nixos/flake.nix

{
  description = "Evie's machine configurations";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    stylix = {
      url = "github:danth/stylix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    anyrun = {
      url = "github:Kirottu/anyrun";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    watershot = {
      url = "github:Kirottu/watershot";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # Non-flake inputs
    doom-emacs = {
      url = "github:doomemacs/doomemacs";
      flake = false;
    };
    gitui = {
      url = "github:extrawurst/gitui";
      flake = false;
    };
    tokyonight-folke = {
      url = "github:folke/tokyonight.nvim";
      flake = false;
    };
  };

  outputs = { self, nixpkgs, home-manager, stylix, ... }@inputs:
    let
      default = {
        hostName = "Atlas";
        user = "xenia";
        system = "x86_64-linux";
        group = "users";
        shell = "zsh";
        systemModules = [ ./system/hyprland.nix ];
        serviceModules =
          [ ./services/sshd/default.nix ./services/syncthing/default.nix ];
        homeModules = [
          ./home/accounts/default.nix
          ./home/emacs/default.nix
          ./home/ferdium/default.nix
          ./home/hyprland/default.nix
          ./home/alacritty.nix
          ./home/default.nix
          ./home/firefox.nix
          ./home/kdeconnect.nix
          ./home/media.nix
          ./home/pass.nix
          ./home/zathura.nix
        ];
        stateVersion = "23.05";
      };
      systemConfig = { hostName ? default.hostName, user ? default.user
        , system ? default.system, group ? default.group, shell ? default.shell
        , systemModules ? default.systemModules
        , serviceModules ? default.serviceModules
        , homeModules ? default.homeModules, stateVersion ? default.stateVersion
        }:
        let
          specialArgs = {
            inherit hostName user;
            inherit (inputs) anyrun watershot;
          };
          extraSpecialArgs = specialArgs // {
            inherit (inputs) doom-emacs gitui tokyonight-folke;
          };
        in nixpkgs.lib.nixosSystem {
          inherit system specialArgs;
          modules = [
            ./hosts/${hostName}/configuration.nix
            ./hosts/${hostName}/hardware-configuration.nix
            home-manager.nixosModules.home-manager
            stylix.nixosModules.stylix
            ({ config, lib, pkgs, ... }: {
              boot.loader = {
                systemd-boot.enable = true;
                efi.canTouchEfiVariables = true;
              };
              programs.${shell}.enable = true;
              nix = {
                enable = true;
                settings = {
                  experimental-features = [ "nix-command" "flakes" ];
                  auto-optimise-store = true;
                };
                channel.enable = false;
                nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
                registry = {
                  nixpkgs.to = {
                    type = "path";
                    path = pkgs.path;
                  };
                };
                gc = {
                  automatic = true;
                  options = "--delete-older-than 7d";
                };
                optimise.automatic = true;
                extraOptions = ''
                  keep-outputs = true
                  keep-derivations = true
                  min-free = ${toString (100 * 1024 * 1024)}
                  max-free = ${toString (1024 * 1024 * 1024)}
                '';
              };
              nixpkgs.config.allowUnfreePredicate = pkg:
                builtins.elem (lib.getName pkg) [
                  "steam"
                  "steam-original"
                  "steam-run"
                  "nomachine-client"
                ];
              system = { inherit stateVersion; };
              networking = { inherit hostName; };
              users.users.${user} = {
                inherit group;
                isNormalUser = true;
                description = "Evie Litherland-Smith";
                extraGroups = [ "networkmanager" "wheel" "video" ];
                shell = pkgs.${shell};
                initialHashedPassword =
                  "$y$j9T$tHIPQt09Kf3KH2eIRze3g/$2mwSlcq27DTGvHNPJ5EP9/1CfL3bXP0F6oS/Vuffmn3";
                openssh.authorizedKeys.keys = [
                  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIANfkqd5lPTsSPU3SRYnAa1UjCYDmDeBTyzq5McmWlm6 xenia@Vanguard"
                  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINI1dWlS16Keil0MGPWmMsBzx8F9ylfz+fRwxUr8/tZ/ ion"
                  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDI44C35I2x9tqzeZDmIpbzmGJWXfATn/Wp5KzVRdlCi root@debian"
                  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKMVEXJTqWkrpmvinPJGsSvome9bCd0CM4iu13aVG6UZ elitherl@Ronin"
                  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJ/ZSSCN5sqrA+tdoIZr5EUm5DRuBV4dQ7J+QBEtUwUU xenia@Northstar"
                ];
              };
              home-manager = {
                inherit extraSpecialArgs;
                useGlobalPkgs = true;
                useUserPackages = true;
                users.${user} = let
                  username = user;
                  homeDirectory = "/home/${user}";
                in {
                  imports = [ ./hosts/${hostName}/home.nix ./home/default.nix ]
                    ++ homeModules;
                  home = { inherit username homeDirectory stateVersion; };
                  programs.home-manager.enable = true;
                  xdg.userDirs = {
                    enable = true;
                    createDirectories = true;
                    extraConfig = {
                      XDG_PROJECTS_DIR = "${homeDirectory}/Projects";
                    };
                  };
                };
              };
            })
          ] ++ systemModules ++ serviceModules;
        };
    in {
      nixosConfigurations = {

        Legion = let
          hostName = "Legion";
          user = "xenia";
          system = "x86_64-linux";
        in systemConfig {
          inherit hostName user system;
          systemModules = [ ./system/default.nix ];
          serviceModules = [
            # ./services/adguardhome/default.nix
            ./services/gitea/default.nix
            ./services/nextcloud/default.nix
            ./services/sshd/default.nix
            ./services/syncthing/default.nix
            # ./services/terraria/windy_limbo_of_melancholy.nix
            # ./services/traefik/adguardhome.nix
            ./services/traefik/gitea.nix
            ./services/traefik/nextcloud.nix
            # ./services/traefik/qbittorrent.nix
          ];
          homeModules = [ ./home/default.nix ];
        };

        Northstar = let
          hostName = "Northstar";
          user = "xenia";
          system = "x86_64-linux";
        in systemConfig {
          inherit hostName user system;
          systemModules = default.systemModules ++ [ ./system/steam.nix ];
        };

        Ronin = let
          hostName = "Ronin";
          user = "elitherl";
          system = "x86_64-linux";
        in systemConfig { inherit hostName user system; };

        Scorch = let
          hostName = "Scorch";
          user = "elitherl";
          system = "x86_64-linux";
        in systemConfig { inherit hostName user system; };

        Vanguard = let
          hostName = "Vanguard";
          user = "xenia";
          system = "x86_64-linux";
        in systemConfig {
          inherit hostName user system;
          systemModules = default.systemModules ++ [ ./system/steam.nix ];
        };

      };
    };
}