If you're interested in technical notes on how the WoW64 thing works, I dug into Wine and implemented a similar thing in my (far inferior) emulator and wrote about it here, including some links to some Wine resources: https://neugierig.org/software/blog/2023/08/x86-x64-aarch64....

This is great.

Not to sound snarky, but now please get it to run Microsoft Office. I'd argue that this is the last barrier to many, many people being able to use Linux full-time for business purposes.

awesome, finally wine is getting proper ntsync support... and i reckon wow64 will let me run so many old games...

Here's a link to try it

https://www.codeweavers.com/crossover/download

Hm, speculating a bit, but it feels like NTSYNC is essentially a beginning of NT Subsystem for Linux, or maybe ntoskrnl as a kernel module. Feels like the most clean and fast way to port Windows, since the rest of the interfaces are in the user space in real Windows. Essentially should be almost without overhead: user: [gdi32.dll,user32.dll,kernel32.dll -> ntdll.dll] -> kernel: [ntoskrnl.ko]

“And because Proton, SteamOS, and every downstream project builds on top of Wine, those gains trickle down to everyone.”

the gains would trickle up, no?

I've heard in the past that ntsync is a big deal for audio plugins via yabridge as well. Not sure how much that's going to reduce the existing CPU penalty there.

Is the difference between the NT-style and POSIX-style semaphores essentially just that NT (and now this new API in Linux) supports setting a max value? Why don't POSIX semaphores support this?

I'd rather they focus on productivity apps than games. Linux has enough toxic users as it is. I'll praise wine when I can install 12yo office 2014

Anybody know if NTSYNC support is why the Chrome OS team moved away from native Steam support?