docs: update installation and blur option docs for GD and Imagick drivers

Author: ace-of-aces

docs/pages/available-options.md

@@ -32,7 +32,7 @@ blur=50
 ```
 
 > [!CAUTION]
-> The `blur` option is a resource-intensive operation and may cause memory issues if the image is too large. It is recommended to use this option with caution and test beforehand, or disable it in the config.
+> When using the default GD driver, `blur` is very resource-intensive and may cause memory issues if the image is too large. We recommend the [Imagick driver](/installation#driver-configuration) if you want to use this option, or else to leave it disabled in the config.
 
 ## `contrast`
 

docs/pages/installation.md

@@ -4,22 +4,12 @@
 
 -   PHP \>= 8.4
 -   Laravel 12.x
--   [GD PHP Library](https://www.php.net/manual/en/book.image.php)
+-   [GD](https://www.php.net/manual/en/book.image.php) or [Imagick](https://www.php.net/manual/en/book.imagick.php) PHP extension installed and [enabled](#driver-configuration)
 
 ::: tip
 If you want to use the file caching feature (highly recommended), a configured `Storage` disk and a `Cache` driver is required. More info in the [Image Caching](/image-caching) section.
 :::
 
-### Important `php.ini` settings❗
-1. The underlying image processing library (GD) can use alot more RAM than regular web requests. It's highly recommended to set your memory limit to *at least* 256MB.
-```
-memory_limit=512M
-```
-2. If you have the [Swoole extension](https://laravel.com/docs/octane#swoole) installed, make sure you have the following setting to [avoid conflicts](https://github.com/ace-of-aces/laravel-image-transform-url/issues/4) with Laravel's `defer` helper which this package uses.
-```
-swoole.use_shortname=off
-```
-
 ## Installation
 
 Install the package via composer:
@@ -33,3 +23,24 @@ Publish the config file with:
 ```bash
 php artisan vendor:publish --tag="image-transform-url-config"
 ```
+
+## Driver Configuration
+
+To use Imagick instead of the default GD library for image processing (recommended for performance), you will have to [change the default image driver](https://image.intervention.io/v3/getting-started/frameworks#application-wide-configuration) for the underlying [Intervention Image](https://image.intervention.io/) package.
+
+::: info
+The [`libvips` driver](https://github.com/Intervention/image-driver-vips) is currently not supported.
+:::
+
+## PHP Settings
+
+Depending on your environment, you may need to adjust some `php.ini` settings.
+
+1. If you are using the default GD driver, be aware that it can use alot more RAM than regular web requests. It's highly recommended to set your memory limit to *at least* 256MB.
+```
+memory_limit=512M
+```
+2. If you have the [Swoole extension](https://laravel.com/docs/octane#swoole) installed, make sure you have the following setting to [avoid conflicts](https://github.com/ace-of-aces/laravel-image-transform-url/issues/4) with Laravel's `defer` helper which this package uses.
+```
+swoole.use_shortname=off
+```