Thanks to programmers of RadarBox24
I discovered the method-2 from Radarbox24’s dump1090-rb, when trying to make Radarbox24’s Non-Configurable dump1090-rb to be Configurable by user.
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Converting Non-Configurable, Non-Controable dump1090-rb Into Fully User-Configurable, Systemd-Controlled App
Default settings of dump1090-rb
The default settings of dump1090-rb are NOT adjustable by user
The default settings are hard-coded in rbfeeder software, and passed on to dump1090-rb when it is started by rbfeeder.
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