dev

type Config struct {
	// ProjectRoot is the project's module root (the directory containing go.mod).
	ProjectRoot string

	// AppPath is the Go package path passed to `go run`, e.g. "./cmd/myapp".
	AppPath string

	// CSSIn / CSSOut are the Tailwind input/output paths (relative to
	// ProjectRoot). Both empty means no Tailwind co-watcher.
	CSSIn  string
	CSSOut string

	// WatchExts is the set of file extensions (lowercase, leading dot)
	// that trigger a restart, e.g. {".go", ".html", ".css", ".toml",
	// ".yml", ".yaml"}. TOML and YAML are included so changes to
	// translation bundles and config files are picked up without an
	// explicit `--watch-exts` override.
	WatchExts []string

	// ExcludeDirs is the set of directory names (no path separators)
	// or repo-relative paths to skip during the project walk. Names
	// match anywhere in the tree (".git" matches every .git dir);
	// path entries (containing a separator) match only at that exact
	// location relative to ProjectRoot.
	ExcludeDirs []string

	// Debounce is the quiet window after the first file event before a
	// restart is triggered. Coalesces editor save-rename storms.
	Debounce time.Duration

	// KillTimeout is how long SIGTERM is given before SIGKILL.
	KillTimeout time.Duration

	// EnvFile, when non-empty, is parsed via godotenv and the
	// resulting KEY=VALUE pairs are injected into the child process
	// environment. Missing file is not an error — the dev server
	// auto-creates it with conventional defaults (see [EnsureEnvFile]).
	EnvFile string

	// Stdout / Stderr are where the dev server writes its own log
	// lines (children always inherit os.Stdout / os.Stderr).
	Stdout io.Writer
	Stderr io.Writer
}