keen-slider VS slick

As for what I am interested in, I want a spinning wheel similar to what is available on keen-slider.io date picker.... But I want the wheel to be an entire calendar... not many wheels, but merged into one.

https://keen-slider.io/, maybe?

As mentioned in other comments, embla carousel is pretty good. Keen-Slider is also a good alternative. It's been used by the Vercel team in some of their sites, so that's a good endorsement. I've used it in some projects and I've been happy with it, not a heavy dependency and it's pretty easy to costumize with tailwind.

They're using https://keen-slider.io/. Though pretty much any slider/carousel can do this.

I know that keen-slider has an example for iOS-inspired date/time picker. I haven't used it myself though.

Keen-slider is another option and it works with both React native and react!

This is what I use : https://github.com/rcbyr/keen-slider

In the past, I have copied code from Slick Sliders on to the container to generate the animation, but would love to learn how to hand code this myself. I work with WordPress in my company, so alot of PHP is involved as well.

I've tried a few things, like installing vue slick carousel but I'm getting a type error that I can't seem to fix. I looked around and could only find basic carousels, without that perspective and layer-stacking kind of stuff with the center one being on top of the others. Slick slider's center mode (https://kenwheeler.github.io/slick/) is cool, not exactly what I want but the closest at least, but it requires jQuery, which I can't use on that project.

Depending how confident you are with JQuery, and what page builder you’re using, you may be able to set up a Slick Slider or similar around the Cover Block and use multiple Cover Blocks as the slides

Try this => https://kenwheeler.github.io/slick/

Years and years ago I used to use Malsup's jQuery Cycle plugin and then Cycle2 but these now seem long abandoned. I've also used both flexslider and slickslider but I'm wondering if there are better, more modern alternatives I could now be using instead to quickly create sliders or carousels.

If you use the Acquia Product 'Site Studio', the carousel component is just a Slick Slider instance. We've used this in several Drupal projects.

But thanks God, it is now absolutely effortless to create a carousel from many libraries such as Swiper, Slick, Owl Carousel,...

Slick will help you realize the carousel effect. It has a full array of options, works with swipe gestures for mobile devices, and supports other cool features. You can even sync the two carousels if you want to create an overlay effect.