Ubuntu 16.04 or later?
Make sure snap support is enabled in your Desktop store.
Install with snapd
Don't have snapd? Get set up for snaps.
Syncthing replaces proprietary sync and cloud services with something open,
trustworthy and decentralized. Your data is your data alone and you deserve
to choose where it is stored, if it is shared with some third party and how
it's transmitted over the Internet.