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jastr

HN member
Joined
Mon, Nov 21, 2011, 9:01 AM UTC
HN karma
561
Public activity
202 items

About jastr

CSV Explorer - Open CSVs with millions of rows

The Simple Postcard - Text a photo to send it as a postcard

Pretty Print Please - Pretty Print Invalid JSON

jason (an @ sign) csvexplorer.com

Recent public activity

  1. comment
    Comment #48484176

    Back in college, I thought I could compress my phone number by telling people its index in pi, but my 7 digit phone number is at an 8 digit index. I didn’t have the compute to find…

  2. comment
    Comment #47067266

    I had this too until I lowered it's memory limit. In ~/.duckdbrc `set max_memory='1GB';` or even less

  3. comment
    Comment #47067254

    By default, it tries to take 80% of your memory. I've found that you need to set it to something much smaller in ~/.duckdbrc `set max_memory='1GB';`

  4. comment
    Comment #33394678

    You can be my first user! https://postgraphs.com/ - it’s an old weekend project of mine that I’d like to finish up soon

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    Comment #32811351

    Similarly, watch a random walk solving a maze https://stripenight.com/random_walk.html

  7. comment
    Comment #32807128

    The best way to get software engineers to solve your issue with X is to phrase your question “Why is X so horrible? It can’t even do Y.” The engineers will inevitably reply “That’s…

  8. comment
    Comment #32252653

    I hadn't heard of Opera Unite. It's similar and 10+ years older! Thanks for the kind words - friends have been mostly confused by this project.

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  10. comment
    Comment #31184690

    Heroku's github integration has been down for 2 weeks

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  12. comment
    Comment #30275517

    > there's actually proportionally less failures in Product Hunts busiest period This is a really interesting post! I think there's a little survivorship bias. As Product Hunt grew …

  13. comment
    Comment #29600067

    This is advice that seems reasonable but is actually pretty harmful. Take a startup with a few users. The senior engineer decides they need pub/sub to ship a new feature. With Kafk…

  14. comment
    Comment #29551419

    This is a neat idea, but I think the site is a bit too barebones for people to want to trust with their data.

  15. comment
    Comment #29551299

    The article does a good job of explaining the difference between WHERE and HAVING. The simplest resource I've found for this is Julia Evans' "SQL queries run in this order" [0], wh…

  16. comment
    Comment #29544512

    This is quite a bit of infrastructure for an app that hasn't launched yet. If it's not too late, consider simplifying by removing RabbitMQ or Redis. Perhaps even getting rid of bot…

  17. comment
    Comment #29505398

    When you first hear Tailwind's concepts, they seem to contradict everything you know about good software design. When you try it out and begin to remember some of the class names, …

  18. comment
    Comment #29181597

    Hi HN! This was a python script I used on the command line for a while, before spending a weekend converting it to a microsite. Pretty print json with single quotes or None or anyt…

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  20. comment
    Comment #28907949

    Lots of developers believe that if they think hard enough and choose the right side project, it will succeed. I think the takeaway here is that chance plays a big role. So increase…

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  22. comment
    Comment #27775707

    Browser extensions will redirect HTTP to HTTPS as the request is made, so CoffeeShopWifi can't help you there. Most sites will send a redirect to HTTPS, which CoffeeShopWifi does n…

  23. comment
    Comment #27775230

    Neat to see all the alternatives. I'm not sure what non-technical folks do when faced with this problem, so I picked a friendly domain name. Ironically, if CoffeeShopWifi.com works…

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  25. comment
    Comment #27687791

    Hi HN, PrettyPrintPlease is a small weekend project that I’m excited to share. I work at a hardware company and spent a few months with our logistics team integrating a lot of outd…