Every time I start Signal (installed via Aurorastore) I can see with crest, that there is another process “org.thoughtcrime.securesms” (220 MB). It is consuming about 4% of memory and can’t be killed in crest.
Could it be configured, that on starting Signal, that this process doesn’t start, too?
org.thoughtcrime.securesms is Signal, it is the full name the developers named the application.
Blame on me, I didn’t see it in a too short net search 
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A nod to George Orwell’s 1984.