Extended forget to one month

As shared multimedia contains heavier and less important data, it can be backuped less often

.autorestic.yml

@@ -2,7 +2,7 @@ version: 2
 
 global:
   forget:
-    keep-last: 2
+    keep-monthly: 1
 
 backends:
   hdd:
@@ -62,6 +62,13 @@ locations:
   nextcloud:
     from:
     - /home/yunohost.app/nextcloud
+    options:
+      backup:
+        exclude:
+        - '**/cache'
+        - '**/files_versions'
+        - '**/files_trashbin'
+        - '**/appdata_ocfigi57i0ri'
     to:
     - hdd
     - glacier
@@ -89,11 +96,25 @@ locations:
     - /var/mail
     to:
     - hdd
+    - glacier
     cron: '0 3 * * 4' # At 3:00am on Thursday
 
+  # All multimedia folders but the shared (separate location)
   multimedia:
     from:
     - /home/yunohost.multimedia/
+    options:
+      backup:
+        exclude:
+        - '/home/yunohost.multimedia/share'
+    to:
+    - hdd
+    - glacier
+    cron: '0 3 * * 4' # At 3:00am on Thursday
+
+  shared_multimedia:
+    from:
+    - /home/yunohost.multimedia/share
     to:
     - hdd
     cron: '0 3 1 * *' # At 3:00am on the 1st