== 1. put 0.35.1 in the npx cache entry and start it (the 'old' bb)
{"currentVersion":"0.35.1","latestVersion":"0.38.0","source":"npm","updateAvailable":true,"isDevelopment":false,"upgradeCommand":"npx bb-app@latest"}
== 2. do what the Updates page tells you, in a second terminal, without stopping the old bb
      1   ●  bb is ready
      1   !  Another bb already runs on this data directory
      2   !  host daemon exited with code 1 - restarting host daemon
     22   !  server exited with code 1 - restarting server
     22   code: 'EADDRINUSE',
     22 Error: listen EADDRINUSE: address already in use 127.0.0.1:49901
      2 Error: Lock file is already being held
== 3. what the app URL actually serves
{"currentVersion":"0.35.1","latestVersion":"0.38.0","source":"npm","updateAvailable":true,"isDevelopment":false,"upgradeCommand":"npx bb-app@latest"}
  "version": "0.38.0",
  ✓  Stopped bb (pid 1296862)