Module development and code questions

Hi, in a custom form I have several php files, both in the form and Controller folder.
From these files I need to call some functions that are the same for many. Until now I have rewritten them but to avoid errors, I would like to write them in a single file but I am not clear how to do it

Hello,

I'm having problems controlling access to nodes since I upgraded to Drupal 10. The options I had explored, by taxonomy or by content, have not yet been upgraded to Drupal 10. Any solutions?
Thank you so much.

Hello community, I am new to Drupal and I am investigating how it works, the question is that I deleted by mistake the content article that brings by default, I searched and found how to create a new one, but using it does not publish it on the main page.
Does anyone know why? thank you very much!

We are using Drupal CMS to store the multilingual content and its served through custom APIs. We have a CMS GUI for content authors where they can view, search, filter, translate, add, edit and delete the content. We have done lots of customization in the CMS and also migration it from Drupal 7 to 8 and to 9.

Drupal 10 is like a continuous and duuuuull pain...

To install drupal 10 you must conceive the Composer; after doing that, you solve, how to enable video.js to play videos.

Having been tried to add 'drupal/ace_editor:^2.0@alpha', it states, that some damned npm-asset/ace-builds ~1.0 must be done.

What a f..ck!

I do not know, how to use npm-asset.

Are you serious about making drupal 10 like the Quest?!?

Pals from Drupal, please, come back to Earth!