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jbaudanza

2,059 karma · joined July 22, 2010

www.hiworker.com www.captionpop.com

jon@jonb.org

meet.hn/city/kr-Seoul

Socials:

- x.com/jbaudanza - github.com/jbaudanza

Interests:

AI/ML, Mobile Development, Open Source, Programming, Startups

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submissionscomments
jbaudanza··on Show HN: Subnetchat – Web based chatroom for your local subnet
I'm interested in any feedback. The source is available at https://github.com/jbaudanza/subnetchat
jbaudanza··on Show HN: Jindo – minimalist reactive backend for JavaScript applications
Thanks for the feedback! Part of our roadmap includes "server-side" observables. This will allow state to be calculated and cached on the server side, so that clients don't have to recalculate the state of the universe every time there is a page load.
jbaudanza··on San Francisco Firefighters Become Unintended Safety Net for the Homeless
I'm hoping the proliferation of self-driving cars in San Francisco will bring about some alternative to emergency sirens, but who knows.
jbaudanza··on San Francisco Firefighters Become Unintended Safety Net for the Homeless
An unfortunate side effect of the overuse of these emergency vehicles it that makes it difficult for residents to get a healthy night's sleep. Frequent sirens and air-horns are the number #1 cause of noise pollution in the Tenderloin. Many residents here are elderly and low-income and cannot afford double-paned windows and thick curtains to protect from the noise.
jbaudanza··on The default config of Airbrake's gem will crash multithreaded Rails servers
Summary: There is a bug in Airbrake's gem that will cause a connection-pool leak in multithreaded Rails instances. This leak will eventually cause your app to crash.

I'm posting this here because this is a very common configuration and I imagine there a lot of people dealing with unexpected Rails crashes that are hard to track down.

The bug is actually fixed in master, Airbrake just needs to push a new gem.

jbaudanza··on The Cryptographic Doom Principle
What do you do with the random tokens after you've generated them?

The author's proposed solution of "Encrypt then authenticate" seems pretty reasonable.

jbaudanza··on Facebook Launches Flow, Static Type Checker for JavaScript
It looks like Flow should work to the extent that it can infer types from your CS output, but it will be tricky to embed explicit types into your CoffeeScript source.

You can probably hack it using the backtick operator though.

    `function foo(x: string, y: number): string {`
    x.length * y
    `}`
jbaudanza··on Show HN: Projects from “Stupid Shit No One Needs and Terrible Ideas” Hackathon
That "Focus Tools" chrome extension looks like it could potentially help me from getting distracted. Disqualified!
jbaudanza··on AWS Lambda
It would be nice if a lambda could respond to web requests. Maybe an Elastic Loud Balancer could be an "event-source".
jbaudanza··on React v0.12
https://gist.github.com/sebmarkbage/07bbe37bc42b6d4aef81
jbaudanza··on Hashids – Generate short hashes from numbers
I've used the Blowfish cipher to obfuscate database IDs into youtube-like URLs. Blowfish has a small 64-bit blocksize which fits nicely into a base64'd URL param.
jbaudanza··on [dead]
All proceeds will go to wishbone.org. Wishbone is a great charity that helps send low-income kids in the bay area and NYC to extracurricular classes and activities.
jbaudanza··on Seoul Moves to Ban Uber, Plans Own App
I think you are underestimating how competitive the ridesharing market is.
jbaudanza··on Seoul Moves to Ban Uber, Plans Own App
If Uber did this, their business would get eaten up by Lyft and other competitors. There is very little to prevent users from changing ride sharing companies, so they must compete fiercely on price.
jbaudanza··on The Bitcoin mining network is offline
blockr.io is only showing one block more than blockchain.info.
jbaudanza··on The Bitcoin mining network is offline
There has only been one block mining in the last two hours. Something appears to be affecting the miners. Does anyone have any more info?
jbaudanza··on Help these low-income kids attend pre-college programs
I went a "computer camp" when I was about that age. I learned a lot but also I got to meet and interact with like-minded young nerds. I really enjoyed it. Best of luck!
jbaudanza··on Coding the Movies – Don’t Fake It
I also think it's interesting how TV and movies portray caring for gunshot victims.

In the movies, the first priority is to remove the bullet from the victim, usually in a dramatic and agonizing way. Once the bullet is removed, the victim is miraculously cured.

In reality, the first priority is to stop the bleeding. Most of the time, doctors won't even attempt to remove the bullet. The bullets are sterilized from the explosion, and you'll generally do more harm than good by trying to remove it.

jbaudanza··on Bitcoin Price Pressure
Coinbase is hosted on Heroku. So you are also trusting that Heroku and AWS don't have any disgruntled employees with production access that want to be instant millionaires.
jbaudanza··on Show HN: Bid with Bitcoin to write whatever you want on my web page
Thanks! Got it!
jbaudanza··on Show HN: Bid with Bitcoin to write whatever you want on my web page
Thanks! The site is build on top of a JSON api that would definitely allow this. This is sort of a "proof-of-concept" version, but there's a lot you could build on top of the concept.
jbaudanza··on Show HN: Bid with Bitcoin to write whatever you want on my web page
Thanks! You can make your own at https://www.coinsayswhat.com/pages/new
jbaudanza··on Inclusiveness at Mozilla
For comparison, this is Google's position on Prop 8:

http://googleblog.blogspot.com/2008/09/our-position-on-calif...

The tech and open source community owes a lot to its LGBT contributors. When their rights are being threatened, we should be the first in line to offer support. That is why this situation is so upsetting to many of us.

jbaudanza··on 2048 in 3D
sent!
jbaudanza··on 2048 in 3D
Thanks man. Do you take BTC tips? :)
jbaudanza··on 2048 in 3D
Thanks! Looking forward to playing
jbaudanza··on 2048 in 3D
Derivative request: Can someone make a version that displays values in hex instead of decimal?
jbaudanza··on Ask HN: A botnet may be attacking our site right now, how should we respond?
What does your stack look like? If you're running a ruby app, check out rack-attack: https://github.com/kickstarter/rack-attack

It was created by kickstarter to fend off these kind of attacks.

jbaudanza··on Show HN: GitPrint.com – A site to easily print Markdown files on GitHub
This is great! In the past, I've had to write kudgy scripts to do this. Two features requests:

  - Syntax highlighting on code blocks
  - Ability to insert page breaks
Great work!
jbaudanza··on Satoshi Nakamoto denies being Dorian Nakamoto
Direct link to Satoshi's post:

http://p2pfoundation.ning.com/forum/topics/bitcoin-open-sour...

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