From cb720d62b0915af217851a5a9396b930586f898a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Tue, 19 Aug 2025 11:01:53 +0200
Subject: nixos: tweak Mox's configurations

Ensure that dm-mod is available and autoscrub BTRFS and limit journald
size.
---
 nixos/configurations/dean.nix     | 14 ++++++++++++++
 nixos/configurations/spt-mox.nix  |  2 ++
 nixos/configurations/spt-mox2.nix | 16 ++++++++++------
 nixos/configurations/zd-mox.nix   |  2 ++
 nixos/modules/generic.nix         |  2 +-
 5 files changed, 29 insertions(+), 7 deletions(-)

(limited to 'nixos')

diff --git a/nixos/configurations/dean.nix b/nixos/configurations/dean.nix
index dfb03e1..a95d9f1 100644
--- a/nixos/configurations/dean.nix
+++ b/nixos/configurations/dean.nix
@@ -11,6 +11,20 @@
     };
   };
 
+  boot.initrd.availableKernelModules = ["dm-mod"];
+
+  hardware.enableAllFirmware = false; # No wifi so we do not need firmwares
+  services = {
+    journald.extraConfig = ''
+      SystemMaxUse=512M
+    '';
+
+    btrfs.autoScrub = {
+      enable = true;
+      fileSystems = ["/"];
+    };
+  };
+
   networking = {
     useNetworkd = true;
     useDHCP = false;
diff --git a/nixos/configurations/spt-mox.nix b/nixos/configurations/spt-mox.nix
index a9f4965..4dfa2c8 100644
--- a/nixos/configurations/spt-mox.nix
+++ b/nixos/configurations/spt-mox.nix
@@ -28,6 +28,8 @@
     };
   };
 
+  boot.initrd.availableKernelModules = ["dm-mod"];
+
   services = {
     journald.extraConfig = ''
       SystemMaxUse=512M
diff --git a/nixos/configurations/spt-mox2.nix b/nixos/configurations/spt-mox2.nix
index fd2c074..2e76449 100644
--- a/nixos/configurations/spt-mox2.nix
+++ b/nixos/configurations/spt-mox2.nix
@@ -23,13 +23,17 @@
     };
   };
 
-  services.journald.extraConfig = ''
-    SystemMaxUse=512M
-  '';
+  boot.initrd.availableKernelModules = ["dm-mod"];
 
-  services.btrfs.autoScrub = {
-    enable = true;
-    fileSystems = ["/"];
+  services = {
+    journald.extraConfig = ''
+      SystemMaxUse=512M
+    '';
+
+    btrfs.autoScrub = {
+      enable = true;
+      fileSystems = ["/"];
+    };
   };
 
   networking = {
diff --git a/nixos/configurations/zd-mox.nix b/nixos/configurations/zd-mox.nix
index 07da891..a6f327c 100644
--- a/nixos/configurations/zd-mox.nix
+++ b/nixos/configurations/zd-mox.nix
@@ -29,6 +29,8 @@ in {
     monitoring.speedtest = true;
   };
 
+  boot.initrd.availableKernelModules = ["dm-mod"];
+
   services = {
     journald.extraConfig = ''
       SystemMaxUse=512M
diff --git a/nixos/modules/generic.nix b/nixos/modules/generic.nix
index e029058..e6e96a4 100644
--- a/nixos/modules/generic.nix
+++ b/nixos/modules/generic.nix
@@ -37,7 +37,7 @@ in {
       kernelPackages = mkOverride 1100 pkgs.linuxPackages_latest;
       kernelParams = ["boot.shell_on_fail"];
     };
-    hardware.enableAllFirmware = true;
+    hardware.enableAllFirmware = mkDefault true;
     services.fwupd.enable = mkDefault (pkgs.system == "x86_64-linux");
     systemd.oomd.enable = false;
 
-- 
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