks nice!

We currently pay for Codeship, anybody experienced both and have some insights to share? (not trying to start a war here!)

12y agoHN ↗

I personally pay for Codeship for my own projects, and we pay/use CircleCI at up.co. I love both. Both have given us pain in random edge cases where things just don't work, which is frustrating. Both have provided amazing support whenever we needed it. Both have all of the technical needs we require. Both accommodate the exact same Github-based workflow with Heroku & Hipchat.

My suggestion: flip a coin. Or choose based on something arbitrary like which website design you like more. They are both great startups that deserve your business.

12y agoHN ↗

Congrats Paul, Allen and team. It's been a pleasure to see CircleCi grow into the incredible fast CI service with a real detail in the UX of integrating into developer workflow.

Can't wait to see what you do next.

12y agoHN ↗

We've been using CircleCI for a few weeks and it's been a great experience. The product is great and their customer service was awesome - they got back to me almost immediately to help me fix a bug on my end. Great stuff!

12y agoHN ↗

We've been on CircleCI for months now and in addition to being an absolutely fabulous product the support has been astounding. Congrats guys, well deserved.

12y agoHN ↗

Awesome -- hopefully now they can address the memory leak :] (CircleCI is wonderful otherwise).

12y agoHN ↗

Does Circle have a way to give builds more RAM yet? We really liked Circle when we first tried it at Conspire but the 2GB cap meant we couldn't stay with it and we've been fighting Jenkins on a daily basis ever since. Our tests involve spinning up 5-6 JVMs to simulate an Akka cluster so we need a lot of RAM.

12y agoHN ↗

The limit has since been bumped to 4G. We don't have a way to change this per-customer yet, but we're not as tightly constrained for RAM as we used to be, so we could probably negotiate something if you really need more.

12y agoHN ↗

What issues have you run into with Jenkins? Just curious.

12y agoHN ↗

A few times a week is decides to re-download all our dependencies for reasons we haven't been able to figure out. That's the big one we've been dealing with right now.

12y agoHN ↗

We faced the same 2GB memory limit with akka, so we moved to our own jenkins instance, no issues since.

12y agoHN ↗

CircleCI made possible a fundamental change in our dev process. It is now an integral part of our QA process and is present at every step of development.

12y agoHN ↗

Congratulations! We've been happily using CircleCI as part our test/deploy workflow for a few months. Github and Hipchat integration works great, the web UI is easy to use, and ssh and parallelization are nice bonuses.

12y agoHN ↗

We use CircleCI heavily at Wave. Love their parallelization feature - we brought a 25 minute test run down to 12. We could speed that up another 4x or so if we felt like throwing more money at it.

12y agoHN ↗

Congrats to Paul and the rest of the team! I have been recommending CircleCI to all of my dev friends ever since my first experience with it over a year ago.

We had a pretty tricky front end testing setup with our Rails app, due primarily to some bleeding edge javascript interactions that needed to be tested in a headless browser. It took ages to get right locally, so I had zero confidence that Circle would handle it. I set up our repo and promptly forgot about, as I was traveling out to SF for Startup School 2012.

While waiting in the lobby of YC for the pre-event dinner, I got an email from Circle (actually, from Paul) that our repo was ready and all tests were passing. PASSING?! Whoa. As I read it, I looked up from my phone and Paul was standing in front of me. I wanted to give him a hug, but I settled for a friendly thank you and a handshake. =)

12y agoHN ↗

Can you share what you like most about CircleCI? What do you hate most about it?

12y agoHN ↗

For us, it just worked. I'm a one-man engineering team at a startup, so I don't have the resources to devote to running an in-house CI setup. Circle took care of it for us, and their UI and features are just perfect.

12y agoHN ↗

Huge congrats to Paul & Co - great team, with a great product. It's a genuine joy to watch them do well.

12y agoHN ↗

Congrats! My experience with CircleCI has been nothing but positive.

12y agoHN ↗

Saw these folks at CloudBeat last year. Thought their pitch was terrible but OMG did I love the product (I still thought they should've won!).

Really glad to see they successfully raised a series A. I believe it was Paul who pitched and when I went up to him afterwards I was blown away by how humble, polite and just plain nice he was. Wishing these folks the best of luck :).

12y agoHN ↗

Congrats! We use you guys and you absolutely deserve it.

Also, thanks for the stickers!

12y agoHN ↗

This may just be the push I needed to investigate what CircleCI is and what services and/or products it provides.

12y agoHN ↗

Reach out if you need any help; paul@circleci.com

12y agoHN ↗

Congrats!

Good to see a Clojure based stack going places. We use it and have been super happy with it.

12y agoHN ↗

Congrats, guys. Another big circleci fan here. Can't wait to see where they go.

12y agoHN ↗

Congrats guys. Always nice to have more examples of "See? We're not all doing mobifotosocialgames." Particularly when they're doing so well.

12y agoHN ↗

Instead, they're helping people doing mobifotosocialgames.

It's a good business selling pickaxes during the gold rush.

12y agoHN ↗

We use Circle at my Rails consultancy. They make us more productive, which in turn helps us work from wherever we want—a coffeeshop near home or anywhere in the world.

Also, we're using Circle to help with a project for monthly life skills training workshops. Not only will this project save the workshop staff 180 hours a month, but will also make it far easier for trainees to register for the workshop. Circle is, indirectly, working to make thousands of people's lives better each year.

Congratulations Circle, we're really happy for you guys!

12y agoHN ↗

CircleCI is really neat, going to ditch the slow CloudBees build server as soon as CircleCI gets the last remaining issues sorted out. Hope the money lets them hire someone who can write proper docs and changelogs :-)

12y agoHN ↗

Congrats, we're a customer and we're approaching 10K builds...

12y agoHN ↗

Your guy's product is such a boon. Can't even begin to count the hours...no, weeks saved due to it. Great to hear it.

12y agoHN ↗

Am I right that it only supports github repos? Because however awesome github is, I just prefer not to count how many repos I have. In other words, does it support any git repo? Can't find it anywhere on their pages.

Would make me sad not to be able to use circleci, which has straight forward use and value prop.