simple-tab-groups VS darwin-libplatform

The older release is still available on that page, but presumably with different features. Development looks very active here: https://github.com/Drive4ik/simple-tab-groups/tree/master/plugins/stg-plugin-group-notes

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Are there reasons that the "Simple Tab Groups" extension isn't suitable for you? It seems to be well-maintained, cleverly uses Firefox's "hide tabs" API to keep a single window behind-the-scenes, and has integration with lots of other features like Firefox's containers. I think it's an indirect descendent of the old Tab Groups extension when it was spun out of Firefox.

https://github.com/drive4ik/simple-tab-groups

Just use Simple Tab Groups honestly

I assume that the speed is partly a consequence of not integrating with the context menu items of other extensions and of Firefox. See for example the discussions at and around https://github.com/Drive4ik/simple-tab-groups/issues/749#issuecomment-783171538

tab grouping extensions that do not misuse Firefox containers were developed, however in the absence of a tab groups API, conflicts are inevitable

Apple Open Source Resources

Apple does plenty of open source stuff. Safari's browser engine, Swift, libdispatch, the XNU kernel used by iOS and macOS, etc. And macOS is generally packed with open source things, like the default shell, zsh. Also, Metal actually predates Vulkan, so Vulkan was definitely not established when they started focusing on Metal. Yeah, they probably should consider supporting Vulkan now, but it's nothing to do with open source. The main beneficiaries of Apple supporting Vulkan would be people porting closed-source games.

It's still not a great thing to do. Apple used to contribute a lot more, even if some of their stuff was exclusive to their platform. https://opensource.apple.com

There's quite a bit of macOS that's open source. The author links to source code in Firefox, and that source code has links to Apple's source code:

> // For information about the following undocumented flags and functions see

> // https://github.com/apple/darwin-xnu/blob/main/bsd/sys/ulock.... and

> // https://github.com/apple/darwin-libplatform/blob/main/privat...

Yes, but it's not so uncommon for "spinlocks" to evolve into not-actually-spinlocks. In the Linux kernel, spinlock_t is actually a mutex if PREEMPT_RT is enabled [1]. And Darwin has some code to do this in userspace [2], although I'm not sure if it's actually used.

[1] https://www.kernel.org/doc/html/latest/locking/locktypes.htm...

[2] https://github.com/apple/darwin-libplatform/blob/main/src/os...