From 334fe8cab3e47995da20fad8e84579bdd2dd9c90 Mon Sep 17 00:00:00 2001
From: Ivan Malison <IvanMalison@gmail.com>
Date: Tue, 3 Aug 2021 10:09:34 -0600
Subject: [PATCH] [NixOS] Use jonaburg picom

---
 nixos/flake.nix        |  1 +
 nixos/home-manager.nix |  4 +---
 nixos/overlay.nix      | 10 ++++++++++
 3 files changed, 12 insertions(+), 3 deletions(-)
 create mode 100644 nixos/overlay.nix

diff --git a/nixos/flake.nix b/nixos/flake.nix
index 2144a5a8..4a1b2970 100644
--- a/nixos/flake.nix
+++ b/nixos/flake.nix
@@ -42,6 +42,7 @@
     nixpkgs.overlays = [
       nix.overlay xmonad.overlay xmonad-contrib.overlay
       notifications-tray-icon.overlay (import ../dotfiles/config/taffybar/overlay.nix)
+      (import ./overlay.nix)
     ] ++ taffybar.overlays;
     imports = [
       home-manager.nixosModule
diff --git a/nixos/home-manager.nix b/nixos/home-manager.nix
index 03c3751b..8e5220fe 100644
--- a/nixos/home-manager.nix
+++ b/nixos/home-manager.nix
@@ -112,9 +112,7 @@
     Install = { WantedBy = [ "graphical-session.target" ]; };
 
     Service = {
-      # Temporarily fixes corrupt colours with Mesa 18.
-      Environment = [ "allow_rgb10_configs=false" ];
-      ExecStart = "${pkgs.picom}/bin/picom";
+      ExecStart = "${pkgs.picom}/bin/picom --experimental-backends";
       Restart = "always";
       RestartSec = 3;
     };
diff --git a/nixos/overlay.nix b/nixos/overlay.nix
new file mode 100644
index 00000000..1c2b3758
--- /dev/null
+++ b/nixos/overlay.nix
@@ -0,0 +1,10 @@
+final: prev: {
+  picom = prev.picom.overrideAttrs(_: {
+    src = prev.fetchFromGitHub {
+      repo = "picom";
+      owner = "jonaburg";
+      rev = "a8445684fe18946604848efb73ace9457b29bf80";
+      sha256 = "sha256-R+YUGBrLst6CpUgG9VCwaZ+LiBSDWTp0TLt1Ou4xmpQ=";
+    };
+  });
+}