I want to get feedback on my php html, css, less, js, html packer library?

Question

PHP

Good day. I try to spread my solutions in open source (I assume that it's a good thing).
I designed one of my solutions as a library and uploaded it to github , I also wrote a small article on Habr in the sandbox in the hope of getting some kind of feedback on my code. But she did not go further than the sandbox .. As I later realized, no one watches the sandbox except for UFOs, so many good articles disappear there.
Briefly about the library: a php script that packs js, less->css, css, html based on the package.json file into one js file. Advantages: easy to use, only PHP is used, no need to write additional js code (like define(..), #import, require(..), ...). More details can be found in the descriptions on the links above.
I see that there seems to be an active community here, so I hope to get feedback on the following points:
1. Should such solutions be posted in open source at all?
2. Will someone use them or is it only suitable for their own projects or self-satisfaction?
3. What level / quality should the library be, so that at least someone would be interested in it?
4. Do you have open source solutions and how many people use them? Why did you put your solution in open source?
5. How do you like the code, architecture and documentation of the library?

Answer 1

And why did you decide that using php for these purposes would be a good idea?
In my opinion, things like less->css build, assembly, minification and obfuscation should be there regardless of which platform is used on the back end. That is why grunt gained such popularity.
But thanks for your efforts.

Answer 2

The sandbox is not only watched by UFOs. If there is no feedback, then something was done wrong. New software should solve problems that are not solved (or solved unsuccessfully) in other software. This should be the first question you should ask yourself. But there is no answer, no answer. And the motivation to use it just because it is in PHP and does not require the same Java / Ruby is clearly not enough.