They are, slowly. Swift is open source, clang is open source. They are moving parts of the xcode IDE into open source, like with sourcekitd and now recently clangd.

I don't think they will ever move 'secret sauce' into open source, but infrastructural things like DBs and dev tooling seems to be going in that direction.

Well, clangd is a Google project, which Apple has decided to start contributing to, so probably doesn’t belong on your list.

Apple, like everyone else, wants to commoditize their complements.

Clang was an Apple project from the start.. I'm not sure what is telling you it is a Google project

Clangd != clang.

Woolvalley said “and now recently clangd“, which is a source code completion server which began its life at Google.

Clang did start its life with Apple.

In case a citation is needed: https://en.wikipedia.org/wiki/Clang

> Apple chose to develop a new compiler front end from scratch, supporting C, Objective-C and C++. This "clang" project was open-sourced in July 2007.

I believe the "d" in the GP comment was not a typo https://news.ycombinator.com/item?id=16874734

From what I recall (and based on some quick retro-googling) I don't believe Foudnation was open-source. One of the complaints about it on HN back in the day was that it was closed...

You are correct, FoundationDB was free but never OSS.

You can even check the comments on the HN thread [1] when they removed the downloads.

[1] https://news.ycombinator.com/item?id=9259986