nvim config updated

.config/nvim/lua/autocmds.lua

@@ -0,0 +1,21 @@
+-- Autocommand: trigger Flutter hot reload on save
+--
+-- This runs whenever you save a *.dart file (BufWritePost).
+-- It checks if a tmux session named "flutter" exists.
+-- If it does, it sends the keys "r<Enter>" to the "app" window
+-- of that session, which tells `flutter run` to hot-reload.
+--
+-- Workflow:
+--   1. Start tmux:   tmux new -s flutter -n app
+--   2. Inside tmux "app" window, run: flutter run
+--   3. Open another window/pane for nvim.
+--   4. Whenever you :w a Dart file in nvim, hot reload will fire.
+--
+
+vim.api.nvim_create_autocmd("BufWritePost", {
+  pattern = "*.dart",
+  callback = function()
+    local result = vim.fn.system({ "tmux", "send-keys", "-t", "flutter:app", "r", "Enter" })
+    vim.notify("Flutter hot reload triggered", vim.log.levels.INFO)
+  end,
+})