Download and install Rosetta 2:
% softwareupdate --install-rosetta --agree-to-license
Find path to installer:
% grep RosettaUpdateAuto.pkg /var/log/install.log
Copy installer for safekeeping:
% cp /path/to/RosettaUpdateAuto.pkg /path/to/backup/dir/
Turn on new M1 Mac mini, keeping it disconnected from Internet
Copy Intel-only app to /Applications and attempt to launch:
Select "Not Now"
Run RosettaUpdateAuto.pkg installer:
Relaunch nvALT - success:
RosettaUpdateAuto.pkg is 469,647 bytes with a SHA-256 checksum of 4079935a65385c6da8063e0c35a48419c03618bab8111ee35198c4baa1d7c81b
Contents of RosettaUpdateAuto.pkg as reported by Suspicious Package:
/mac | Mar 27, 2021