Add sidecar (prebuilt) package + install

hosts/sam-4screen-desktop/configuration.nix

@@ -6,6 +6,7 @@
 # Stop nouveau from binding the NVIDIA GPU
   boot.blacklistedKernelModules = [ "nouveau" ];
   boot.kernelParams = [
+  "nvidia.NVreg_PreserveVideoMemoryAllocations=1"
   "intel_iommu=off"
   "dev_mem_signed_off=1"
   "modprobe.blacklist=nouveau"
@@ -13,6 +14,11 @@
 ];
 
 
+boot.extraModprobeConfig = ''
+  options nvidia_modeset vblank_sem_control=0
+'';
+
+
   imports = [
     ./hardware-configuration.nix
   ];
@@ -204,12 +210,83 @@ PermitRootLogin = "no";
   # ---
   # Mounts
   # ---
-  fileSystems."/data" = {
-    device = "/dev/disk/by-uuid/27febd74-20aa-4a3a-92c1-6fdd1ad7e88e";
-    fsType = "ext4";
-    options = [ "nofail" "x-systemd.device-timeout=1s" ];
-  };
+  # fileSystems."/data" = {
+  #   device = "/dev/disk/by-uuid/27febd74-20aa-4a3a-92c1-6fdd1ad7e88e";
+  #   fsType = "ext4";
+  #   options = [ "nofail" "x-systemd.device-timeout=1s" ];
+  # };
+fileSystems."/mnt/integral300" = {
+  device = "/dev/disk/by-uuid/27febd74-20aa-4a3a-92c1-6fdd1ad7e88e";
+  fsType = "ext4";
+  options = [
+    "nofail"
+    "noauto"
+    "x-systemd.automount"
+    "x-systemd.idle-timeout=60"
+    "x-systemd.device-timeout=30s"
+  ];
+};
 
+fileSystems."/mnt/backup" = {
+  device = "/dev/disk/by-uuid/0806B92006B90FA4";
+  fsType = "ntfs3";
+  options = [
+    "ro"
+    "nofail"
+    "noauto"
+    "x-systemd.automount"
+    "x-systemd.idle-timeout=60"
+    "x-systemd.device-timeout=30s"
+    "uid=1000"
+    "gid=100"
+    "umask=022"
+  ];
+};
+
+fileSystems."/mnt/tempbackup" = {
+  device = "/dev/disk/by-uuid/4f9c4bd5-fea5-408f-9370-731fc095da3f";
+  fsType = "ext4";
+  options = [
+    "nofail"
+    "noauto"
+    "x-systemd.automount"
+    "x-systemd.idle-timeout=60"
+    "x-systemd.device-timeout=30s"
+  ];
+};
+
+fileSystems."/mnt/xpsystemdrive" = {
+  device = "/dev/disk/by-uuid/82c994f1-9adb-49e4-ba1e-5b6e5ccbd49b";
+  fsType = "ext4";
+  options = [
+    "nofail"
+    "noauto"
+    "x-systemd.automount"
+    "x-systemd.idle-timeout=60"
+    "x-systemd.device-timeout=30s"
+  ];
+};
+
+fileSystems."/mnt/smartdrive" = {
+  device = "/dev/disk/by-uuid/819c3228-c1af-4d8e-b507-2ad11b20cbef";
+  fsType = "ext4";
+  options = [
+    "nofail"
+    "noauto"
+    "x-systemd.automount"
+    "x-systemd.idle-timeout=60"
+    "x-systemd.device-timeout=30s"
+  ];
+};
+
+
+systemd.tmpfiles.rules = lib.mkAfter [
+  "d /mnt/integral300 0755 root root -"
+  "d /mnt/backup 0755 root root -"
+  "d /mnt/tempbackup 0755 root root -"
+  "d /mnt/xpsystemdrive 0755 root root -"
+  "d /mnt/smartdrive 0755 root root -"
+];
   # ---
   # Niri + login (greetd)
   # ---
@@ -236,15 +313,33 @@ PermitRootLogin = "no";
     ];
   };
 
-  # Minimal system packages needed for the session and core usability
-  environment.systemPackages = with pkgs; [
-  swappy
+
+fonts.packages = with pkgs; [
+  nerd-fonts.symbols-only
   font-awesome
   nerd-fonts.jetbrains-mono
-  spotify
-  vlc
-  telegram-desktop
-  flameshot
+];
+
+  # Minimal system packages needed for the session and core usability
+  environment.systemPackages = with pkgs; [
+  (pkgs.callPackage ../../pkgs/sidecar-bin.nix { })
+   tmux
+   brave
+   vorta
+   borgbackup
+   libreoffice-fresh
+   filezilla
+   nushell
+   zed-editor
+    brave
+    swappy
+    nerd-fonts.symbols-only
+    font-awesome
+    nerd-fonts.jetbrains-mono
+    spotify
+    vlc
+    telegram-desktop
+    flameshot
     waybar
     firefox
     google-chrome
@@ -262,11 +357,19 @@ services.tailscale.enable = true;
   # NVIDIA (simple, first-boot stable config; PRIME tuning later)
   # ---
   services.xserver.videoDrivers = [ "nvidia" ];
-  hardware.nvidia.modesetting.enable = true;
-  hardware.nvidia.nvidiaSettings = true;
-  hardware.nvidia.nvidiaPersistenced = true;
-hardware.nvidia.open = false;
-  # ---
+ 
+hardware.nvidia = {
+  modesetting.enable = true;
+  nvidiaSettings = true;
+  nvidiaPersistenced = true;
+  open = false;
+
+  # Helps resume by preserving VRAM allocations:
+  powerManagement.enable = true;
+};
+
+
+ # ---
   # NixOS release compatibility
   # ---
   system.stateVersion = "24.05";