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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
They give you a secret, in the form of a QR code (for smartphone users) or a text string.
You put the secret string in a password manager that supports one time code generation, like Gopass or KeepassXC.
When you login with your user name and password, the 2FA adds a second step where it asks for a "one time code", which your password manager provides. That code is temporary and only works for a short time frame.
In my case I use Gopass ( https://github.com/gopasspw/gopass ) and it's as simple as adding a field like
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