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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.
But you can self-host the payment platform though, if I understand correctly. That is what https://github.com/abishekmuthian/open-payment-host does (only for digital products though), the dev shows a quick video on https://www.youtube.com/watch?v=vQcLr-NgqIU
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