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indicator-systemtray-unity
Indicator Systemtray Unity is an indicator for the Unity panel which shows the system tray.
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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.
There's this, which I have not tested, but it might do the trick. It hasn't been updated in a little over two years.
Only for the later case there may be a sliver of hope in the community-maintained fork of wingpanel-indicator-ayatana (assuming, of course, that this is actually an Ayatana indicator, ie designed for Unity 7+).
NOTE:
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