Acquia Developer (D10) study plan

Build a custom module from scratch that registers a route, a controller, and a menu link

Implement a custom service in the module and inject it into the controller using the service container

Define a custom content entity with a base field and install it via a hook_update

Skim the Drupal 10 core services list and note which three you will reuse rather than reimplement

Write a custom plugin type and two plugins, then wire them to a manager service

Create a custom field formatter and attach it to an existing field through the UI

Implement hook_entity_presave and hook_form_alter with correct cache metadata

Add a config schema file so config validation passes

Build a custom subtheme from a core base theme with a libraries.yml and template overrides

Override a field, node, and block Twig template and document the theme hook suggestions used

Create a preprocess function that adds a cacheable variable to a template

Configure a content type with fields, display modes, and a view mode for teasers

Configure a taxonomy vocabulary and reference it from a content type with a filtered view

Build a view with a contextual filter, relationship, and exposed filter

Set up paragraph or entity reference revisions for a reusable content component

Configure an image style and responsive image style and apply them to a field

Instrument a page with the cache metadata debug output and eliminate three cacheability mistakes

Configure and verify a reverse proxy cache with a tag-based invalidation test

Enable BigPipe and lazy builders and measure the difference on a listing page

Run a basic security review: permissions, text formats, and update status

Write a PHPUnit kernel test for the custom service and a functional test for the route

Add a cache context to a block plugin and prove it varies correctly

Harden a custom form against CSRF and validate input with a constraint plugin

Review and document the caching layers (render, dynamic page, reverse proxy) in one diagram

Set up a local project with Composer-based Drupal 10 and a settings split for local and prod

Write a deployment pipeline that runs config import and database updates in the right order

Implement config split for environment-specific configuration

Document the code-to-config-to-deploy workflow for a single feature change

Run a full mock exam across all five domains and score each domain separately

Re-drill the two weakest domains with targeted hands-on exercises

Practice explaining cache tags, cache contexts, and cache max-age in plain language

Verify a clean install profile and config export round-trip one final time