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samwho.dev
That guy who makes visual essays about software at https://samwho.dev. He/him.
3,796 posts 7,310 followers 726 following
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I have a small set of 32-bit integers and want to find any integer that is not in the set in linear time and constant space. Is there a bit-fiddling trick to do this? I have a solution, but it only works (efficiently) because I am using fixed-width integers. Short #programming 🧵

submitted 6 hours ago • 4 comments

Folks, I’ve had a semi-bonkers idea for a thing, and I’d like to ask for your help! If you live in mainland Europe and you know of an especially nice indie bookshop — one that stocks typography books *and* hosts events — would you mind sending some recommendations my way, please?

submitted 6 hours ago • 3 comments

CSS uses a complex algorithm to decide how to animate transforms. If you get it wrong, as many folks do, you end up with an unnatural animation. Here's how it works, and how to avoid the pitfalls. jakearchibald.com/2025/animati...

submitted 1 day ago • 12 comments

We say code is read more than it’s written. But it’s run way more than both. A post from @samwho.dev stuck in my head—so I wrote about the real cost of ignoring performance: [Code is run more than it's read, and we should act like it](buff.ly/1CfwCiZ) #programming #performance #wirthslaw

submitted 2 days ago • 0 comments

I was recently introduced to Alec Steele’s YouTube channel and I think this is the only thing I will be watching for several weeks.

submitted 2 days ago • 3 comments

Dads: what’s your best “oh shit, let’s clean this up before mum gets home” story you’ve had with your kids?

submitted 2 days ago • 2 comments

Has there been a substantial data breach of OpenAI or Anthropic yet? Going to be _wild_ when it happens.

submitted 3 days ago • 3 comments

I’ve been out of the Ubuntu game for a while but I installed it on my RPi because it seems to be the most supported distro and I just want an easy life. Come across the first thing that’s only available as a “snap” and my question is: what the fuck is “snap”?

submitted 3 days ago • 6 comments

🥹

submitted 3 days ago • 1 comment

If you’ve not seen them before, Jake’s interactive intro to CRDTs is absolutely fantastic. jakelazaroff.com/words/an-int...

submitted 3 days ago • 3 comments