Whole lotta love.

web/modules/custom/video_compressor/video_compressor.info.yml

@@ -0,0 +1,5 @@
+name: Video Compressor
+description: 'Compresses videos to smaller size prior to upload.'
+core_version_requirement: ^10 || ^11
+package: Media
+type: module

web/modules/custom/video_compressor/video_compressor.module

@@ -0,0 +1,10 @@
+<?php
+
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Implements hook_entity_presave().
+ */
+function video_compressor_entity_presave(EntityInterface $entity) {
+  /* dump($entity); */
+}