WASM I/O • 19-20 Mar • Barcelona 2026 Even More Hoops: Debugging WebAssembly across the Hardware Memory Partition Boundary • Wasm I/O 2026. A 2-day WebAssembly conference in Barcelona, Spain

This afternoon, I’ll be talking about debugging WebAssembly through the hardware boundary at the #wasmio conference in Barcelona. Come check it out, or come say Hi, at the Microsoft booth.

2026.wasm.io/sessions/eve...

And a double bonus! Debugging! (though not kotlin quite yet, alas) : 2026.wasm.io/sessions/eve...

squillace (@squillace@hachyderm.io) 1.9K Posts, 372 Following, 817 Followers · "Does not pose a present danger." Corp advice and bail bonds. Also: PM for OSS dev on Azure, vice chairperson @bytecodeallies. Mostly Linux, mostly helpful

if you're coming to @wasm.io in Barcelona, or are in or around Spain and could come but can't buy a ticket: I've got two tickets!! This is the best #webassembly conf there is.

The first two people from whom I receive a communication here or at hachyderm.io/@squillace will get one of those tickets.

More talks!!! This time about #debugging #webassembly through the hardware boundary using the @cncf.io project #hyperlight: @dblnz.dev: 2026.wasm.io/sessions/eve...

Hyperlight: Debugging hardware-protected guests - Microsoft Open Source Blog Find out how you can step through code in your guest micro-VM by attaching the GNU Debugger at runtime to debug Hyperlight guest micro-VMs.

I’m excited to announce a new blog post about something I find cool: interactive #debugging for #Hyperlight guests.
If stepping through your code running inside a hardware-protected micro-VM is your thing, give this a try.

opensource.microsoft.com/blog/2025/07...

Hyperlight: Debugging hardware-protected guests - Microsoft Open Source Blog Find out how you can step through code in your guest micro-VM by attaching the GNU Debugger at runtime to debug Hyperlight guest micro-VMs.

For those who are about difficult hardware #virtualization efficiency and dev experience (WTF????) you might find @dblnz.dev's blog post on #hyperlight and interactive debugging interesting. It's a blast for any micro-guest, including #webassembly. opensource.microsoft.com/blog/2025/07...

Now summer is really starting

Wow, that looks amazing! I bet it it tastes even better

Implement wasi preview3 nodejs shim by andreiltd · Pull Request #653 · bytecodealliance/jco This pull request introduces the new preview3-shim package, which provides WASI preview3 implementations for Node.js. These implementations align with the WIT file definitions from the WASI preview...

OMFG I can't wait. @tandrz.bsky.social has submitted a PR for the #webassembly #wasi v0.3.0 (Preview 3) nodejs compat on #jco! github.com/bytecodealli....

This movement is fantastic.

Glad to be here at #kubecon. Lots of cool projects and interesting people

Hyperlight Wasm: Fast, secure, and OS-free - Microsoft Open Source Blog We're announcing the release of Hyperlight Wasm: a Hyperlight virtual machine “micro-guest” that can run wasm component workloads written in many programming languages. Learn more.

Something I can't wait to talk about at #wasmio and @rejekts.io and at #kubecon: how to run #webassembly components at scale but with efficient hardware protection using #hyperlight.
aka.ms/hyperlight-w...

When life gives you oranges .. 😂

Build a Hyperlight C guest to securely execute Javascript - Microsoft Open Source Blog This article will show you how to create a “guest” application that uses the Hyperlight library and have fun with some JavaScript. Learn more.

If you want to run functions at scale embedded in an app but you REQUIRE for whatever reason hardware-based protection, have a look at the #hyperlight post by Ludvig Liljenberg about building a C micro-vm for #JavaScript using #QuickJs. aka.ms/hyperlight-j....

[Sandbox] Hyperlight · Issue #312 · cncf/sandbox Application contact emails David.justice@microsoft.com,Simon.Davies@microsoft.com,ralph.squillace@microsoft.com Project Summary Hyperlight is an open-source Rust library you can use to execute smal...

Very happy that the @cncf.io toc has voted to accept #hyperlight into the sandbox program! github.com/cncf/sandbox...

GitHub - hyperlight-dev/hyperlight: Hyperlight is a lightweight Virtual Machine Manager (VMM) designed to be embedded within applications. It enables safe execution of untrusted code within micro virt... Hyperlight is a lightweight Virtual Machine Manager (VMM) designed to be embedded within applications. It enables safe execution of untrusted code within micro virtual machines with very low latenc...

Hey Folks, join us for our first public community meeting for github.com/hyperlight-d... on Wednesday Feb. 5th at 9am PT (dateful.com/convert/pst-...). You can find the join details and agent for the meeting here hackmd.io/blCrncfOSEuq.... Feel free to add topics. See you soon!

#rust #hyperlight