Simple python script which decodes the content of a SMART health card like the ones being rolled out as vaccine cards in BC, Quebec and other jurisdictions.
Read your smart health card using a generic QR code reader, this should show you a string something like:
shc:/01234567890123456789...
Copy the long string of decimal digits, and feed that to the python script on standard in.
SMART Health Cards are an open standard for this type of health information, the main website is at https://smarthealth.cards/, and the specification is at https://spec.smarthealth.cards/.