Why is it so difficult to find a good document on the installation of php composer on this website?

I was able to find the basic curl command (on another website) to download the .phar file, but... c'mon... how helpful would it be to have a document that is actually tailored for inmotion shared hosting. I've heard it can be done... must we all just figure it out for ourselves?

Composer (version 1.9.0) successfully installed to: /home/XXXXXX/wrkdir/composer.phar

Use it: php composer.phar

Some settings on your machine may cause stability issues with Composer.

If you encounter issues, try to change the following:

PHP was compiled with --with-curlwrappers which will cause issues with HTTP authentication and GitHub. Recompile it without this flag if possible.

sorry, I'm kinda of a newbie to LINUX, but I do know that composer makes a PHP programmer's life easy... I just want to be able to use it, so can someone please provide working implementation details such that it will work in a shared environment?

thank you so much!