nix changes

flake.lock

@@ -18,6 +18,24 @@
         "type": "github"
       }
     },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1687709756,
+        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -61,7 +79,43 @@
         "type": "github"
       }
     },
+    "nil": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1695485017,
+        "narHash": "sha256-aQyRBJnT4tftexM/Y3etfOk8tfMFZzt+vSVtL2J0KLY=",
+        "owner": "oxalica",
+        "repo": "nil",
+        "rev": "510bc6e9b41d39c81b9c815065cb5b7e23a2428c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "nil",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1690441914,
+        "narHash": "sha256-Ac+kJQ5z9MDAMyzSc0i0zJDx2i3qi9NjlW5Lz285G/I=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "db8672b8d0a2593c2405aed0c1dfa64b2a2f428f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1695360818,
         "narHash": "sha256-JlkN3R/SSoMTa+CasbxS1gq+GpGxXQlNZRUh9+LIy/0=",
@@ -81,7 +135,33 @@
       "inputs": {
         "home-manager": "home-manager",
         "neovim": "neovim",
-        "nixpkgs": "nixpkgs"
+        "nil": "nil",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "nil",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nil",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1688783586,
+        "narHash": "sha256-HHaM2hk2azslv1kH8zmQxXo2e7i5cKgzNIuK4yftzB0=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "7a29283cc242c2486fc67f60b431ef708046d176",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     },
     "systems": {
@@ -98,6 +178,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -11,12 +11,14 @@
       url = "github:neovim/neovim?dir=contrib";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    nil.url = "github:oxalica/nil";
   };
 
   outputs = { nixpkgs, home-manager, neovim, ... }:
     let
-      system = "x86_64-linux"; # change your system type here
-      user = "nikos";          # change your user here
+      system = "x86_64-linux";                # change your system type here
+      user = "nikos";                         # change your user here
+      dotfilesHome = "/home/nikos/.dotfiles"; # specify your dotfiles path
       pkgs = nixpkgs.legacyPackages.${system};
     in
     {
@@ -36,6 +38,8 @@
             ];
           }
         ];
+
+        extraSpecialArgs = { extra = { inherit user dotfilesHome; }; };
       };
     };
 }

home.nix

@@ -1,8 +1,8 @@
-{ config, pkgs, lib, ... }:
+{ config, pkgs, lib, extra, ... }:
 
 {
-  home.username = "nikos";
-  home.homeDirectory = "/home/nikos";
+  home.username = "${extra.user}";
+  home.homeDirectory = "/home/${extra.user}";
 
   # This value determines the Home Manager release that your configuration is
   # compatible with. This helps avoid breakage when a new Home Manager release
@@ -22,7 +22,7 @@
 
   xdg.dataFile = {
     "nvim/lazy-lock.json".source =
-      config.lib.file.mkOutOfStoreSymlink "${config.home.homeDirectory}/.dotfiles/lazy-lock.json";
+      config.lib.file.mkOutOfStoreSymlink "${extra.dotfilesHome}/lazy-lock.json";
   };
 
   # The home.packages option allows you to install Nix packages into your
@@ -49,15 +49,14 @@
 
   programs.fish = {
     enable = true;
-    shellInit = builtins.readFile ./fish/config.fish;
-    functions = lib.attrsets.mapAttrs'
+    shellInit = lib.strings.concatStringsSep "\n" ([
+      (builtins.readFile ./fish/config.fish)
+    ] ++ lib.attrsets.mapAttrsToList
       (
-        name: value: {
-          name = builtins.replaceStrings [ ".fish" ] [ "" ] name;
-          value = builtins.readFile (./fish/functions + ("/" + name));
-        }
+        name: value: builtins.readFile (./fish/functions + ("/" + name))
       )
-      (builtins.readDir ./fish/functions);
+      (builtins.readDir ./fish/functions)
+    );
   };
 
   # Let Home Manager install and manage itself.

nvim/after/plugin/lspconfig.lua

@@ -125,7 +125,7 @@ local servers = {
         },
     },
     gopls = {},
-    rnix = {},
+    nil_ls = {},
     jedi_language_server = {}, -- python lsp
     ruff_lsp = {},             -- python linter
     rust_analyzer = {

packages.nix

@@ -3,5 +3,6 @@ pkgs: with pkgs; [
   ripgrep # "rg" cli, alternative to grep, used by nvim
   fd # find alternative, used by nvim
   lsd # "ls" alternative
+  nil # Nix LSP
   (nerdfonts.override { fonts = [ "JetBrainsMono" ]; }) # nerdfonts jetbrains mono
 ]