xnu VS scratch-www

> That said--in support of "not in a vacuum", and against myth-making.

Apple knows what they owe to open source software: https://opensource.apple.com/releases/

A lot of the core XNU and Darwin code is open source: https://opensource.apple.com/releases/

> When I'm seeing a weird network issue, I want to be able to peer into the kernel's tcp stack.

Uhh...

https://github.com/apple-oss-distributions/xnu/tree/xnu-8796...

I think NeXT might've written an HFS Standard reader or something, but they used the Apple code for HFS+ so it ended up as a hybrid.

https://github.com/apple-oss-distributions/xnu/blob/rel/xnu-...

Mach message passing and objc message passing have no relation. I don’t think xnu contains much if any objc.

Obviously not all of its, but they contribute quite a bit. https://opensource.apple.com/releases/

here is the kernel source (they have branches for each individual macos release with its darwin kernel ver, macos 13 is ver 8792.xx.x for instance): https://github.com/apple-oss-distributions/xnu

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.

LiveCode is about the closest literal logical successor to HyperCard.

https://en.wikipedia.org/wiki/LiveCode?wprov=sfti1

That said, I think Scratch is a better learning environment these days and you can develop workable apps in the style of HyperCard. There are plenty of tutorials, documentation, and examples to work from.

https://scratch.mit.edu

and https://codecombat.com, which has been around for a while now.

I think this paradigm (navigating a character using "move" function invocations) is good but kind of exhausts its usefulness after a while. I question whether my daughter learns coding this way or just is playing a turn based top down platformer. The most code like thing is when you use 'loops' to have characters repeat sequences of moves. I think when kids grok these things these apps become just types of glofiried education flavoured video games. There are a lot of things in kodable for instance that I feel are just basic web games with coding terms slapped on it.

https://scratch.mit.edu/ is more like 'programming' imo, even at the level of the objective -- having a blank canvas to create something. It seems a little advanced for my kids right now though.

+1 Scratch! My son started with it, then expanded into Roblox/Lua.

Children can download other people's games and experiment there. Scratch also has pre-made art, sounds, music.

https://scratch.mit.edu/

Scratch.mit.edu is a highly-recommended place to start [1] https://scratch.mit.edu/

> Scratch is the world’s largest coding community for children and a coding language with a simple visual interface that allows young people to create digital stories, games, and animations. Scratch is designed, developed, and moderated by the Scratch Foundation, a nonprofit organization. [2]

1: https://scratch.mit.edu/

https://scratch.mit.edu/ (Scratch version 2)

Someone who uses scratch.mit.edu (like me)

Now that I think of it, I did start game development on scratch before going right into java (because of minecraft).