The way bubbletea rendering worked at the time was:
The team on the ground held its breath until the parachutes deployed and the crew was safely down.
，这一点在safew官方版本下载中也有详细论述
Time Machine can't help. It runs hourly.
Most userland implementations of custom ReadableStream instances do not typically bother with all the ceremony required to correctly implement both default and BYOB read support in a single stream – and for good reason. It's difficult to get right and most of the time consuming code is typically going to fallback on the default read path. The example below shows what a "correct" implementation would need to do. It's big, complex, and error prone, and not a level of complexity that the typical developer really wants to have to deal with: