(XServer)~xrandr records for monitors, picom now uses vsync

alacritty/.config/alacritty/alacritty.yml

@@ -13,6 +13,7 @@
   #TERM: xterm-256color
 
 window:
+  opacity: 0.7
   # Window dimensions (changes require restart)
   #
   # Specified in number of columns/lines, not pixels.
@@ -286,6 +287,11 @@ colors:
 #  duration: 0
 #  color: '0xffffff'
 
+# Background opacity
+#
+# Window opacity as a floating point number from `0.0` to `1.0`.
+# The value `0.0` is completely transparent and `1.0` is opaque.
+
 #selection:
   #semantic_escape_chars: ",│`|:\"' ()[]{}<>\t"