From 7ce4f8e15f5f85d55d47ac3d62844b9240fdbec0 Mon Sep 17 00:00:00 2001
From: Aleksandr Lebedev <alex.lebedev2003@icloud.com>
Date: Wed, 19 Mar 2025 22:50:39 +0100
Subject: [PATCH] ZSwap/ZRam

---
 nixos/hosts/andrej-pc/default.nix               | 4 ++++
 nixos/hosts/kylekrein-homepc/default.nix        | 4 ++++
 nixos/hosts/kylekrein-mac/default.nix           | 9 +++++++++
 nixos/hosts/kylekrein-mac/mac-hardware-conf.nix | 7 ++++++-
 4 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/nixos/hosts/andrej-pc/default.nix b/nixos/hosts/andrej-pc/default.nix
index 45d7001..1d1b616 100644
--- a/nixos/hosts/andrej-pc/default.nix
+++ b/nixos/hosts/andrej-pc/default.nix
@@ -16,6 +16,10 @@
     ../../users/andrej
   ];
 
+  zramSwap = {
+    enable = true; # Hopefully? helps with freezing when using swap
+  };
+
   services.zerotierone = {
     enable = true;
     joinNetworks = [
diff --git a/nixos/hosts/kylekrein-homepc/default.nix b/nixos/hosts/kylekrein-homepc/default.nix
index 7f71bc7..236de9d 100644
--- a/nixos/hosts/kylekrein-homepc/default.nix
+++ b/nixos/hosts/kylekrein-homepc/default.nix
@@ -28,6 +28,10 @@
     ladybird
     #inputs.nix-gaming.packages.${pkgs.system}.star-citizen
   ];
+
+  zramSwap = {
+    enable = true; # Hopefully? helps with freezing when using swap
+  };
   services.zerotierone = {
     enable = true;
     joinNetworks = [
diff --git a/nixos/hosts/kylekrein-mac/default.nix b/nixos/hosts/kylekrein-mac/default.nix
index a855739..aa0278b 100644
--- a/nixos/hosts/kylekrein-mac/default.nix
+++ b/nixos/hosts/kylekrein-mac/default.nix
@@ -29,6 +29,15 @@
     unstable-pkgs.mcpelauncher-ui-qt
   ];
 
+    boot = {
+    kernelParams = [
+      "zswap.enabled=1"
+      "zswap.compressor=lzo"
+      "zswap.zpool=zsmalloc"
+      "zswap.max_pool_percent=50"
+    ];
+  };
+
   services.zerotierone = {
     enable = true;
     joinNetworks = [
diff --git a/nixos/hosts/kylekrein-mac/mac-hardware-conf.nix b/nixos/hosts/kylekrein-mac/mac-hardware-conf.nix
index feba233..4342e83 100644
--- a/nixos/hosts/kylekrein-mac/mac-hardware-conf.nix
+++ b/nixos/hosts/kylekrein-mac/mac-hardware-conf.nix
@@ -40,7 +40,12 @@
       #options = [ "fmask=0022" "dmask=0022" ];
     };
 
-  swapDevices = [ ];
+  swapDevices = [ 
+    {
+      device = "/persist/swapfile";
+      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