From d352303d26a912f44b0d1b10a6f0797f268aba1e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cyryl=20P=C5=82otnicki?= <cyplo@cyplo.net>
Date: Sat, 12 Jun 2021 11:09:46 +0100
Subject: [PATCH] compress skinny

---
 .../boxes/skinnyv/hardware-configuration.nix  | 32 +++++++++++--------
 1 file changed, 18 insertions(+), 14 deletions(-)

diff --git a/nixos/boxes/skinnyv/hardware-configuration.nix b/nixos/boxes/skinnyv/hardware-configuration.nix
index d0136636..6c79107b 100644
--- a/nixos/boxes/skinnyv/hardware-configuration.nix
+++ b/nixos/boxes/skinnyv/hardware-configuration.nix
@@ -1,31 +1,35 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:
 
 {
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usb_storage" "sd_mod" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/9dba116f-c9fe-403a-a8e2-f9fdab23f1f1";
-      fsType = "btrfs";
-    };
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/9dba116f-c9fe-403a-a8e2-f9fdab23f1f1";
+    fsType = "btrfs";
+    options = [ "compress=zstd" ];
+  };
 
   boot.initrd.luks.devices."crypt".device = "/dev/disk/by-uuid/0c192a18-178f-4598-a1ed-5295ef2abdc4";
 
-  fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/0A6A-AAFC";
-      fsType = "vfat";
-    };
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/0A6A-AAFC";
+    fsType = "vfat";
+  };
 
   swapDevices = [ ];
 
+  zramSwap = {
+    enable = true;
+    algorithm = "zstd";
+    memoryPercent = 25;
+  };
+
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 }