raison

The games are the raison d'être of the system, the only reason for people to buy one.

There is a good argument to be made that the raison d'etre of the Confederacy was the subjugation of African Americans.

Type systems provide other benefits too of course, but error checking is its Raison d’Être.

From that, you have your raison d'etre and, when combined with your view on utility and expectations, a money management strategy.

That's the raison d'etre of the raspberry pi, which appears to be really popular...

Muslim friends say that indeed the Quran is pretty transparently calling for non-muslim's death, and it seems to be seized upon readily as the raison d'être for many of these terrible groups.

The ·raison d'être· of microservices is to decouple the lifecycle of each service totally.

Bitcoin does that using proof-of-work (quite elegantly, Bitcoin's PoW does actually a lot more than that, but this is really it's raison d'etre).

They may oversell themselves, and that's a valid criticism, but the OP fails to really analyze the raison d'etre of Wealthfront as a service.

Possibly race bating since this was raison d'être of the AME shooting?

It's not very strict; it's the raison d'être of the GPL.

Which I thought was the raison d'etre of the Raspberry Pi Foundation's existence (i.e.

Great, we're on a blacklist whose raison d'etre is "blacklist those not following the rules", and the bastards don't even follow their own declared workflow.

Except that there's no reason for systemd's model to "get traction" outside of desktop-focussed Linux distributions, since a "better user experience" is it's current raison d'etre.

The Raison-de-etre for the whole CA system is trust, more specifically delegating trust.