I am mostly using it for hobby projects by now, but for me it is the very transparent yet mighty type system in addition to the aforementioned aspects. Its macro system is a sweet spot in comparison Ruby’s metaprogramming, which can easily be taken way too far.
Also, if you do it right, you can build containers from scratch that are small in size and boot really fast.
It has a really well curated and extensive standard library that lets you get away with including a lot less dependencies. It comes with a linter, a test runner, docs generator and quite useful debugging features.
I am looking forward to what AI can do to port Ruby gems to the ecosystem.
Coming from rather bulky DSLRs (e.g. Canon 7D), the Ricoh GR III was a game changer for me.
The camera has a superb image quality while easily fitting in the front pocket of my pants, which allows me to carry it each and every day.
That availability allowed me to take many shots I would have missed with my bulkier cameras as I would have left them at home.
The development presets it brought luckily meet my taste, which allows me to skip development on my computer most of the time (I still shoot RAW and jpeg combined for the other times).
The designers have put much effort in enabling one-handed handling of the camera even in manual mode.
Many current generation smartphones come with capable cameras, though, and I expect many not to see the benefit in this camera for their needs.
I am looking forward to what AI can do to port Ruby gems to the ecosystem.