Parts of it are. The kernel is derived from a Mach microkernel (an experimental kernel in the 80s, which was theoretically supposed to allow different OS personalities to coexist in the same system, sharing resources; macOS’ Darwin/XNU kernel doesn’t implement this capability in full, but you do get the Mach Ports interprocess communication mechanism, and a BSD UNIX personality permanently attached).

You’re thinking of a different denomination

If “he” uses Linux, there’s probably something xe/xey isn’t telling you.

The US used to require new citizens to renounce other nationalities, and I haven’t heard of them changing this. Rupert Murdoch had to renounce his Australian citizenship when he became a US citizen in the 80s. I think Linus was naturalised in the 90s or 00s, so not too long after.

Wouldn’t he have had to renounce his Finnish citizenship to be naturalised?

In any case, as he’s based in the US, the European culture of taking an entire month off a year, and of almost everyone in the same country taking time off at the same time and things shutting down for a month, wouldn’t be something he participates in. Even if he had 30 days of leave a year and took all of July off, in the US that would be a personal idiosyncracy (“that’s just Linus being Linus”) rather than a mass cultural phenomenon.

He’s a naturalised American citizen as of a decade or two ago, IIRC.

Are those adjectives randomly chosen?

If you want more like this, there’s Bunnix, the UNIX clone someone recently built in a month. You can follow its progress here.

The extra space is for two Electron apps of your choice.

Isn’t there a fork of that that’s identical only Satanic?

In the age of the Steam Deck and Proton, the Windows API has largely been demoted to a virtual machine that is already implemented on Linux. Given that some 5% of the market play on Linux, game publishers have an incentive to not write their Windows code in such a way that it breaks on Proton.

Don’t kinkshame the Linux users

I’m surprised that nobody has used “shoggoth” as the name of a tool for deploying/coordinating VMs/services or something.