pmahoney

If that phrase "for individuals" means "for individuals only", then it isn't GPLv3, but some bespoke non-free license.

My speculation: it was intended to mean: use it under terms of GPLv3 (for commercial purposes or not), OR contact to negotiate different terms.

But there's a built-in assumption that no commercial entity would _want_ to use it under GPLv3 terms.

Can you explain further? I'm not sure I follow.

> How do you as a method author opt in to distinguishing between [break and next] after yielding to a block?

I don't use Ruby much lately, but if I yield to a block which calls break, control will pass to the code following the block (and not back to my method). If the block calls next or simply finishes, control passes back to me though I cannot know if next was called or not (but do I care? I can go ahead and yield the next element of a collection either way)

Used "in anger" means "professionally" or "for real" or "where working or not really matters" vs. using it for hobby projects or experimentation.

Many years ago (2011 or so?), I worked on a Rails app that used JRuby. The driving force was a small part of the app needing a Java library. I think we did see some performance benefit, or at least benefit from using multi-threaded web servers instead of process-per-request servers (like Unicorn).

However, we also ran into many problems that felt like we were the first to encounter them (few or no similar reports on project bug lists or StackOverflow etc.) which is never fun if you're under any kind of pressure to deliver.

In hindsight, if I had something small and reasonably isolated (a microservice?), it could make sense to use JRuby or Truffle (if you need some JVM lib; if it's purely for performance reasons I'd just grab a different language for that microservice). But for a larger app that pays the bills, I'd stick with the well-trod path (at the time that was MRI, Unicorn, single-threaded).

> Coupled with an increase in food delivery efficiency, kitchenless flats could become the norm in densely populated areas.

Sounds dystopian. Hustle and bustle of life aside, physically cooking things can be enjoyable. On the other hand, when I cook "from scratch", I'm buying conveniently packaged ingredients (I don't grow or grind my own flour for example), so maybe I'm happy with my current level of effort from simple familiarity.