diff --git a/lua/plugins/lspconfig.lua b/lua/plugins/lspconfig.lua
index 3ba6be2..66d4910 100644
--- a/lua/plugins/lspconfig.lua
+++ b/lua/plugins/lspconfig.lua
@@ -164,20 +164,49 @@ return { -- LSP Configuration & Plugins
         -- nvim 0.11 or above
         vim.lsp.config('vtsls', vtsls_config)
         vim.lsp.config('vue_ls', vue_ls_config)
+        -- vim.lsp.config('nixd', {
+        --     settings = {
+        --         nixpkgs = {
+        --             expr = "import <nixpkgs> { }"
+        --         },
+        --         options = {
+        --             nixos = {
+        --                 expr = '(builtins.getFlake "/etc/nixos/").nixosConfigurations.pcerik.options',
+        --             },
+        --             home_manager = {
+        --                 expr = '(builtins.getFlake "/etc/nixos").homeConfigurations.erik.options',
+        --             },
+        --         }
+        --     }
+        -- })
         vim.lsp.config('nixd', {
-            settings = {
-                nixpkgs = {
-                    expr = "import <nixpkgs> { }"
+            cmd = { "nixd" },
+    settings = {
+        nixd = {
+            nixpkgs = {
+                -- For flake.
+                -- This expression will be interpreted as "nixpkgs" toplevel
+                -- Nixd provides package, lib completion/information from it.
+                -- Resource Usage: Entries are lazily evaluated, entire nixpkgs takes 200~300MB for just "names".
+                -- Package documentation, versions, are evaluated by-need.
+                expr = "import (builtins.getFlake(toString ./.)).inputs.nixpkgs { }",
+            },
+            formatting = {
+                command = { "alejandra" }, -- or nixfmt or nixpkgs-fmt
+            },
+            options = {
+                nixos = {
+                    expr = "let flake = builtins.getFlake(toString ./.); in flake.nixosConfigurations.webserver.options",
                 },
-                options = {
-                    nixos = {
-                        expr = '(builtins.getFlake "/etc/nixos/").nixosConfigurations.pcerik.options',
-                    },
-                    home_manager = {
-                        expr = '(builtins.getFlake "/etc/nixos").homeConfigurations.erik.options',
-                    },
-                }
-            }
+                -- home_manager = {
+                --     expr = 'let flake = builtins.getFlake(toString ./.); in flake.homeConfigurations."erik".options',
+                -- },
+                -- darwin = {
+                --     expr = 'let flake = builtins.getFlake(toString ./.); in flake.darwinConfigurations."MacBook-Air-von-Erik".options',
+                -- },
+            },
+        },
+    },
         })
 
         vim.lsp.config("ltex_plus", {