Leo McArdle 🇺🇦
leo.mca.is
Leo McArdle 🇺🇦
@leo.mca.is
London based software engineer at Mozilla, working on MDN. Amateur photographer, enthusiastic cook, and a fan of (almost all) sports. Curious about travel policy and public health.

https://leo.mca.is/
I'm so so happy to get this out. It never felt great using a bloated SPA to serve users documentation about the latest and greatest web standards. Now we have a frontend I feel incredibly proud of.

I'll be writing a technical deep dive soon, we've done some interesting things worth sharing.
August 19, 2025 at 5:46 PM
Reposted by Leo McArdle 🇺🇦
Anyone who thinks you can solve London's housing crisis, the product of several decades of not building enough houses, without building more houses, does not deserve to be taken seriously. Nor does anyone tagging the NIMBY ultras of CPRE into a discussion on housing.
May 10, 2025 at 9:22 AM
Reposted by Leo McArdle 🇺🇦
LIGHTNING STRIKES RICE
April 8, 2025 at 8:30 PM
Reposted by Leo McArdle 🇺🇦
Vance is a fucking snake. Trying to pretend other people have to show decorum as he’s out there calling Zellensky a loser. Fuck that guy.

How can America look at how they ganged up on Zellensky like a pair of bellowing kids & feel good about this
February 28, 2025 at 6:00 PM
That's where the argument needs to be had, is the use of copyrighted works in training a model "fair use"? And even if it is, does a model spitting out something near identical to a copyrighted work violate an author's copyright at that point? These are not simple questions to answer
January 15, 2025 at 10:55 AM
Don't want to be "that guy" but Osman's framing of the argument is nonsense: the poster has "used a copyrighted work" in copying a section from the article: I presume the poster didn't ask The Guardian for permission, and hasn't paid for it, but they haven't stolen it - it's covered by fair use!
January 15, 2025 at 10:55 AM
Not just that driving is free, but that driving itself is a default state of nature: like it's impossible to get anywhere without a car, and everyone and everything bar the car should be inconvenienced so that drivers can get everywhere as quickly as possible
January 6, 2025 at 6:07 PM
Your car doesn't have a bonnet, A pillars, blind spots, and weigh a tonne? Sorry to break it to you mate but your car might be a bicycle
January 5, 2025 at 2:45 PM
Surely the issue is the cyclist saying "I thought people would get out of my way" which betrays a fundamental misunderstanding of the hierarchy of vulnerability in the highway code (indeed cyclists should "get out the way" of pedestrians, as I do on my bike)
January 5, 2025 at 1:26 PM