So as you may or may not know, not everybody uses Windows.

macOS is a commonly used operating system, as well as various flavors of Linux.

I'm hoping that in the future we could get builds for those operating systems as well, because as a Linux user I'm restricted to only playing the original SM64HD.

Well I have a Mac as well, so I can test both the builds

Is this still being developed and if not can someone else takeover?

So the bug fixes and QoL things i requested months ago need modelers and animators?

@Bennett is right, tweaks still can (and should) be made. Also, in the meantime you could give us more to do without modelers - for example, by programming 1ups to be able to follow Mario, players will be able to do the [url​=https://youtu.be/pn--MUIKSRg?t=48s]Green Demon Challenge[/url​], thus giving players more to do while major updates are paused.