                   Test                 Timing
  Terminal         ├ Shared HOME        ├ Fixed sleeps
  ├ Wrong TERM     ├ Leftover           ├ Reply hook
  ├ Small window   │   daemon           │   race
━━┻━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━▶ Flaky E2E test
                   Code                 Machine
                   ├ Unbuffered         ├ Busy CI runner
                   │   channel          └ Slow disk
                   └ Missing
                       condition wait
