New Bytecode Alliance blog post: Making WebAssembly and Wasmtime More Portable:
https://bytecodealliance.org/articles/wasmtime-portability
[#]Wasmtime #Wasm
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Cursed job interview:
"Write a function that returns a string in C."
When the interviewee answers, respond with "that approach should work, however it has some problems; is there another way we could do that?", and just keep responding with that, every time the interviewee comes up with a different approach.
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wasi-sdk 25.0 is now released!
Highlights include:
https://github.com/WebAssembly/wasi-sdk/releases/tag/wasi-sdk-25
[#]WASI
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oh my watermelon sum types are so amazing
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can you set a breakpoint in yaml asking for a friend
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This blog post by @b0rk about pipes getting "stuck"
https://hachyderm.io/@b0rk@jvns.ca/113567235181862751
is a great description of the kind of problem that the "no more elements are coming for a while" item in the Wasm Component async design todo list is about:
https://github.com/WebAssembly/component-model/blob/main/design/mvp/Async.md#todo
I envision it's an operation on an output stream, which I've been calling a "lull", which would be used by things analogous to tail -f to say "that's all I have for the moment" to the rest of the pipeline.
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The merchant displayed a large sword and proclaimed to the crowd that this sword could pierce any armor. Then the merchant displayed a large shield and proclaimed that this shield could withstand any blow.
Then a child approached, and asked,
"How do you do revocation?"
[#]CapabilityBasedSecurityHumor
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I just landed a PR improving the component model's documentation for the canonical built-ins, which are the low-level intrinsic functions core Wasm can import, the added "instruction set" in a sense:
https://github.com/WebAssembly/component-model/blob/main/design/mvp/Explainer.md#resource-built-ins
Now, each built-in has an "approximate WIT signature" giving an intuitive and language-independent picture, and a canonical ABI signature which is how compilers today concretely interact with it.
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The next in-person Wasm CG meeting is February 12-13 at the Fastly office in San Francisco!
https://github.com/WebAssembly/meetings/blob/main/main/2025/CG-02.md
[#]Wasm
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On a personal level.
I got curious about computers because they are things I'm able to be curious about. That's it. That's the spark. I can explore them and learn how they work.
Computers are hard sometimes. Sometimes we can figure out ways to make them easier. But if we instead automate doing hard things, using AI to make doing hard things less effort, it doesn't lead to a place I'm excited about.
3/N
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It's not just about how the story of how AI will make us all so much more "productive" that we'll all have much more free time, which has been told many times in modern history and has never been broadly true.
It is all that.
And.
2/N
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I am a programmer in the year 2024 who doesn't use AI.
I'm not even curious about it.
It's not just the mistakes. Hallucinations. Artificial confidence.
It's not just the unconscionable energy use. Laundering and reinforcement of historical biases. Ripoff of creative works. Exploited workers. Scams. Bots. Political propaganda. Mass surveillance to train the beast. And this is just off the top of my head here.
1/N
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Introducing: Lime, a new series of CPUs.
Virtual CPUs, that is. Or rather, Virtual CPU feature sets 😃.
So far, LLVM only has one Wasm CPU defined which is stable, "mvp". The "generic" and "bleeding-edge" CPUs evolve (carefully) over time, which works well for many users, but not all. "lime1" is a new CPU tools like LLVM can target which is an update to "mvp", and which is intended to be stable.
https://github.com/WebAssembly/tool-conventions/blob/main/Lime.md#the-lime-series
A patch adding lime1 to LLVM is here: https://github.com/llvm/llvm-project/pull/112035
[#]Wasm
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Fastly's Wasm team is hiring:
https://www.fastly.com/about/jobs/apply?gh_jid=6382838
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What do WASI programs and superheros have in common?
A. They have Cape Ability based security.
[#]CapabilityBasedSecurityHumor
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big.LITTLE citrus fruits
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[wasi-messaging] was just voted to advance to [phase 2]!
It's useful in practice on its own, but I'm also interested in how this is a milestone for the broader [wasi-cloud-core]'s service world, which has the potential to become an important new world, along side the POSIX-oriented command world and the HTTP-oriented proxy world.
[#]WASI #Wasm
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Understanding humans: Hyperbole.
In any sentence that appears to make an unwarranted generalization, there is an implied "more so than you probably think" at the end.
For example, the phrase "practice makes perfect" is widely repeated, despite many counterexamples. The literal meaning is "practice makes perfect, more so than you probably think". It's not about this one weird trick that's guaranteed to fix everything. It is about how humans often underestimate their prospects for improvement.
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Why aren't pirates afraid of dependency injection?
Because it's just passing aaaaarguments to constructors.
[#]CapabilityBasedSecurityHumor
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Q. Why was the forgetful engineer good at capability-based security?
A. They had a mind like a sieve.
(because their work was fine grained, get it? right? i'll be here all week)
[#]CapabilityBasedSecurityHumor
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text/gemini