set up a default config

flake.lock

@@ -0,0 +1,66 @@
+{
+  "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1722630065,
+        "narHash": "sha256-QfM/9BMRkCmgWzrPDK+KbgJOUlSJnfX4OvsUupEUZvA=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "afc892db74d65042031a093adb6010c4c3378422",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "master",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1722421184,
+        "narHash": "sha256-/DJBI6trCeVnasdjUo9pbnodCLZcFqnVZiLUfqLH4jA=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "9f918d616c5321ad374ae6cb5ea89c9e04bf3e58",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1722519197,
+        "narHash": "sha256-VEdJmVU2eLFtLqCjTYJd1J7+Go8idAcZoT11IewFiRg=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "05405724efa137a0b899cce5ab4dde463b4fd30b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-stable": "nixpkgs-stable"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,61 @@
+{
+  description = "Mine very own Nix(OS) / home-manager / nix-darwin configuration";
+
+  inputs = {
+    # Nixpkgs
+    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-24.05";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    # Home manager
+    home-manager.url = "github:nix-community/home-manager/master";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs =
+    { self
+    , nixpkgs
+    , home-manager
+    , ...
+    } @ inputs:
+    let
+      inherit (self) outputs;
+      lib = nixpkgs.lib // home-manager.lib;
+      systems = [
+        "x86_64-linux"
+        "aarch64-darwin"
+      ];
+      forEachSystem = f: lib.genAttrs systems (system: import nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+      });
+      username = "lu";
+    in
+    {
+      packages = forEachSystem (pkgs: import ./pkgs { inherit pkgs; });
+      devShells = forEachSystem (pkgs: import ./shell.nix { inherit pkgs; });
+      formatter = forEachSystem (pkgs: pkgs.nixpkgs-fmt);
+
+      overlays = import ./overlays { inherit inputs outputs; };
+      nixosModules = import ./modules/nixos;
+      homeManagerModules = import ./modules/home-manager;
+
+      nixosConfigurations = {
+        enoko = lib.nixosSystem {
+          specialArgs = { inherit inputs outputs; };
+          modules = [
+            ./nixos/configuration.nix
+          ];
+        };
+      };
+
+      homeConfigurations = {
+        "${username}@yukari" = lib.homeManagerConfiguration {
+          pkgs = nixpkgs.legacyPackages.x86_64-linux;
+          extraSpecialArgs = { inherit inputs outputs username; };
+          modules = [
+            ./home-manager/home.nix
+          ];
+        };
+      };
+    };
+}

home-manager/home.nix

@@ -0,0 +1,52 @@
+# This is your home-manager configuration file
+# Use this to configure your home environment (it replaces ~/.config/nixpkgs/home.nix)
+{ inputs
+, outputs
+, lib
+, config
+, pkgs
+, username
+, ...
+}: {
+  # You can import other home-manager modules here
+  imports = [
+    # If you want to use modules your own flake exports (from modules/home-manager):
+    # outputs.homeManagerModules.example
+
+    # Or modules exported from other flakes (such as nix-colors):
+    # inputs.nix-colors.homeManagerModules.default
+
+    ./neovim.nix
+  ];
+
+  nixpkgs = {
+    # You can add overlays here
+    overlays = [
+      # Add overlays your own flake exports (from overlays and pkgs dir):
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+    ];
+
+    # Configure your nixpkgs instance
+    config = {
+      # Disable if you don't want unfree packages
+      allowUnfree = true;
+    };
+  };
+
+  home = {
+    inherit username;
+    homeDirectory = "/home/${username}";
+  };
+
+  # Enable home-manager and git
+  programs.home-manager.enable = true;
+  programs.git.enable = true;
+
+  # Nicely reload system units when changing configs
+  systemd.user.startServices = "sd-switch";
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  home.stateVersion = "24.05";
+}

home-manager/neovim.nix

@@ -0,0 +1,121 @@
+{ config, lib, pkgs, ... }:
+
+{
+  programs.neovim = {
+    extraPackages = with pkgs; [
+      # LazyVim
+      lua-language-server
+      stylua
+      # Telescope
+      ripgrep
+    ];
+
+    plugins = with pkgs.vimPlugins; [
+      lazy-nvim
+    ];
+
+    extraLuaConfig =
+      let
+        plugins = with pkgs.vimPlugins; [
+          # LazyVim
+          LazyVim
+          bufferline-nvim
+          cmp-buffer
+          cmp-nvim-lsp
+          cmp-path
+          cmp_luasnip
+          conform-nvim
+          dashboard-nvim
+          dressing-nvim
+          flash-nvim
+          friendly-snippets
+          gitsigns-nvim
+          indent-blankline-nvim
+          lualine-nvim
+          neo-tree-nvim
+          neoconf-nvim
+          neodev-nvim
+          noice-nvim
+          nui-nvim
+          nvim-cmp
+          nvim-lint
+          nvim-lspconfig
+          nvim-notify
+          nvim-spectre
+          nvim-treesitter
+          nvim-treesitter-context
+          nvim-treesitter-textobjects
+          nvim-ts-autotag
+          nvim-ts-context-commentstring
+          nvim-web-devicons
+          persistence-nvim
+          plenary-nvim
+          telescope-fzf-native-nvim
+          telescope-nvim
+          todo-comments-nvim
+          tokyonight-nvim
+          trouble-nvim
+          vim-illuminate
+          vim-startuptime
+          which-key-nvim
+          { name = "LuaSnip"; path = luasnip; }
+          { name = "catppuccin"; path = catppuccin-nvim; }
+          { name = "mini.ai"; path = mini-nvim; }
+          { name = "mini.bufremove"; path = mini-nvim; }
+          { name = "mini.comment"; path = mini-nvim; }
+          { name = "mini.indentscope"; path = mini-nvim; }
+          { name = "mini.pairs"; path = mini-nvim; }
+          { name = "mini.surround"; path = mini-nvim; }
+        ];
+        mkEntryFromDrv = drv:
+          if lib.isDerivation drv then
+            { name = "${lib.getName drv}"; path = drv; }
+          else
+            drv;
+        lazyPath = pkgs.linkFarm "lazy-plugins" (builtins.map mkEntryFromDrv plugins);
+      in
+      ''
+        require("lazy").setup({
+          defaults = {
+            lazy = true,
+          },
+          dev = {
+            -- reuse files from pkgs.vimPlugins.*
+            path = "${lazyPath}",
+            patterns = { "." },
+            -- fallback to download
+            fallback = true,
+          },
+          spec = {
+            { "LazyVim/LazyVim", import = "lazyvim.plugins" },
+            -- The following configs are needed for fixing lazyvim on nix
+            -- force enable telescope-fzf-native.nvim
+            { "nvim-telescope/telescope-fzf-native.nvim", enabled = true },
+            -- disable mason.nvim, use programs.neovim.extraPackages
+            { "williamboman/mason-lspconfig.nvim", enabled = false },
+            { "williamboman/mason.nvim", enabled = false },
+            -- import/override with your plugins
+            { import = "plugins" },
+            -- treesitter handled by xdg.configFile."nvim/parser", put this line at the end of spec to clear ensure_installed
+            { "nvim-treesitter/nvim-treesitter", opts = { ensure_installed = {} } },
+          },
+        })
+      '';
+  };
+
+  # https://github.com/nvim-treesitter/nvim-treesitter#i-get-query-error-invalid-node-type-at-position
+  xdg.configFile."nvim/parser".source =
+    let
+      parsers = pkgs.symlinkJoin {
+        name = "treesitter-parsers";
+        paths = (pkgs.vimPlugins.nvim-treesitter.withPlugins (plugins: with plugins; [
+          c
+          lua
+        ])).dependencies;
+      };
+    in
+    "${parsers}/parser";
+
+  # Normal LazyVim config here, see https://github.com/LazyVim/starter/tree/main/lua
+  xdg.configFile."nvim/lua".source = ./lua;
+}

modules/home-manager/default.nix

@@ -0,0 +1,6 @@
+# Add your reusable home-manager modules to this directory, on their own file (https://nixos.wiki/wiki/Module).
+# These should be stuff you would like to share with others, not your personal configurations.
+{
+  # List your module files here
+  # my-module = import ./my-module.nix;
+}

modules/nixos/default.nix

@@ -0,0 +1,6 @@
+# Add your reusable NixOS modules to this directory, on their own file (https://nixos.wiki/wiki/Module).
+# These should be stuff you would like to share with others, not your personal configurations.
+{
+  # List your module files here
+  # my-module = import ./my-module.nix;
+}

nixos/configuration.nix

@@ -0,0 +1,108 @@
+# This is your system's configuration file.
+# Use this to configure your system environment (it replaces /etc/nixos/configuration.nix)
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
+  # You can import other NixOS modules here
+  imports = [
+    # If you want to use modules your own flake exports (from modules/nixos):
+    # outputs.nixosModules.example
+
+    # Or modules from other flakes (such as nixos-hardware):
+    # inputs.hardware.nixosModules.common-cpu-amd
+    # inputs.hardware.nixosModules.common-ssd
+
+    # You can also split up your configuration and import pieces of it here:
+    # ./users.nix
+
+    # Import your generated (nixos-generate-config) hardware configuration
+    ./hardware-configuration.nix
+  ];
+
+  nixpkgs = {
+    # You can add overlays here
+    overlays = [
+      # Add overlays your own flake exports (from overlays and pkgs dir):
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.unstable-packages
+
+      # You can also add overlays exported from other flakes:
+      # neovim-nightly-overlay.overlays.default
+
+      # Or define it inline, for example:
+      # (final: prev: {
+      #   hi = final.hello.overrideAttrs (oldAttrs: {
+      #     patches = [ ./change-hello-to-hi.patch ];
+      #   });
+      # })
+    ];
+    # Configure your nixpkgs instance
+    config = {
+      # Disable if you don't want unfree packages
+      allowUnfree = true;
+    };
+  };
+
+  nix = let
+    flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs;
+  in {
+    settings = {
+      # Enable flakes and new 'nix' command
+      experimental-features = "nix-command flakes";
+      # Opinionated: disable global registry
+      flake-registry = "";
+      # Workaround for https://github.com/NixOS/nix/issues/9574
+      nix-path = config.nix.nixPath;
+    };
+    # Opinionated: disable channels
+    channel.enable = false;
+
+    # Opinionated: make flake registry and nix path match flake inputs
+    registry = lib.mapAttrs (_: flake: {inherit flake;}) flakeInputs;
+    nixPath = lib.mapAttrsToList (n: _: "${n}=flake:${n}") flakeInputs;
+  };
+
+  # FIXME: Add the rest of your current configuration
+
+  # TODO: Set your hostname
+  networking.hostName = "your-hostname";
+
+  # TODO: Configure your system-wide user settings (groups, etc), add more users as needed.
+  users.users = {
+    # FIXME: Replace with your username
+    your-username = {
+      # TODO: You can set an initial password for your user.
+      # If you do, you can skip setting a root password by passing '--no-root-passwd' to nixos-install.
+      # Be sure to change it (using passwd) after rebooting!
+      initialPassword = "correcthorsebatterystaple";
+      isNormalUser = true;
+      openssh.authorizedKeys.keys = [
+        # TODO: Add your SSH public key(s) here, if you plan on using SSH to connect
+      ];
+      # TODO: Be sure to add any other groups you need (such as networkmanager, audio, docker, etc)
+      extraGroups = ["wheel"];
+    };
+  };
+
+  # This setups a SSH server. Very important if you're setting up a headless system.
+  # Feel free to remove if you don't need it.
+  services.openssh = {
+    enable = true;
+    settings = {
+      # Opinionated: forbid root login through SSH.
+      PermitRootLogin = "no";
+      # Opinionated: use keys only.
+      # Remove if you want to SSH using passwords
+      PasswordAuthentication = false;
+    };
+  };
+
+  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
+  system.stateVersion = "23.05";
+}

nixos/hardware-configuration.nix

@@ -0,0 +1,12 @@
+# This is just an example, you should generate yours with nixos-generate-config and put it in here.
+{
+  boot.loader.systemd-boot.enable = true;
+
+  fileSystems."/" = {
+    device = "/dev/sda1";
+    fsType = "ext4";
+  };
+
+  # Set your system kind (needed for flakes)
+  nixpkgs.hostPlatform = "x86_64-linux";
+}

overlays/default.nix

@@ -0,0 +1,23 @@
+# This file defines overlays
+{inputs, ...}: {
+  # This one brings our custom packages from the 'pkgs' directory
+  additions = final: _prev: import ../pkgs final.pkgs;
+
+  # This one contains whatever you want to overlay
+  # You can change versions, add patches, set compilation flags, anything really.
+  # https://nixos.wiki/wiki/Overlays
+  modifications = final: prev: {
+    # example = prev.example.overrideAttrs (oldAttrs: rec {
+    # ...
+    # });
+  };
+
+  # When applied, the unstable nixpkgs set (declared in the flake inputs) will
+  # be accessible through 'pkgs.unstable'
+  unstable-packages = final: _prev: {
+    unstable = import inputs.nixpkgs-unstable {
+      system = final.system;
+      config.allowUnfree = true;
+    };
+  };
+}

pkgs/default.nix

@@ -0,0 +1,5 @@
+# Custom packages, that can be defined similarly to ones from nixpkgs
+# You can build them using 'nix build .#example'
+pkgs: {
+  # example = pkgs.callPackage ./example { };
+}

shell.nix

@@ -0,0 +1,19 @@
+# Shell for bootstrapping flake-enabled nix and other tooling
+{ pkgs ? let
+    lock = (builtins.fromJSON (builtins.readFile ./flake.lock)).nodes.nixpkgs.locked;
+    nixpkgs = fetchTarball {
+      url = "https://github.com/nixos/nixpkgs/archive/${lock.rev}.tar.gz";
+      sha256 = lock.narHash;
+    };
+  in
+  import nixpkgs { overlays = [ ]; }
+, ...
+}: {
+  default = pkgs.mkShell {
+    NIX_CONFIG = "extra-experimental-features = nix-command flakes repl-flake";
+    nativeBuildInputs = with pkgs; [
+      home-manager
+      git
+    ];
+  };
+}