From 10582a5727dc31e9bd519c2bf6029bfc9300aaec Mon Sep 17 00:00:00 2001
From: Doloro1978 <doloroo@proton.me>
Date: Wed, 3 Dec 2025 10:42:03 +0000
Subject: [PATCH] qol(Hibernate/Sleep): Now works :tada:

---
 nix/hosts/doloro/nixos.nix     |  3 +-
 nix/modules/hyprland/home.nix  | 95 +++++++++++++++++++++++++++-------
 nix/modules/hyprland/nixos.nix | 13 +++++
 3 files changed, 90 insertions(+), 21 deletions(-)

diff --git a/nix/hosts/doloro/nixos.nix b/nix/hosts/doloro/nixos.nix
index a8b8493..611ff21 100644
--- a/nix/hosts/doloro/nixos.nix
+++ b/nix/hosts/doloro/nixos.nix
@@ -126,11 +126,12 @@ in
     # Enable this if you have graphical corruption issues or application crashes after waking
     # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
     # of just the bare essentials.
-    powerManagement.enable = false;
+    powerManagement.enable = true;
 
     # Fine-grained power management. Turns off GPU when not in use.
     # Experimental and only works on modern Nvidia GPUs (Turing or newer).
     powerManagement.finegrained = false;
+    # prime.offload.enable = true;
 
     # Use the NVidia open source kernel module (not to be confused with the
     # independent third-party "nouveau" open source driver).
diff --git a/nix/modules/hyprland/home.nix b/nix/modules/hyprland/home.nix
index 5c5b5ba..1f04e1f 100644
--- a/nix/modules/hyprland/home.nix
+++ b/nix/modules/hyprland/home.nix
@@ -7,6 +7,18 @@
 }:
 let
   cfg = config.modules.Hyprland;
+  suspend = pkgs.writeShellScript "hyprland_suspend" ''
+    	#!/bin/bash
+
+    case "$1" in
+        suspend)
+            killall -STOP Hyprland
+            ;;
+        resume)
+            killall -CONT Hyprland
+            ;;
+    esac
+    	'';
 in
 {
   imports = [
@@ -17,33 +29,76 @@ in
   options.modules.Hyprland = {
     enable = lib.mkEnableOption "Hyprland";
   };
-  config.wayland.windowManager.hyprland = lib.mkIf cfg.enable {
-    enable = true;
-    # set the flake package
-    # settings = {  };
-    systemd.variables = [ "--all" ];
-    package = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
-    portalPackage =
-      inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.xdg-desktop-portal-hyprland;
-  };
   # TODO, split this into its own module;
-  config.programs = lib.mkIf cfg.enable {
-    wlogout = {
+  config = lib.mkIf cfg.enable {
+    wayland.windowManager.hyprland = {
       enable = true;
+      # set the flake package
+      # settings = {  };
+      systemd.variables = [ "--all" ];
+      package = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
+      portalPackage =
+        inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.xdg-desktop-portal-hyprland;
     };
-    foot = {
-      enable = true;
-      settings = {
-        main = {
-          term = "xterm-256color";
+    programs = {
+      wlogout = {
+        enable = true;
+      };
+      foot = {
+        enable = true;
+        settings = {
+          main = {
+            term = "xterm-256color";
 
-          font = "CaskaydiaCove Nerd Font Mono:size=12";
-        };
+            font = "CaskaydiaCove Nerd Font Mono:size=12";
+          };
 
-        mouse = {
-          hide-when-typing = "yes";
+          mouse = {
+            hide-when-typing = "yes";
+          };
         };
       };
     };
+    systemd.user.services."hyprland_suspend" = {
+      Unit = {
+        Description = "Suspend hyprland";
+        Before = [
+          "systemd-suspend.service"
+          "systemd-hibernate.service"
+          "nvidia-suspend.service"
+          "nvidia-hibernate.service"
+        ];
+      };
+      Install = {
+        WantedBy = [
+          "systemd-suspend.service"
+          "systemd-hibernate.service"
+        ];
+      };
+      Service = {
+        Type = "oneshot";
+        ExecStart = "${suspend} suspend";
+      };
+    };
+    systemd.user.services."hyprland_resume" = {
+      Unit = {
+        Description = "Resume hyprland";
+        After = [
+          "systemd-suspend.service"
+          "systemd-hibernate.service"
+          "nvidia-resume.service"
+        ];
+      };
+      Install = {
+        WantedBy = [
+          "systemd-suspend.service"
+          "systemd-hibernate.service"
+        ];
+      };
+      Service = {
+        Type = "oneshot";
+        ExecStart = "${suspend} resume";
+      };
+    };
   };
 }
diff --git a/nix/modules/hyprland/nixos.nix b/nix/modules/hyprland/nixos.nix
index 7626197..014e441 100644
--- a/nix/modules/hyprland/nixos.nix
+++ b/nix/modules/hyprland/nixos.nix
@@ -14,6 +14,19 @@ in
   };
   config = lib.mkIf cfg.enable {
     programs.xwayland.enable = true;
+    boot.kernelParams = [
+      "resume=UUID=d9b81619-5772-4ac4-bcd5-552e1e784f9e"
+      "resume_offset=141042944"
+    ];
+    boot.resumeDevice = "/dev/disk/by-uuid/d9b81619-5772-4ac4-bcd5-552e1e784f9e";
+    powerManagement.enable = true;
+    swapDevices = [
+      # [[ Hibernate ]]
+      {
+        device = "/var/lib/swapfile";
+        size = 48 * 1024; # 48GB in MB
+      }
+    ];
     programs.hyprland = {
       enable = true;
       # set the flake package