I could eventually figure out what it was doing but the speed of the videos flipping between examples looks like it was set by people who already knew what the message was, rather than for people who don't know it (yet)
I also appreciate that you didn't throw around many unfamiliar technologies, with an assumption that all readers will be as looped into the same technology ecosystem. "Blade templates" is unfamiliar to me, but I can see from the code at the right, you're just illustrating another source file format that doesn't highlight well with traditional highlighters; it's not important for me to know what Blade is.
About the only section I'd say could use some work is the installation section, where a bunch of PHP ecosystem tech is mentioned, all of which is foreign to me. Maybe a, "Not a PHP developer? Here's a quick walk-through of what you need to know..." (linking to another page.)
Maybe add a "Need more? Contact us" tier.
Also, I'd love to use this with technologies other than PHP. I use Rocket (Rust) in one of my projects and tried to check out the standalone cli as my only option.
The link to it didn't work on firefox mobile.
Thankfully clicking on any of the PHP things worked and brought me to the same docs where I could then navigate to the CLI.
Maybe highlight it more that you don't even need special integration with the Webserver, since it's possible to preprocess pages with your cli utility.
That part was not immediately obvious and might have turned me away, had I not been determined to see what the CLI tool did.
Also get rid of the weird "sponsorship for unlocking documentation" model. Make the library sponsorware if you need to, as in you can't see the code until you sponsor, but why would you make the docs sponsored? They're what might entice people to actually pay to use your software. As someone else said, you're actually crippling your own sponsorships by hiding marketing material behind a paywall. Marketing should be free so that as many people see it as possible, and some subset will buy. If you cut off the top of that funnel, you just get fewer people buying.