wingetautoupdate/Winget-AutoUpdate/mods/README.md

Pre/During/Post install/uninstall custom scripts should be placed here.
A script Template and Mods Functions are included as example to get you started...

Scripts that are considered:
AppID-preinstall.ps1, -upgrade.ps1, -install.ps1, -installed.ps1, -preuninstall.ps1, -uninstall.ps1 or -uninstalled.ps1

The -install mod will be used for upgrades too if -upgrade doesn't exist (WAU first tries & $Winget upgrade --id and if the app isn't detected after that & $Winget install --id is tried). AppID-install.ps1 is recommended because it's used in both scenarios.

AppID-override.txt (the content) will be used as a native winget --override parameter when upgrading