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Justin

@jaffray.bsky.social
563 followers 276 following 477 posts

turning to the succor of modern computing machines, let us renounce all analytic tools buttondown.com/jaffray justinjaffray.com

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Justin @jaffray.bsky.social · 27/09/2026
i dont think i really realized how easy whipping up a little state machine in C is. too abstraction-brained
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Justin @jaffray.bsky.social · 25/09/2026
lmao. this is presented as a reason why you SHOULD believe DHH's opinions on software
…we end up with a backend that requires 99% less CPU, 95% less memory, and the only reason it needs 10 hosts is for redundancy. In fact, our back-of-the-envelope calculation has led us to believe that Hey’s peak traffic could probably be served on a single Raspberry Pi.
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Justin @jaffray.bsky.social · 22/09/2026
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Justin @jaffray.bsky.social · 22/09/2026
hmmmmm explosions pretty crappy rn and i am not sure if i can fix it without running into sprite budget problems
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Justin @jaffray.bsky.social · 21/09/2026
i figured out i can get better resolution on these #gbdev #ufo50
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Justin @jaffray.bsky.social · 20/09/2026
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Justin @jaffray.bsky.social · 15/09/2026
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Justin @jaffray.bsky.social · 15/09/2026
laying out tiles
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Justin @jaffray.bsky.social · 15/09/2026
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Justin @jaffray.bsky.social · 14/09/2026
got my buddy to port the music over (sry my gameboy speaker is rattly)
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Justin @jaffray.bsky.social · 12/09/2026
the game boy can produce mind boggling effects
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Justin @jaffray.bsky.social · 05/09/2026
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Justin @jaffray.bsky.social · 05/09/2026
hmmmm
in rhai values have different semantics once they're closed over
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Justin @jaffray.bsky.social · 29/08/2026
finally this is a trophy and not a badge of shame
boxed copy of dqv
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Justin @jaffray.bsky.social · 29/08/2026
finished dqv on my fifth? try. took so long bc i stubbornly insisted on playing through the untranslated original. some day i will play them all except for the annoying ones
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Justin @jaffray.bsky.social · 29/08/2026
found your myers briggs
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Justin @jaffray.bsky.social · 17/08/2026
still think this is a pretty brilliant solution ("use an algebraic parser model specifically because it can be sanely modified at runtime") to a pretty niche problem ("the language we have to support has no facilities for abstraction"). makes me happy every time i think about it
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Justin @jaffray.bsky.social · 06/08/2026
i always thought ff3 on ds was a really lovely level of fidelity
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Justin @jaffray.bsky.social · 02/08/2026
developing a new theory of gamer
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Justin @jaffray.bsky.social · 23/07/2026
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Justin @jaffray.bsky.social · 19/07/2026
this country is so powerful
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Justin @jaffray.bsky.social · 09/07/2026
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Justin @jaffray.bsky.social · 02/07/2026
830338
Justin @jaffray.bsky.social · 02/07/2026
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Justin @jaffray.bsky.social · 24/05/2026
a good time
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Justin @jaffray.bsky.social · 20/05/2026
wakle skade
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Justin @jaffray.bsky.social · 17/05/2026
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Justin @jaffray.bsky.social · 16/05/2026
pen plot made for @eatonphil.bsky.social : diagrams for every closed, linear lambda calculus expression with exactly three variables
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Justin @jaffray.bsky.social · 10/05/2026
they got metal slug here. i died on mission three though
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Justin @jaffray.bsky.social · 03/05/2026
getting to jabu jabu
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Justin @jaffray.bsky.social · 26/04/2026
motto at my new ai startup i’m cto of
screenshot from kingdom hearts 2

ignorant users
obey the mcp 

That MCP sure doesn’t know when to quit, does it?
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Justin @jaffray.bsky.social · 21/04/2026
wizards with the cope energy amulet
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Justin @jaffray.bsky.social · 07/04/2026
so so on most of it but this paragraph in particular is…
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Justin @jaffray.bsky.social · 24/03/2026
‘May I, Papa?’: McDonald’s Is Releasing A New Fig And Ladyfinger McFlurry For Fancy Little Boys Who Desire A Treat
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Justin @jaffray.bsky.social · 24/03/2026
every time i do this fight with brad i laugh because its so silly. it has some really great mechanical jokes, like how he has a TON of hp and none of your attacks seem to damage him, but then the entire bar drains instantly once you smack him against the wall enough times
brad in sin & punishment
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Justin @jaffray.bsky.social · 22/03/2026
when i learn a movie uses puppets instead of cg
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Justin @jaffray.bsky.social · 19/03/2026
sometimes i think about this post when i need a good belly laugh
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Justin @jaffray.bsky.social · 17/03/2026
bound/pen plotted a borges
A bound "Funes the Memorious" by Borges
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Justin @jaffray.bsky.social · 12/03/2026
life update
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Justin @jaffray.bsky.social · 02/03/2026
this is what young men are going into debt over?
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Justin @jaffray.bsky.social · 01/03/2026
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Justin @jaffray.bsky.social · 27/02/2026
all my apas gone
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Justin @jaffray.bsky.social · 26/02/2026
yeah this baby runs crysis
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Justin @jaffray.bsky.social · 24/02/2026
when i see a technical blog post with an ai-generated header image
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Justin @jaffray.bsky.social · 23/02/2026
just another way AI is increasing demand for memory
Boris from the Claude Code team here.

Some of the engineers working on the app worked on Electron back in the day, so preferred building non-natively. It’s also a nice way to share code so we’re guaranteed that features across web and desktop have the same look and feel. Finally, Claude is great at it.

That said, engineering is all about tradeoffs and this may change in the future!
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Justin @jaffray.bsky.social · 23/02/2026
i just don't know man. what are we doing here
- **Always confirm with a human before removing any indexes, dropping partitions, archiving tables, or performing other destructive actions**
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Justin @jaffray.bsky.social · 07/02/2026
i have never played a sega saturn but every time i see a game from it im like this is the most beautiful game ive ever seen
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Justin @jaffray.bsky.social · 04/02/2026
hacker news reports that reading books is washed
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Justin @jaffray.bsky.social · 13/01/2026
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Justin @jaffray.bsky.social · 23/12/2025
i will beat metal slug on one credit one day soon
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