replace rnix lsp with nil

modules/neovim/lua/packer/lsp.lua

@@ -46,8 +46,8 @@ M.packer = function(use)
                     capabilities = capabilities,
                 })
             end
-            if on_path("rnix-lsp") then
-                require("lspconfig").rnix.setup({ capabilities = capabilities })
+            if on_path("nil") then
+                require("lspconfig").nil_ls.setup({ capabilities = capabilities })
             end
 
             vim.keymap.set("n", "gd", vim.lsp.buf.definition)

modules/programming/nix.nix

@@ -4,7 +4,7 @@
 
     home.packages = with pkgs; [
       nixfmt # Nix file formatter
-      rnix-lsp # Nix language server
+      nil # Nix language server
     ];
 
   };