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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.
So far the best ones are clrmamepro and romvault, which don't have native mac port, but work well under wine, besides that, you can give a try to JRomManager: https://github.com/optyfr/JRomManager/releases
NOTE:
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Hence, a higher number means a more popular project.