Handoff
With Handoff, you can switch from the device on which you started working to another nearby device and smoothly continue where you left off.
Pages opened on a MacBook can be opened from here on an iPad.
https://gyazo.com/a57663d3a1a9afb7afe0a4b8d6791998
Pages opened on the iPhone can be opened from here on the MacBook.
https://gyazo.com/b7d40929160e4610feb28bec911736f4
Open on iPhone from the bottom of the application switching screen.
https://gyazo.com/6d2cfb3be598084bc2acd2c09e370a6b
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This page is auto-translated from /nishio/Handoff using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.