package tui import tea "github.com/charmbracelet/bubbletea" func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) { switch msg := msg.(type) { case tea.KeyMsg: switch msg.String() { case "q", "ctrl+c": return m, tea.Quit case "up": m.count++ case "down": m.count-- } } return m, nil }