Can not open Sidekick - “Sidekick” can’t be opened because Apple cannot check it for malicious software.

[Vuong Nguyen Thien]

After download from this link, i install Sidekick and open it.
But i got a error message:

[Eduardo Moreno]

https://github.com/fluttertools/sidekick/wiki/Installing#installing-with-dmg-recommended