Install the snap you created earlier:
sudo snap install --dangerous mysnap_latest_amd64.snap
List your installed snaps to confirm that it is installed:
You can now run your application from this shell environment. Type its name and hit return.
If your application fails to launch or an error occurs, consult the contents of
/var/log/syslog for a possible explanation.
If no explanation can be found, ask for assistance on the Snapcraft Forum. Be sure to include any relevant details, such as the contents of log files and any error messages printed on the terminal.
Congratulations, you have a working snap. Continue on to learn how to apply the right security model to your application and ready it for publication in the Snap Store.