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justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ Profile
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ

@justinhj

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Canada guy. Father, husband and assistant to the dog. Principal Software Engineer. Current things: Zig, System arch, Neovim, Gen AI, Japanese. Former game dev.

BC. Canada.
Joined April 2009
Don't wanna be here? Send us removal request.
@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
21 hours
To paraphrase the author "It's not just playing Pokemon it's doing science" https://t.co/gSPB0Hl1Iu Cool
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blog.jcz.dev
From 2.5 Pro's lighthouse loop to 3 Pro's "Zombie Phoenix" strategy against Red: a full breakdown of why Gemini 3 Pro is a superior long-horizon agent.
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
2 days
We will look back on our use of AI generated art as blog banners and in slide decks with a mixture of nostalgia and cringe, like we do with myspace. Soon they will just look like professionally generated layouts so enjoy it.
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
4 days
Note that you need to run the puzzle solution to create the output needed for the visualization. https://t.co/NQNUQTI5JQ zig build run-day8-part3 -- day8zig/input.txt 2> input.csv And delete the top 2 lines
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github.com
adventofcode2025. Contribute to justinhj/adventofcode2025 development by creating an account on GitHub.
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
4 days
Gemini did a great job of making this visualizer for the circuits being built in Advent of Code Day 8 https://t.co/2DUpuf63Oa
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@duha_the_best
Andrey Fomin
5 days
I didn't have $1 million for a Game Awards Trailer so I'm posting my ASCII 3D RPG game here instead for free!
@JakeSucky
Jake Lucky
10 days
A 3 minute trailer at the Game Awards now costs up to $1 million Via Kotaku
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@jeffboudier
Jeff Boudier ๐Ÿค—
5 days
Excited to welcome @Apple to @huggingface Enterprise! ๐Ÿ˜ Just yesterday Apple released Sharp - an amazing new model to turn images into 3D splats. Wonder how your iPhone magically turns your picture into moving images when you tilt it? With Sharp you can create this type of
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@marcel_wiessler
๐ŸŒต Marcel Wiessler
5 days
Excited to share the first public version of the Needle Inspector for three.js! We're looking forward to your feedback, ideas and of course bugreports. Let us know what you think, what you're missing and what you use it for! Happy holidays from everyone at Needle #threejs
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@PulpLibrarian
Pulp Librarian
8 days
All AI should be made to say "Bidi bidi bidi" before giving any answer, to remind people it's a machine generated response.
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
9 days
Doing advent of code with Claude Code
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
9 days
Buying something online from Shoppers Drug Mart makes me appreciate Amazon so much more. Waited 3 months for them to get an item in stock and 6 days since I ordered it and it hasn't even shipped.
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
12 days
Cloudflare engineering missed the opportunity to call their technial blog Cloudflare Unwrapped
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
12 days
2025 and still no infinite coffee pot
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
12 days
YouTube's content is incomparable but there seems to be a concerted effort to make the mobile UX as terrible as possible. This selection of inscrutable options for example. But the overall layout is much worse.
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@mitchellh
Mitchell Hashimoto
16 days
I love using agents for analyzing codebases for me. My prior pattern of `grep` and manual skimming has been fully replaced with agents. I ask it to list sources and line numbers and then I go in and verify for myself (never blind trust). Examples: - https://t.co/6RpH9eo7wU -
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ampcode.com
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@debasishg
Debasish (เฆฆเง‡เฆฌเฆพเฆถเฆฟเฆธเง) Ghosh ๐Ÿ‡ฎ๐Ÿ‡ณ
15 days
placing Zig in a nice sweet spot between Rust and C++ โ€ข explicit allocator pattern makes arenas feel so natural โ€ข compile time meta-programming โ€ข C interop โ€ข build system advantages โ€ข compile times very nice blogpost from @lightpanda_io ..
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lightpanda.io
We chose Zig over C++ and Rust because we wanted a simple, modern systems language. Here's what we learned building a browser with it.
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@mattgodbolt
matt godbolt is mostly on bsky these days
20 days
Ever wonder why compilers use `xor eax, eax` to zero registers? It's smaller AND fasterโ€”CPUs optimise it out entirely! Day 1 of Advent of Compiler Optimisations: https://t.co/VOo6hv2rEX Video: https://t.co/Kcqj07D5Ve #AoCO2025
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@unisonweb
Unison | @unison-lang.org on bsky
26 days
๐ŸŽ‰ Unison 1.0 has landed! After years of engineering, design, and community collaboration, weโ€™re excited to announce this milestone! Spread the word! https://t.co/ePOjhjMx0Y
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unison-lang.org
After years of engineering, design, and community collaboration, we're excited to release Unison 1.0. This version delivers a refined programming workflow and a mature toolchain. Join us as we...
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
27 days
What is going on with the X app's ui today? Big white gaps when scrolling and non functional repost panel.
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@esrtweet
Eric S. Raymond
29 days
@Devon_Eriksen_ I cannot agree with your dismissal of LLMs as nothingburgers. Yes they have serious limitations. No, they are not AGI. But they are in some significant cases, effective amplifiers of human intelligence. I'm going to talk about what I know. I've been a software engineer for a
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@justinhj
justinhj ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‘พ
1 month
Predictions people made during the dot com era: "New economy". No more booms and busts. โŒ "Friction-Free Capitalism". Perfect price discovery eliminates brand loyalty and margins โŒ Death of all physical retail โŒ End of cities and offices โŒ Death of the book โŒ Culture and
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