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gregsadetsky

10,912 karma · joined November 7, 2010

hi@greg.technology

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Cofounder of a web mapping startup acquired by Apple.

Received awards from the US Coast Guard and the Governor General of Canada for creating a map that helped rescue 1,700 people during Hurricane Harvey.

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Currently refurbishing laptops with robots! https://www.reviserobotics.com/ (YC W25)

Also working on Disco, an open source self-hosting software: https://disco.cloud/

See my talk about it at the Recurse Center: https://youtu.be/z2lP7C8VT6M

And this (slightly less chaotic) Devtools FM episode: https://www.youtube.com/watch?v=Xr3JJpbCRP0

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And even more stuff that's wildly out of date - https://greg.technology • https://tandy.link/s/greg.technology

submissionscomments
gregsadetsky··on Show HN: Boing
just did! thank you
gregsadetsky··on Show HN: Boing
there are very specific starting points that do go wild - but it should mostly not show you those (and I should add some protection for it)

try reloading again?

gregsadetsky··on Show HN: Boing
added slomo mode! it's great, thank you!
gregsadetsky··on Show HN: Boing
how would that work haha. "send last boing"? and it's a permalink.... and it repeats the boing??? I'm... considering it! :-)
gregsadetsky··on Show HN: Boing
ahhhhhhhhhhhhhhhhhhh wow I'm dumb. working on it

EDIT: done! deploying.

wow ok that was a really good idea.

gregsadetsky··on Show HN: Boing
on iOS at least, that requires an additional permission, and it would take some work to get the feeling right on both iOS and Android

but I agree - I have some other mono-site-ideas like these in mind, and I think that the accelerator could be very fun. thanks for the suggestion!

gregsadetsky··on Show HN: Boing
Just downloaded Firefox on iOS and tested it and sound works here - can you check this other site please: https://learningsynths.ableton.com/ ?

There will also be no sound there if your phone is in Silence mode. However if Learning Synths works but not mine, then something else is happening.

Thanks!

gregsadetsky··on Show HN: Boing
Are you seeing the small dotted lines when pulling very far? It's meant to show the applied tension
gregsadetsky··on Show HN: Boing
It's not, unfortunately. I'd love to find a synthesized version of a boing sound. Perhaps some folks with modular experience could chime in?
gregsadetsky··on Show HN: Boing
Flask + SQLite in WAL mode.

In-memory ip address rate limiting.

Hosted and deployed on a ~$20 EC2 server using the open source tool I've been working on, https://disco.cloud/

We were at ~120 requests/second earlier and it took it on, no sweat.

gregsadetsky··on Show HN: Boing
please don't, but I can't stop you. :-) thanks!
gregsadetsky··on Show HN: Boing
you are right - just improved this and I think it looks a lot better (deploying now)

thanks!

gregsadetsky··on Show HN: Boing
I considered it for a minute, but then I remembered https://xkcd.com/1138/ .. ha. but let me know if you have other thoughts about this
gregsadetsky··on Show HN: Boing
there's rate limiting so the script posted in this thread actually mostly hits 429s :-) but yeah, great pointer
gregsadetsky··on Show HN: Boing
alright, I implemented a world boing counter :-) thanks for the great idea
gregsadetsky··on Show HN: Boing
Yes! I've been toying with this project idea for a few ~months, trying out most of the models out there. The physics and the look of the spring would come out quite crazy looking, so I put it on the back burner.

This is not an ad, there's no affiliate link... but the physics & drawing code were one shot by the recently released Gemini 3 Pro. It was pretty incredible to see. Additional tweaks & boing counter server by Claude Code.

gregsadetsky··on Show HN: Boing
very good observation! just fixed and pushed
gregsadetsky··on Show HN: Boing
I would love to, but iOS support doesn't seem possible - there's a trick [0] to make a hacky haptic vibration in javascript, but it doesn't work with the kinds of events here of drag&release. And (lame excuse, but) I don't have an Android phone to test the haptics to make sure they're semi realistic.

This might have to wait for the native app versions ha.

[0] https://progressier.com/pwa-capabilities/vibration-api

gregsadetsky··on Show HN: Boing
Yes, good sleuthing, that was one of the last remaining things I wanted to fix before launching.

Just fixed, should be live soon.

gregsadetsky··on Show HN: Boing
Make sure to unmute your device - either using the physical mute rocker on older iPhones, or by disabling Silent Mode (tap the bell in the Control Center)
gregsadetsky··on Show HN: Boing
Well spotted! I'd love a synthesized version - if anyone has pointers.
gregsadetsky··on Show HN: Boing
Of course! https://github.com/gregsadetsky/boing
gregsadetsky··on Show HN: Boing
Oh good point sorry. If you open the Control Center (drag down from the top left, typically), there should be a bell icon..?

That, or Settings -> Sounds & Haptics -> Silent Mode ?

gregsadetsky··on Anthony Bourdain's Lost Li.st's
I got to cross something off my bucket list - I just LinkedIn message'd B. J. Novak about this.....! Thanks for digging!

If anyone can find a contact for Devin Flaherty, let me know! Cheers

gregsadetsky··on Google Images: Shirts Without Stripes
The original github repo was about Google, Amazon and Bing searches all returning shirts with stripes (while these companies talk about their huge AI investments)

But the correct chatgpt results are also an interesting data point!

gregsadetsky··on Google Images: Shirts Without Stripes
This is my ~semi annual check of whether https://github.com/elsamuko/Shirt-without-Stripes still holds up - and it does!
gregsadetsky··on Show HN: I built an interactive HN Simulator
Cheers, congrats on the fast fix and congrats on the site - it's really well done and very funny!
gregsadetsky··on Show HN: I built an interactive HN Simulator
Someone found a "flaw" in your site and is currently spamming it to make a point... ie "TO SITE OWNER: ADD AN IP-BASED COOLDOWN TO AVOID SPAM"

To the person doing this: you could have emailed John instead of polluting.

gregsadetsky··on Solving Fizz Buzz with Cosines
There was another great satirical take on FizzBuzz which had something to do with runes and incantation and magical spells...? I sort of remember that the same author maybe even wrote a follow up? to this extremely experienced developer solving FizzBuzz in the most arcane way possible.

Does this ring a bell for anyone?

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Found it!

https://aphyr.com/posts/340-reversing-the-technical-intervie...

https://aphyr.com/posts/341-hexing-the-technical-interview

https://aphyr.com/posts/342-typing-the-technical-interview

https://aphyr.com/posts/353-rewriting-the-technical-intervie... (the FizzBuzz one)

https://aphyr.com/posts/354-unifying-the-technical-interview

wow.

gregsadetsky··on A misplaced wire label caused a power outage on a container ship, the NTSB finds
Related discussion: https://news.ycombinator.com/item?id=45984659
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