smartband7でアプリを作る
https://medium.com/@matteocuzzolin/mi-band-7-development-5a9d83ca0d71
https://medium.com/@matteocuzzolin/mi-band-7-development-5a9d83ca0d71#:~:text=カスタムアプリはバックグラウンドで実行できず
出オチじゃね？
https://mmk.pw/en/posts/mi-band-7-with-zepp/