README update for imaginary

.env.sample

@@ -88,6 +88,9 @@ DEFAULT_QUOTA="10 GB"
 #COMPOSE_FILE="$COMPOSE_FILE:compose.fulltextsearch.yml"
 #SECRET_ELASTICSEARCH_PASSWORD_VERSION=v1
 
+# Image / PDF previews with Imaginary (see README)
+#COMPOSE_FILE="$COMPOSE_FILE:compose.imaginary-preview.yml"
+
 # HSTS Options
 # Uncomment this line to enable HSTS: https://docs.nextcloud.com/server/30/admin_manual/installation/harden_server.html
 #HSTS_ENABLED=1

README.md

@@ -249,6 +249,20 @@ docker exec -u www-data $(docker ps -f name=foo_com_app -q) ./occ preview:pre-ge
 
 This app will improve performance of image browsing at the cost of storage space.
 
+## Better image previews with `imaginary`
+
+1. Run `abra app config <domain>` and uncomment the line `#COMPOSE_FILE="$COMPOSE_FILE:compose.imaginary-preview.yml"`.
+2. Re-deploy the app (`abra app deploy <domain> --force`)
+3. Edit `/var/www/config/config.php` and add:
+
+  ```
+  'enabledPreviewProviders' => 
+  array (
+    0 => 'OC\\Preview\\Imaginary',
+  ),
+  'preview_imaginary_url' => 'http://imaginary:9000',
+  ```
+
 ## Fulltextsearch using elasticsearch
 
 1. Uncomment the following lines in your env file:

compose.imaginary-preview.yml

@@ -0,0 +1,10 @@
+---
+version: '3.8'
+services:
+  imaginary:
+    image: nextcloud/aio-imaginary:20250822_112758
+    environment:
+      - PORT=9000
+    command: -concurrency 50 -enable-url-source -log-level debug
+    networks:
+      - internal