Autostart electron application on linux Ubuntu

Navigate to autostart

$ cd /etc/xdg/autostart

Create new file

$ sudo nano electronapp.desktop

Fill this text

[Desktop Entry]
Name=Electron
Exec=npm start --prefix /home/ady/electronapp
Terminal=false
Type=Application

Or with nvm

[Desktop Entry]
Name=Electron
Exec=bash -c "source $HOME/.nvm/nvm.sh && npm start --prefix /home/pi/stressing"
Terminal=false
Type=Application

Don't forget to change name and application directory