Initial config

TODO

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+- distributed build (https://nix.dev/tutorials/nixos/distributed-builds-setup)
+- setup script (https://github.com/jakeb-grant/nix-configs/blob/main/setup.sh)

flake.nix

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+{
+  description = "Opti NixOS Flake";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+
+    disko = {
+      url = "github:nix-community/disko";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, disko, ... }@inputs: {
+    nixosConfigurations = {
+      opti = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [ disko.nixosModules.disko ./hosts/opti ];
+      };
+    };
+  };
+}

hosts/opti/configuration.nix

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+{ config, lib, pkgs, meta, ... }:
+
+{
+  imports = [ ./hardware-configuration.nix ./disko.nix ./configuration.nix ];
+
+  nix = {
+    package = pkgs.nixFlakes;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+
+  boot.loader = {
+    systemd-boot.enable = true;
+    efi.canTouchEfiVariables = true;
+  };
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  networking = {
+    hostName = "opti";
+    networkmanager.enable = true;
+    firewall.enable = false; # TODO: Configure firewall
+  };
+
+  services.openssh.enable = true;
+
+  environment.systemPackages = with pkgs; [ git ];
+
+  users.users.wekuz = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    packages = with pkgs; [ ];
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBs3aPxyJpVGytuVSO3va2WybKNFMR241o8DCJQbBEWV"
+    ];
+  };
+
+  system.stateVersion = "25.05";
+}

hosts/opti/disko.nix

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+{
+  disko.devices = {
+    disk = {
+      one = {
+        type = "disk";
+        device = "/dev/disk/by-id/nvme-eui.00000000000000000c82d58020000000";
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              size = "500M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            primary = {
+              size = "100%";
+              content = {
+                type = "lvm_pv";
+                vg = "pool";
+              };
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      pool = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "96G";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/";
+              mountOptions = [ "defaults" ];
+            };
+          };
+          home = {
+            size = "100%FREE";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/home";
+            };
+          };
+        };
+      };
+    };
+  };
+}

iso/iso.nix

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+{
+  description = "My NixOS installation media";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  outputs = { self, nixpkgs }: {
+    packages.x86_64-linux.default =
+      self.nixosConfigurations.exampleIso.config.system.build.isoImage;
+    nixosConfigurations = {
+      exampleIso = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          ({ pkgs, modulesPath, ... }: {
+            imports = [
+              (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
+            ];
+            systemd.services.sshd.wantedBy =
+              pkgs.lib.mkForce [ "multi-user.target" ];
+            users.users.root.openssh.authorizedKeys.keys = [
+              "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBs3aPxyJpVGytuVSO3va2WybKNFMR241o8DCJQbBEWV"
+            ];
+          })
+        ];
+      };
+    };
+  };
+}