From ccb78369834d6622f5b4fc3c79ed1f203b589e74 Mon Sep 17 00:00:00 2001
From: NullBite <me@nullbite.com>
Date: Wed, 27 Dec 2023 02:37:46 -0500
Subject: [PATCH] Add initial flake

holy shit nixos is magic :3
---
 flake.nix                  | 20 ++++++++
 hardware-configuration.nix | 62 +++++++++++++++++++++++++
 host-configuration.nix     | 95 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 177 insertions(+)
 create mode 100644 flake.nix
 create mode 100644 hardware-configuration.nix
 create mode 100644 host-configuration.nix

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..1bf3d9b
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,20 @@
+{
+  description = "NixOS Configuration";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+                 # ^^^^^^^^^^^^^ this part is optional
+  };
+
+  outputs = { self, nixpkgs }: 
+  let
+    lib = nixpkgs.lib;
+  in {
+    nixosConfigurations = {
+      slab = lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [ ./configuration.nix ];
+      };
+    };
+  };
+}
diff --git a/hardware-configuration.nix b/hardware-configuration.nix
new file mode 100644
index 0000000..1f2ed37
--- /dev/null
+++ b/hardware-configuration.nix
@@ -0,0 +1,62 @@
+# 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")
+    ];
+
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "usbhid" "sdhci_pci" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" "amdgpu" ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/5723dafa-81df-4bb4-a039-7f52b61cbb02";
+      fsType = "btrfs";
+      options = [ "subvol=nixos/@root" ];
+    };
+
+  # fileSystems."/boot" =
+  #   { device = "/dev/disk/by-uuid/b9813c1d-5b6c-4026-9ee3-53ba80b90dc4";
+  #     fsType = "ext4";
+  #   };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/4E1B-8BEE";
+      fsType = "vfat";
+    };
+
+  fileSystems."/.btrfsroot" =
+    { device = "/dev/disk/by-uuid/5723dafa-81df-4bb4-a039-7f52b61cbb02";
+      fsType = "btrfs";
+      options = [ "subvol=/" ];
+    };
+
+  fileSystems."/home" =
+    { device = "/dev/disk/by-uuid/5723dafa-81df-4bb4-a039-7f52b61cbb02";
+      fsType = "btrfs";
+      options = [ "subvol=@home" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/9360890a-4050-4326-bf5f-8fa2bdc6744a"; }
+    ];
+
+  # 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
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.br-6b5c424872ae.useDHCP = lib.mkDefault true;
+  # networking.interfaces.docker0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp3s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.tailscale0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.virbr0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp4s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
diff --git a/host-configuration.nix b/host-configuration.nix
new file mode 100644
index 0000000..302aff3
--- /dev/null
+++ b/host-configuration.nix
@@ -0,0 +1,95 @@
+# vim: set ts=2 sw=2 et: 
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  networking.hostName = "slab";
+
+  # cryptsetup
+  boot.initrd.luks.devices = {
+    lvmroot = {
+      device="/dev/disk/by-uuid/2872c0f0-e544-45f0-9b6c-ea022af7805a";
+      allowDiscards = true;
+      fallbackToPassword = true;
+      preLVM = true;
+    };
+  };
+
+  # bootloader setup
+  boot.loader = {
+    efi = {
+      canTouchEfiVariables = true;
+      efiSysMountPoint = "/boot";
+    };
+    # grub = {
+    #   enable = true;
+    #   efiSupport = true;
+    #   device = "nodev";
+    # };
+    systemd-boot = {
+      enable = true;
+      netbootxyz.enable = true;
+      memtest86.enable = true;
+    };
+  };
+
+  services.supergfxd.enable = true;
+
+  # Enable OpenGL
+  hardware.opengl = {
+    enable = true;
+    driSupport = true;
+    driSupport32Bit = true;
+  };
+
+  # Load nvidia driver for Xorg and Wayland
+  services.xserver.videoDrivers = ["amdgpu" "nvidia"];
+
+  hardware.nvidia = {
+
+    # Modesetting is required.
+    modesetting.enable = false;
+
+    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+    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+
+    # Currently alpha-quality/buggy, so false is currently the recommended setting.
+    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;
+
+    prime = {
+      offload = {
+        enable = true;
+        enableOffloadCmd = true;
+      };
+      amdgpuBusId = "PCI:07:00:0";
+      nvidiaBusId = "PCI:01:00:0";
+    };
+  };
+
+  services.syncthing = {
+    enable = true;
+    user = "nullbite";
+    dataDir = "/home/nullbite/Documents";
+    configDir = "/home/nullbite/.config/syncthing";
+  };
+
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = true;
+  };
+}