That's how Instapaper did it back when I used it (may have a full-fledged add-on now, but I don't know for sure).
The only drawback, for me, was the added bulk of the Bookmarks bar. I like to slim it down, so having the single button has been great. (Also, being able to add the tags, but maybe the bookmarklet is capable of that?)
In case you didn't know, you can remove it from the toolbar via "Customize", or completely disable it by toggling `extensions.pocket.enabled` in `about:config`.
That being said, I started using it extensively after being a big fan of Instapaper. The browser integration (especially the easy tagging) has been really helpful in keeping my tab count down.
For what it's worth, it's fairly agnostic when it comes to languages or frameworks. Yes, you'll learn Rails, and some Ruby on the way, but the intent is to learn web development from the ground up. You'll learn concepts that will apply to anything else you might be using. It's invaluable, and a great place to start with web development.
You're absolutely right about the content and tutorials available for Unity, that's a humongous boon. But that's a gap that will rapidly close, especially after UE4 dropped the subscriptions.
I was very wary of Blueprints, but after playing a bit and seeing just how they work, I was sold. Same with using C++ natively; it seems daunting, but you're calling the same methods your Blueprints do, it's almost drop-in easy.
Definitely it's gonna need to make some progress, but the gap is closing.
I can see it happening, I've even given it some thought. I have a feeling as more and more resources start appearing that are UE4 specific, we'll start seeing some really cool revivals like that. Right now, a huge portion of the community is still in Unity, we're only just now starting to see documentation and videos really coming out strong (probably fueled by UE4 dropping the subscription fee).
It's not hard. Apple computers are still using commodity hardware - that is, you can buy very similar parts off the shelf to build your own system. The closer you get, the easier it is, but there are forums revolving around tweaks and updates to make just about anything work. Even AMD CPUs, which Apple has never used.
It _does_ take some tinkering, though, and if you aren't comfortable with that (or if your time is valuable enough), you should invest in the real deal. :)
The only drawback, for me, was the added bulk of the Bookmarks bar. I like to slim it down, so having the single button has been great. (Also, being able to add the tags, but maybe the bookmarklet is capable of that?)