mention mirroring

pages/Configuring/Advanced-config.md

@@ -79,6 +79,20 @@ Where `TOP` `BOTTOM` `LEFT` `RIGHT` are integers in pixels of the reserved area
 to add. This does stack on top of the calculated one, (e.g. bars) but you may
 only use one of these rules per monitor in the config.
 
+## Mirrored displays
+
+If you want to mirror a display, add a `,mirror,[NAME]` at the end of the monitor
+rule, examples:
+```
+monitor=DP-3,1920x1080@60,0x0,1,mirror,DP-2
+monitor=,preferred,auto,1,mirror,DP-1
+```
+
+Please remember that mirroring displays will not "re-render" everything for your
+second monitor, so if mirroring a 1080p screen onto a 4K one, the resolution will
+still be 1080p on the 4K display. This also means squishing and stretching
+will occur on non-matching resolutions.
+
 ## Rotating and the default workspace
 
 {{< hint type=important >}}

pages/FAQ/_index.md

@@ -77,19 +77,6 @@ You did the below, unknowingly.
 
 Use `gamescope`, tends to fix any and all issues with wayland/Hyprland.
 
-### How do I mirror a screen?
-
-Mirroring isn't *officially* supported. It's technically a bug, but it works.
-Make sure the screen you want mirrored is the same resolution as the source.
-
-Then, just make them overlap in the layout, e.g. making the primary monitor at
-`0x0` and the mirrored one on `0x0` as well.
-
-That creates an issue though, as the mirrored output also *has* to have an
-active workspace, and usually will be annoyingly taking 2,3 etc, while making
-them unreachable. An easy fix is to assign e.g.
-`workspace=MIRROREDSCREEN,name:unused` and never use it.
-
 ### How heavy is this?
 
 Not that much heavier than Xorg. If you want maximum performance, consider