How to use Minify in Codeigniter 4 - Namespace Issues

Hi,

I am trying to use matthiasmullie/minify in Codeigniter 4. But so far I am getting errors due to wrong namespacing. Following is what I did so far:

I copied whole unzipped folder in Library: Libraries/Mathia

I added following in Config/Autoload.php

PHP Code:

'MatthiasMullie'      => APPPATH . 'Libraries/Mathia/src', 


In a controller I used following code:

PHP Code:

use MatthiasMullie\Minify; 


Then I used following code to use it but I got errors, file not found

PHP Code:

$minifier = new Minify\CSS(); 


Kindly advise how to use it correctly.

Regards

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Note: I do not want to use composer, kindly advise how to manually integrate Minify in Codeigniter 4.