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selfhosted-music-overview
A table listing software network services which can be hosted on your own servers
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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.
If you are going with Solution 2, may I suggest a combination of Tailscale and Navidrome (https://www.navidrome.org). Tailscale so that you don't have to worry about exposing your network to the internet and Navidrome and it's Apps for streaming.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.