feat: TabNine and Copilot assistants

modules/assistant/copilot.nix

@@ -0,0 +1,24 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+with lib;
+with builtins; let
+  cfg = config.vim.assistant.copilot;
+in {
+  options.vim.assistant.copilot = {
+    enable = mkEnableOption "Enable GitHub Copilot";
+  };
+
+  config = mkIf cfg.enable {
+    vim.startPlugins = ["copilot-lua"];
+
+    vim.luaConfigRC.copilot = nvim.dag.entryAnywhere ''
+      require("copilot").setup({
+        -- available options: https://github.com/zbirenbaum/copilot.lua
+      })
+    '';
+  };
+}

modules/assistant/default.nix

@@ -0,0 +1,6 @@
+_: {
+  imports = [
+    ./copilot.nix
+    ./tabnine.nix
+  ];
+}

modules/assistant/tabnine.nix

@@ -0,0 +1,28 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+with lib;
+with builtins; let
+  cfg = config.vim.assistant.tabnine;
+in {
+  options.vim.assistant.tabnine = {
+    enable = mkEnableOption "Enable TabNine assistant";
+  };
+
+  config = mkIf cfg.enable {
+    vim.startPlugins = ["tabnine-nvim"];
+
+    vim.luaConfigRC.tabnine-nvim = nvim.dag.entryAnywhere ''
+      require('tabnine').setup({
+        disable_auto_comment=true,
+        accept_keymap="<Tab>",
+        dismiss_keymap = "<C-]>",
+        debounce_ms = 800,
+      execlude_filetypes = {"TelescopePrompt", "NvimTree", "alpha"}
+      })
+    '';
+  };
+}