Is using an Matrix account from matrix.org private and secure enough to talk with my family members and people in general?
Matrix and Simplex is fine but I would recommend Signal for family and friends. Threema is also option but not user friendly for friends and family who wants easy user discovery than sharing userIDs.
I am using https://play.google.com/store/apps/details?id=vopo.easyhomefinanceIt was open source but can't find source now
https://it-notes.dragas.net/2023/09/23/make-your-own-vpn-freebsd-wireguard-ipv6-and-ad-blocking-included/
OpenSUSE MicroOS