lucascs@proton.me Lucas C.S. Official prebuilt Linux desktop client for Proton Mail (beta). Installs the upstream RPM payload into /opt/proton-mail and exposes a launcher via /usr/bin/proton-mail. Proton Mail is an end-to-end encrypted email service operated by Proton AG. Pull in libpulse (or apulse) for notification sounds ProtonMail/inbox-desktop https://github.com/ProtonMail/inbox-desktop/issues