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j42

HN member
Joined
Thu, Sep 25, 2014, 10:12 PM UTC
HN karma
324
Public activity
94 items

About j42

https://j42.me

Polyglot developer. Perpetual learner. Technical consultant. CTO of two companies, owner of one other.

Practical experience with just about every type of application (enterprise, low-latency exchange, SaaS, SEO, et al) and native via React;

Currently working on: data & ML experiments in Haskell. Currently working on: hackers-handbook.com (CTO's all-in-one guide to devops and life and such...)

Have a question? Want to chat?

julian@j42.me

Recent public activity

  1. comment
    Comment #10902478

    This is actually quite fascinating (and part of my upcoming book...) Despite the obvious high/low-level language differentials, people have been managing multi-million-line C code-…

  2. comment
    Comment #10882738

    Oh it absolutely is, and I'm on your side. My point though, is that it's always a "secondary" or "tertiary" business concern... a point emboldened by the number and frequency of da…

  3. comment
    Comment #10878560

    Probably because very little innovation happens to any long-standing protocol until it becomes a primary business concern. Almost every business relies on OpenSSL or some equivalen…

  4. comment
    Comment #10805402

    I do think there's some value to pointing out the irony though; two men from two cultures that couldn't be more distinct, with titles that could be synonyms, using what is essentia…

  5. comment
    Comment #10780608

    You seem extremely knowledgeable about high-performance servers! Your example is fantastic -- I realize it's written in C, but perhaps you could explain how in the context of a too…

  6. comment
    Comment #10779771

    Can you tell me where I may find more info on KDB or how this may compare to more traditional serving options for static resources, HLLs or anything that might fit well in a large …

  7. comment
    Comment #10746203

    Hah, the way you phrase that makes me wonder what you found. Right now really just web apps. Content sites are doable, and I know people running networks, but it's not possible to …

  8. comment
    Comment #10745832

    Not exactly, I think it was a poor choice of words as I was referring to my build/deployment tooling. If I have an idea (e.g. a "ES2015 to ECMA6" converter), I'd look for a library…

  9. comment
    Comment #10743419

    I have two books in my queue actually, and this is one of them. There are parts of my content-property model I'm not ready to share, but most of it has been structured into a cohes…

  10. comment
    Comment #10742974

    Well, "startup" is a poor choice of words, but he actually has a half-decent idea. As someone who owns dozens of little "tool" sites (think less/scss converters, meme generators, J…

  11. comment
    Comment #10723729

    It's really interesting to see services like this emerge. In my opinion, the merchant processing/gateway revolution happened when providers (Stripe, Braintree, et al) started provi…

  12. comment
    Comment #10565969

    You may have misunderstood me there. Yes, Islam is a particularly violent religion -- if you have read the Koran, many of its concepts seem very incompatible with the idea of a fre…

  13. comment
    Comment #10564230

    It does if you play devil's advocate and follow the chain of reasoning. If god is great and non-believers are bad and "god" says it's righteous and just to punish the non-believers…

  14. comment
    Comment #10555225

    As someone who develops high-performance systems and is continually learning, I think this is a fantastic idea! Honestly, something that seems desperately needed as that knowledge …

  15. comment
    Comment #10552054

    Because it has never been a question of who is deserving of what... The poor have no leverage, and realistically, no one is going to give that to them. We're not talking about an i…

  16. comment
    Comment #10485395

    I was actually planning on testing a 33% deployment this evening, I guess what I'm really wondering is that because this is a low-level networking adjustment that modifies locking …

  17. comment
    Comment #10485301

    Can anyone comment on whether it would be a good or bad idea to try to implement this in production ASAP? I'm a bit far removed from the Linux kernel to be comfortable auditing tha…

  18. comment
    Comment #10463532

    It's because there's at least one person on-board the company who understands the technical underpinnings, and has incentives that (usually) align with shareholders -- versus consu…

  19. comment
    Comment #10404215

    I'm not sure I see that as a fatal flaw... ultimately, the user is sitting in front of a digital box that can guide and prompt them in all the same ways a researcher can--the only …

  20. comment
    Comment #10400339

    I'm afraid you're misinformed, but for socially-conscious individuals (ie, they don't support a scorched-earth, ends-justify-the-means policy to get that $250,000* from your nephew…

  21. comment
    Comment #10400292

    This. Everyone should take note of the proper way to fight encroaching copyright law: If you are a programmer, security researcher, artist, or entrepreneur you can make a differenc…

  22. comment
    Comment #10400096

    I'm truly confused by your message, because your latter statement sounds as if you are in agreement? No one (intelligent) is trying to make a moral argument for 'piracy' or media e…

  23. comment
    Comment #10399535

    Actually, piracy is the act of forcefully commandeering another's maritime vessel; theft is the legal act of taking & depriving another of property, and I'm really not sure what "f…

  24. comment
  25. comment
    Comment #10366234

    I'm the original poster, and I was talking about ads, not metered queries. :) [edit] and perhaps that was a poor choice of words. as a developer of high-volume low-latency exchange…