Drupal 8 Custom Module and Plugins

Step 1 Create Folders and initial files to create module

Step 2 Create a page

Step 3 Theme the page

Step 4 Pass variables and create a menu link in the main menu

Step 5 create simple hello world block using plugins

Step 6 add configuration form item to the block

Step 7 theme your block

Step 8 Build configuration form page for module

Step 9 use some services (global drupal functions)

Step 10 create your own service and access via dependency injection container

Step 11 working with drupal console and generate a block

Step 12 change the global service calls from step 10 to use the dependency injection container

Step 13 Making services that depend on other services

Step 14 Services inside of blocks