Will Sewell

@willsewell_

Engineer , using Go and Haskell. Blogs at . Co-organiser

London
willsewell.com
Joined May 2013
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  1. Aug 21

    Prime numbers are fascinating

    First 1e6 integers, represented as binary vectors indicating their prime factors, and laid out using the sparse matrix support in 's UMAP dimensionality reduction algorithm. This is from a 1000000x78628 (!) binary matrix. Very pretty structure emerges.
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  2. Retweeted
    Jul 31

    Today , we are celebrating general availability of our push notifications product ! 🎉 Exciting times and hoping this will be the first of many 😀

    3 retweets 13 likes
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  3. Jul 30

    As an added bonus, I found the final section on the ethical problems of data collection and analytics to be pertinent at this time. These issues are important not just for software developers, but also for other key decision makers in organisations.

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  4. Jul 30

    It's not often I read a technical book cover to cover, but that's what I've just done for 's . Excellent book. The chapters on distributed data: "replication", "partitioning", "transactions" are especially useful for backend system design.

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  5. Retweeted
    Jul 26

    If you put chalk under a powerful microscope—white cliffs of Dover type chalk, not the modern blackboard variety—you will see something like this Because it's not just a rock. It's an accumulation of ancient skeletons: the armored husks of single-celled, ocean-dwelling plankton

    646 replies 19,529 retweets 57,275 likes
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  6. Jul 26

    The key takeaway from the first couple of chapters was the "measures" that are predictors of organisational performance. These measures are: * Lead time * Deployment frequency * Mean time to restore * Change fail percentage

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  7. Jul 26

    We've started a book club at work reading the Accelerate (). It describes how to build successful engineering teams, based on surveys of existing companies and statistical analysis (science!)

    1 reply 5 likes
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  8. Jul 26

    If you're running a reverse proxy, make sure the backend timeout is greater than the timeout on the backend server itself. This way you are able to distinguish between client and server errors, rather than sending 5xx for all timeouts from the proxy.

    1 reply 1 retweet 8 likes
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  9. Jul 18

    Done in 25 mins. About 20 seconds better than last year, but with a lot less training. Can't complain!

    Every year we get better and better for the ! Our team was ace 😃!
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  10. Jul 15

    I really hope Apple doesn’t discontinue the SE. Bigger is not better! I might have to just buy the same phone again, with more storage..

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  11. Jul 6

    Cool venue for ⁦⁩!

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  12. Retweeted
    Jul 5

    Today is the day! We are releasing the first ever State of report! Read what 2,744 fellow Kotliners think about it, how they learn, and what they use it for.

    26 retweets 31 likes
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  13. Retweeted
    Jun 21

    Celebrating 's 10 Trillionth message in true style, with new t-shirts and prosecco 👕🍷👌

    3 retweets 13 likes
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  14. Jun 18

    A hefty milestone for ! This post blog post provides an excellent overview of how we can horizontally scale the Pusher Channels pub/sub message bus.

    You know what's cool? 10 Trillion messages sent over Channels! 13 zeroes. My buddy explains what went into making this a reality! 🚀
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  15. Jun 10

    Also, that guy's tie 📚🤓

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  16. Jun 10

    This reminds me of the way some people talk about stock. I wonder if history will repeat itself?

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  17. Jun 7

    That’s the gist of the solution! – at Skills Matter

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  18. Jun 7

    ⁦⁩ about to get started on how we solved SSO for k8s at ⁦.⁩ Good luck!!

    1 reply 2 retweets 6 likes
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  19. Jun 3

    The blog post is excellent, and I am glad that it exists. However its existence points to poor language ergonomics and a deficiency in the official docs.

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  20. Jun 3

    I find myself googling 's "Channel Axioms" post almost every time I use channels in Go. Hands up if this is you 🙌

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