lock the cmdQueue to avoid losing quickly entered commands

main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"sync"
 
 	"github.com/charmbracelet/bubbles/help"
 	"github.com/charmbracelet/bubbles/key"
@@ -68,7 +69,8 @@ type mainModel struct {
 	sub            chan struct{}
 	gMenu          bool
 
-	cmdQueue *todoist.Commands
+	cmdQueue  *todoist.Commands
+	syncMutex sync.Mutex
 
 	projectId string
 	sectionId string
@@ -102,8 +104,10 @@ func initialModel() *mainModel {
 	m.statusBarModel = status.New()
 	m.taskList = tasklist.New(func(t string) { m.statusBarModel.SetTitle(t) }, dbg)
 	m.inputModel = input.New(func() { m.state = viewInput }, func() { m.state = viewTasks }, keys.InputKeys)
+
 	m.local = new(todoist.Store)
 	m.cmdQueue = new(todoist.Commands)
+	m.syncMutex = sync.Mutex{}
 
 	m.sub = make(chan struct{})
 	return &m
@@ -365,7 +369,7 @@ func main() {
 		}
 		defer f.Close()
 	}
-	p := tea.NewProgram(initialModel(), tea.WithAltScreen())
+	p := tea.NewProgram(initialModel()) //, tea.WithAltScreen())
 	if _, err := p.Run(); err != nil {
 		fmt.Printf("Alas, there's been an error: %v", err)
 		os.Exit(1)

sync.go

@@ -200,7 +200,9 @@ func (m *mainModel) sync(cmds ...todoist.Command) tea.Cmd {
 	m.statusBarModel.SetSyncStatus(status.Syncing)
 	if len(cmds) > 0 {
 		m.applyCmds(cmds) // only 'new' ones
+		m.syncMutex.Lock()
 		*m.cmdQueue = append(*m.cmdQueue, cmds...)
+		m.syncMutex.Unlock()
 	}
 	return func() tea.Msg {
 		if len(*m.cmdQueue) > 0 {
@@ -209,7 +211,9 @@ func (m *mainModel) sync(cmds ...todoist.Command) tea.Cmd {
 			if err != nil {
 				dbg(err)
 				// the cache is the 'real' store and any unflushed commands
+				m.syncMutex.Lock()
 				err = client.WriteCache(m.client.Store, m.cmdQueue)
+				m.syncMutex.Unlock()
 				dbg(err)
 				return nil // no reason to sync if api calls aren't working
 			}
@@ -248,6 +252,8 @@ func (m *mainModel) sync(cmds ...todoist.Command) tea.Cmd {
 				dbg(err)
 			}
 		} else {
+			m.syncMutex.Lock()
+			defer m.syncMutex.Unlock()
 			syncToken := m.client.Store.SyncToken
 			incStore, err := m.client.IncrementalSync(m.ctx, syncToken)
 			if err != nil {