FOSS contacts storage/sync?
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which apps are seeing your shared storage when you export your contacts?
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I use this and rsync the folder.
https://f-droid.org/packages/com.github.tmo1.sms_ie/ -
Many mail providers give you access to CalDAV + CardDAV which have a wide array of mature technology to sync contacts, calendars, todo lists on basically all platforms. If you move away from Protonmail as primary, you would get access to this normal service as well as being able to use IMAP without paying & using some middleman application just to use email. I do not pay for a lot of services, but I get a lot of value out of keeping email + CalDAV + CardDAV off-premise with the cost of €1 per month.
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any that has got permissions to do so
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same opinion here. but sometimes it's not a choice. Especially on a company phone, but also on a personal one. Don't forget either that not everyone here did/can degoogle their phone.
