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Jonathan Grynspan

@grynspan.me

Might know what he's doing. (Says as much on his business cards.) Any ol’ pronouns will do. 🦻🏻

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17.11.2024
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Latest posts by Jonathan Grynspan @grynspan.me

They're a traditional Purim cookie among Ashkenazi. They're not associated with Bar Mitzvot or the more widely-known holidays like Hanukkah, so it's not entirely surprising if you've never seen them.

Purim's fun though!

01.03.2026 22:47 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Also the trace amounts of opium!

01.03.2026 21:35 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Swift Compiler Backend Engineer - Jobs - Careers at Apple Apply for a Swift Compiler Backend Engineer job at Apple. Read about the role and find out if it’s right for you.

The Swift Performance team isn’t *my* team, but they’re in my hallway. Or in London if you’d prefer. They’re looking for an engineer who’s not afraid of optimizers. jobs.apple.com/en-us/detail...

27.02.2026 23:58 πŸ‘ 24 πŸ” 16 πŸ’¬ 2 πŸ“Œ 0

1860

16.02.2026 23:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I see no downsides!

14.02.2026 14:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The French _semaine_ ("week") is just a sloppy pronunciation of _sept matins_ ("seven mornings", from Latin _septimana_) and this vexes me.

14.02.2026 13:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I'm like two centimetres to the northeast there.

09.02.2026 13:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The biggest issue is that, contrary to what many people who really should know better say, space is a bad place to vent heat. It is very hard to vent heat in near-vacuum. You may have heard that space is cold but "cold" is a very counterintuitive idea in an environment without much matter.

05.02.2026 13:24 πŸ‘ 150 πŸ” 23 πŸ’¬ 8 πŸ“Œ 0

I could just… mail you my copy. I'm not using it.

27.01.2026 13:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Stop that.

22.01.2026 14:31 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'll take a Deep Sea please. Two, actually.

20.01.2026 14:46 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Ceci n'est pas un pyramid scheme?

19.01.2026 02:25 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Fucking diaper boxes, man.

04.01.2026 04:46 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

no

burrito every day

02.01.2026 14:17 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Is "coma until it all blows over" an option?

28.12.2025 14:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Snowed in at the in-laws for an extra day. 🫠

26.12.2025 16:31 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Shrek actually *is* a Disney film now!

22.12.2025 11:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Oh man… Farnham's Freehold.

07.12.2025 00:13 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Swift Compiler Engineering Manager - Jobs - Careers at Apple Apply for a Swift Compiler Engineering Manager job at Apple. Read about the role and find out if it’s right for you.

Any great managers following me and looking to switch gigs? :-) work with compilers and tools with my team.

London based!

jobs.apple.com/en-us/details/...

14.11.2025 01:57 πŸ‘ 8 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0

My whole life I've heard the Democrats described with the phrase "snatching defeat from the jaws of victory."

10.11.2025 15:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yet you and I never seem to be able to meet before midnight.

07.11.2025 11:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Capture the current working directory early on OpenBSD. by grynspan Β· Pull Request #1388 Β· swiftlang/swift-testing This PR adds some OpenBSD-specific code to capture the current working directory as early as possible. We then use that directory when argv[0] appears to be a relative path so that the following in...

There's something aesthetically pleasing about porting code to a new OS and getting it green in CI. And then there's OpenBSD. github.com/swiftlang/sw...

03.11.2025 20:52 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Ours is an Ice Age popcorn bucket from 2002 (which raises questions as I never saw it in theatres), but same idea.

31.10.2025 14:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Odds of this post triggering a war: non-zero.

27.10.2025 23:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Meme of two astronauts observing the Earth from afar. One astronaut is pointing a pistol at the other, who is facing away and doesn't see it. "Wait, it's all ANCIENT GREECE?" says the doomed astronaut. "Always has been," says his soon-to-be killer.

Meme of two astronauts observing the Earth from afar. One astronaut is pointing a pistol at the other, who is facing away and doesn't see it. "Wait, it's all ANCIENT GREECE?" says the doomed astronaut. "Always has been," says his soon-to-be killer.

I kind of wonder what would happen to one of those Greek-statue accounts if they learned about the Seleucid Empire.

27.10.2025 23:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

They do have a franchise on Bay Street, of all places!

In any event let me know next time you kids are in town!

25.10.2025 23:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Centre Street Deli before you leave.

25.10.2025 23:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

"Gotye and Similar Artists"

Music app, you grossly misunderstand the situation here.

22.10.2025 12:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

That thread is a fever dream.

14.10.2025 15:41 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

You might need to travel internationally. 😬

29.09.2025 21:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0