fedi:default_currency
3-letter ISO 4217 currency code
When set, all in-app sat amounts will default to showing conversion amounts in this currency (assuming an exchange rate is available). If a user sets a selected currency within the app settings, the user-default will be respected over this one.
Be sure to test that the string provided matches one of the currencies listed in-app to confirm that an exchange rate is available
Structure
3-letter string
"fedi:default_currency": "USD"