From 56336e0b7e2478762f210fbb8725d46c39c88fc5 Mon Sep 17 00:00:00 2001
From: Jake Ginesin <jakeginesin@gmail.com>
Date: Thu, 21 Aug 2025 18:37:10 -0400
Subject: [PATCH] generation 498 25.11.20250714.62e0f05

---
 flake.nix                          |  9 +++++-
 home/programs/polybar/default.nix  |  4 +--
 hosts/server-gpu/configuration.nix | 37 ++++++++++++++++++++++++
 hosts/server-gpu/gpu.nix           | 45 ++++++++++++++++++++++++++++++
 hosts/server-gpu/ssh.nix           | 19 +++++++++++++
 5 files changed, 111 insertions(+), 3 deletions(-)
 create mode 100644 hosts/server-gpu/configuration.nix
 create mode 100644 hosts/server-gpu/gpu.nix
 create mode 100644 hosts/server-gpu/ssh.nix

diff --git a/flake.nix b/flake.nix
index 6c48584..36184cf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -56,7 +56,14 @@
     nixosConfigurations.server = nixpkgs.lib.nixosSystem {
       modules = [
         baseModule
-        ./hosts/thonkpad/configuration.nix
+        ./hosts/server/configuration.nix
+      ];
+    };
+
+    nixosConfigurations.server-gpu = nixpkgs.lib.nixosSystem {
+      modules = [
+        baseModule
+        ./hosts/server-gpu/configuration.nix
       ];
     };
 
diff --git a/home/programs/polybar/default.nix b/home/programs/polybar/default.nix
index 397508e..e83e940 100644
--- a/home/programs/polybar/default.nix
+++ b/home/programs/polybar/default.nix
@@ -136,8 +136,8 @@ in {
     # my savior: https://www.reddit.com/r/NixOS/comments/v8ikwq/polybar_doesnt_start_at_launch/
     script = ''
       # echo "none"
-      # polybar mybar 2> /dev/null & disown
-      setsid polybar mybar > /dev/null 2> /dev/null &> /dev/null
+      polybar mybar 2> /dev/null & disown
+      # setsid polybar mybar > /dev/null 2> /dev/null &> /dev/null
     '';
   };
 
diff --git a/hosts/server-gpu/configuration.nix b/hosts/server-gpu/configuration.nix
new file mode 100644
index 0000000..5748d89
--- /dev/null
+++ b/hosts/server-gpu/configuration.nix
@@ -0,0 +1,37 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: {
+  imports = [
+    ./hardware-configuration.nix
+    ../../system/system.nix
+    ../meta.nix
+    ./ssh.nix
+    ./gpu.nix
+  ];
+
+  config = {
+    networking.hostName = "server-gpu"; # Define your hostname.
+    res = "2560x1440";
+
+    home-manager = {
+      useGlobalPkgs = true;
+      useUserPackages = true;
+      backupFileExtension = "backup";
+      users.synchronous.imports = [../../home/home.nix];
+    };
+
+    # Bootloader.
+    # boot.loader.grub.enable = true;
+    # boot.loader.grub.device = "/dev/nvme0n1";
+    # boot.loader.grub.useOSProber = true;
+    # boot.loader.grub.version = 2;
+    # services.logind.lidSwitchExternalPower = "ignore";
+
+    boot.loader.systemd-boot.enable = true;
+    boot.loader.efi.canTouchEfiVariables = true;
+    boot.loader.grub.enable = false;
+  };
+}
diff --git a/hosts/server-gpu/gpu.nix b/hosts/server-gpu/gpu.nix
new file mode 100644
index 0000000..68a7596
--- /dev/null
+++ b/hosts/server-gpu/gpu.nix
@@ -0,0 +1,45 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  # just taken from: https://nixos.wiki/wiki/Nvidia
+
+  # Enable OpenGL
+  hardware.graphics = {
+    enable = true;
+  };
+
+  # Load nvidia driver for Xorg and Wayland
+  services.xserver.videoDrivers = ["nvidia"];
+
+  hardware.nvidia = {
+    # Modesetting is required.
+    modesetting.enable = true;
+
+    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+    # Enable this if you have graphical corruption issues or application crashes after waking
+    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
+    # of just the bare essentials.
+    powerManagement.enable = false;
+
+    # Fine-grained power management. Turns off GPU when not in use.
+    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+    powerManagement.finegrained = false;
+
+    # Use the NVidia open source kernel module (not to be confused with the
+    # independent third-party "nouveau" open source driver).
+    # Support is limited to the Turing and later architectures. Full list of
+    # supported GPUs is at:
+    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
+    # Only available from driver 515.43.04+
+    open = false;
+
+    # Enable the Nvidia settings menu,
+    # accessible via `nvidia-settings`.
+    nvidiaSettings = true;
+
+    # Optionally, you may need to select the appropriate driver version for your specific GPU.
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+  };
+}
diff --git a/hosts/server-gpu/ssh.nix b/hosts/server-gpu/ssh.nix
new file mode 100644
index 0000000..e88f023
--- /dev/null
+++ b/hosts/server-gpu/ssh.nix
@@ -0,0 +1,19 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  services.openssh.enable = true;
+
+  # Disable password login for security
+  services.openssh.settings.PasswordAuthentication = false;
+  services.openssh.settings.PermitRootLogin = "no";
+
+  # Add your authorized key for a specific user
+  users.users.yourusername = {
+    isNormalUser = true;
+    openssh.authorizedKeys.keys = [
+      config.age.secrets.ssh-pub
+    ];
+  };
+}