Any front end dev want to help with some styling of the book? Please let me know. It also needs some mobile friendly theming help (if that is even possible for this kind of site).

Here is the reference example for Breadcrumb

The structure looks great with chapters on the left and cool search, and the book itself is an amazing resource, so thanks for that!

I am not a big fan of dark themes, though ... The dark style could be an option, but I think the default should be the standard on the internet: White background with black text.

Here is a reference example for Constraint

Adding Constraint to entity referenced Paragraph field

at https://selwynpolit.github.io/d9book/twig#which-template-which-variables it should be page.html.twig instead of page.tpl.php

The "Debian Bullseye from Discovery to Mastery" is a great open source handbook:

• https://debian-handbook.info/
• https://gitlab.com/debian-org/book

It uses the GNU General Public License as far as I can tell:

• https://gitlab.com/debian-org/book/-/blob/main/LICENSE
• https://www.gnu.org/licenses/gpl-3.0.html

Perhaps a license could also be added to this project?

In the case of forms, I added a section at the end "The basics of implementing forms." I kinda like that for chapters where I did the basics.

(In truth.. I would like to have seen these snippets at my fingertips)

• Migration/Migrate into Paragraphs
• Migrate source id preprocess (ie: there's no definitive id on the particular migration; Rather, the unique identifier is a key derived from content manipulation of a given column in the csv records)

Couldn't find anything about multilingual sites and its APIs.

About 3 weeks ago I configured the google analytics with this commit: d93ca0e

Not sure why I see no results from google:

Also

My phone occasionally pops up messages about lots of users accessing the site. Any analytics gurus out there have any ideas?

(In truth.. I would like to have seen these snippets at my fingertips)

• Migration/Migrate into Paragraphs
• Migrate source id preprocess (ie: there's no definitive id on the particular migration; Rather, the unique identifier is a key derived from content manipulation of a given column in the csv records)

Here is the reference example for Block Derivative Example

Suggestion to update the settings like in the screenshot

The result will look like this.

This will provide the following benefits:

• Quick access to the site with a link
• Keywords and description for better search and promotion on GitHub
• Hiding unnecessary information

https://github.com/selwynpolit/d9book/blob/gh-pages/book/composer.md#patches-from-a-gitlab-merge-request

this is incredibly dangerous you are basically merging ... anything ... into your code base.

Here is the reference example for LocalTask

Reference example How to Use Entity Reference Views in Drupal 8 - OsTraining

https://drupal.stackexchange.com/a/315310/71454

Add View filter, field examples.

I was looking for how to use a view for an entity autocomplete search and didn't see any examples.
Here is how it works:
$form['user'] = [
'#type' => 'entity_autocomplete',
'#target_type' => 'user',
'#selection_handler' => 'views',
'#selection_settings' => [
'view' => [
'view_name' => 'users_view',
'display_name' => 'users',
'arguments' => []
],
'match_operator' => 'CONTAINS'
],
];
I used this reference and confirmed it: https://drupal.stackexchange.com/questions/308870/entity-autocomplete-form-api-field-with-viewsselection-handler

I'm not sure of your contribution guidelines or styleguide but I was looking in this section:
https://selwynpolit.github.io/d9book/book/forms.html

Hi @selwynpolit Thank you for putting this together.

It would help many to learn Drupal.

Here is the reference example for action_plugin_examples

custom action plugin with ConfigurationForm

Here is a reference for Hook Form alter in OOPS way content_moderation.module
EntityTypeInfo

Another example organise-your-hooks-code-classes-object-oriented-way

@maks-oleksyuk Could you take a peek? I'm seeing build errors when I try to push changes.

Turns out it isn't quite as easy to contribute to this project as I had hoped. From editing directly on github.com to setting the target branch on the pull request to gh-pages, or downloading a copy of the site, editing, committing, pushing and creating a pull request, I suspect it is a little challenging for folks...

It would be great to add a page. Perhaps someone could do a screencast or instructions or both.

Each page had a page counter which let folks know how many times it had been read. Unfortunately this broke. Anyone have a good alternative?