diff --git a/user/autostart.nix b/user/autostart.nix
index fb939df..76a180e 100644
--- a/user/autostart.nix
+++ b/user/autostart.nix
@@ -14,7 +14,7 @@ lib.mkIf config.u.has.graphical {
         "xdg-desktop-portal.service"
         "copyq.service"
         "fcitx5.service"
-        "picom.service"
+        "fastcompmgr.service"
         "safeeyes.service"
         "snixembed.service"
       ];
@@ -26,7 +26,7 @@ lib.mkIf config.u.has.graphical {
   systemd.user.services = {
     copyq.Service.ExecStart = ["${pkgs.copyq}/bin/copyq"];
     fcitx5.Service.ExecStart = ["/run/current-system/sw/bin/fcitx5"];
-    picom.Service.ExecStart = ["${pkgs.picom}/bin/picom"];
+    fastcompmgr.Service.ExecStart = ["${pkgs.fastcompmgr}/bin/fastcompmgr"];
     safeeyes.Service.ExecStart = ["${pkgs.safeeyes}/bin/safeeyes"];
     snixembed.Service.ExecStart = ["${pkgs.snixembed}/bin/snixembed"];
   };
diff --git a/user/config/alacritty/alacritty.toml b/user/config/alacritty/alacritty.toml
index 972cec2..dcffe9f 100644
--- a/user/config/alacritty/alacritty.toml
+++ b/user/config/alacritty/alacritty.toml
@@ -89,7 +89,7 @@ mods = "Control|Shift"
 
 [window]
 dynamic_padding = true
-opacity = 0.8
+opacity = 0.9
 
 [window.padding]
 x = 10
diff --git a/user/packages.nix b/user/packages.nix
index e63bc9f..81095a4 100644
--- a/user/packages.nix
+++ b/user/packages.nix
@@ -41,6 +41,7 @@
       xclip
       copyq
       picom
+      fastcompmgr
       obs-studio
       screenkey
       safeeyes