debian

https://apt.syncthing.net/

sudo curl -s -o /usr/share/keyrings/syncthing-archive-keyring.gpg https://syncthing.net/release-key.gpg
echo "deb [signed-by=/usr/share/keyrings/syncthing-archive-keyring.gpg] https://apt.syncthing.net/ syncthing stable" | sudo tee /etc/apt/sources.list.d/syncthing.list
printf "Package: *\nPin: origin apt.syncthing.net\nPin-Priority: 990\n" | sudo tee /etc/apt/preferences.d/syncthing

sudo apt-get update
sudo apt-get install syncthing

lineage os

syncthing-fork

ssh tunneling (to config remote syncthing)

ssh -L 9999:localhost:8384 machine