Re-add hint

Signed-off-by: yubiuser <[email protected]>

Author: yubiuser

docs/main/prerequisites.md

@@ -34,6 +34,15 @@ The following operating systems are **officially** supported:
 
 Pi-hole only supports actively maintained versions of these systems.
 
+<!-- markdownlint-disable code-block-style -->
+!!! info
+    Pi-hole may be able to install and run on variants of the above, but we cannot test all of them.
+    It's possible that that the installation may still fail due to an unsupported configuration or specific OS version.
+
+    Also, if you are using an operating system not on this list Pi-hole may not work.
+
+<!-- markdownlint-enable code-block-style -->
+
 ### IP Addressing
 
 Pi-hole needs a static IP address to properly function (a DHCP reservation is just fine).