From 9260c068ab421aeb94916b53ee4d26243f54172b Mon Sep 17 00:00:00 2001
From: Natsu Kagami <nki@nkagami.me>
Date: Fri, 21 Oct 2022 14:16:06 +0200
Subject: [PATCH] Some prep for suspend and swap

---
 kagami-air-m1/configuration.nix          | 15 +++++++++++++++
 kagami-air-m1/hardware-configuration.nix |  4 +++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/kagami-air-m1/configuration.nix b/kagami-air-m1/configuration.nix
index f6e15e7..8920ae3 100644
--- a/kagami-air-m1/configuration.nix
+++ b/kagami-air-m1/configuration.nix
@@ -202,6 +202,21 @@
 
   services.dbus.packages = with pkgs; [ gcr ];
 
+  # Power Management
+  powerManagement = {
+    enable = true;
+    powerDownCommands = ''
+      /run/current-system/sw/bin/rmmod brcmfmac # Disable wifi
+      /run/current-system/sw/bin/rmmod hci_bcm4377 # Disable bluetooth
+    '';
+    resumeCommands = ''
+      /run/current-system/sw/bin/modprobe brcmfmac # Enable wifi
+      /run/current-system/sw/bin/modprobe hci_bcm4377 # Enable bluetooth
+      /run/current-system/sw/bin/systemctl restart iwd
+      /run/current-system/sw/bin/systemctl restart bluetooth
+    '';
+  };
+
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
   # networking.firewall.allowedUDPPorts = [ ... ];
diff --git a/kagami-air-m1/hardware-configuration.nix b/kagami-air-m1/hardware-configuration.nix
index 615b861..3739792 100644
--- a/kagami-air-m1/hardware-configuration.nix
+++ b/kagami-air-m1/hardware-configuration.nix
@@ -26,7 +26,9 @@
       fsType = "vfat";
     };
 
-  swapDevices = [ ];
+  swapDevices = [
+    { device = "/swap"; size = 16 * 1024; }
+  ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's