Install Syncthing on Ubuntu 24.04

# Add the release PGP keys:
sudo mkdir -p /etc/apt/keyrings
sudo curl -L -o /etc/apt/keyrings/syncthing-archive-keyring.gpg https://syncthing.net/release-key.gpg

# Add the "stable" channel to your APT sources:
echo "deb [signed-by=/etc/apt/keyrings/syncthing-archive-keyring.gpg] https://apt.syncthing.net/ syncthing stable" | sudo tee /etc/apt/sources.list.d/syncthing.list

# Update and install syncthing:
sudo apt-get update
sudo apt-get install syncthing

Syncthing can be run as a service so that it starts automatically on boot.

Enable the Syncthing service : By default, Syncthing installs a systemd service for the user syncthing. You can enable it to start on boot.
```
sudo systemctl enable syncthing@<username>.service
```
Replace <username> with the username of the user who will run Syncthing. For example, if your username is ubuntu, the command would be:
```
sudo systemctl enable syncthing@ubuntu.service
```
Start the Syncthing service : Once enabled, start the Syncthing service.
```
sudo systemctl start syncthing@<username>.service
```

By default, Syncthing runs on localhost and listens on port 8384.

References
https://apt.syncthing.net/

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