> It means that the scope of WASI has shifted from falling language B from language A to solving something that nobody has asked for.

Uhh really? You just got done pointing out

> But, WASI 0.1 was severely limited about the type of data that it could exchange: basically integers and pointers to buffers.

We obviously couldn't stop there.

The author has all sorts of shit to throw about the interface definitions being way more complex than they want.

It turns out calling other languages isn't just about calling their stuff. You also need to be able to import and then latter link the things you want to use. Being able to say what it is you want brought in, what you want to link to, that's stuff the runtime needs to be able to do.

Look at c and c++. They've been around for decades and there's still nearly no mainstream package/library management. Because it looks like what Kerkour asked for, because everything is too simple in that world.

You need this stuff. You need to be able to create high level semantics to interoperate across. You need a rich enough ABI to let languages negotiate for & get the things they're going to call.

The qualms against async are even less well defined & even more unsupported, which is compensated for being ever more foaming at the mouth & wild gesticulating. Rather than acknowledge that yeah, some people like & use async in languages, there's utterly untargeted shade of the broadest degree:

> Most importantly, after all these years, nobody knows when to use [rust's async] or not! Should this library be async or not?

Io-less libraries that can put off being async are in fact excellent. But there still, in most systems, are things happening over time, and async happening in Python and Node and others radically upped the game of what was possible. And in the past decade have even evolved into something pretty nice & great & usable.

But Rust having some difficulty figuring out how to manage their ecosystem is, to Kerkour, apparently enough to damn the whole enterprise, "The new billion dollar mistake." Having been around for cgi-bin and mod-perl, I don't think I'm so massively massively confidently assured.

Things aren't always exactly as perfect as we might want. And that just really drives some people wildly mad, is inexcusable. 'We should never have tried, ruin to those trying to improve things, & drop it all & go back!,' seems to be the message. Actually the message here is even worse, more, 'these people are vultures trying to syphon money with the express intent to create waste & milk the anarchy,' which is some contagious shit to be spewing.

This seems so overblown. WIT's are not that complex. Theres reasons stuff is like this (permitting wasm engines form a registry to give people what they're asking to use, without needing internals that would have to DIY this all themselves). And maybe such a broad objective as a universal computing runtime might be possible with less. But honestly the risk of underbidding & failing to connect different systems well seems far worse than the risk of, I dunno, what the author seems to be apoplectic about, perhaps maybe enjoying using a package manager to help satisfy dependencies.

One thing the author is right about, that makes me extremely sad:

> I hardly see browser vendors implementing this

I can excuse this today, because it is unknown. But wow it's scary as hell seeing how uninvolved & interest the browsers look. The browsers seem full speed ahead building their own take on platform, doing their own file system APIs and what not. There's great efforts by many to bridge the two worlds, to create WASI runtimes for the browser, but some day I really hope the promised universal machine of WASI is something the web can enjoy and use. But I'm also not in a hurry; I think there's a lot of figuring how best to make this wasi 0.2 world nice & letting languages figure out their own tooling to come play. Patience & improving & iterating is good; trying is good. We improve & progress through time and effort.