Adding Main Area widget when Lab reloads

JupyterLab extensions
1

Hi all, I’m trying to add a main area widget which should open whenever JupyterLab reloads:

export const ExtensionName: JupyterFrontEndPlugin<void> = {
    id: extensionID,
    autoStart: true,
    activate: (app: JupyterFrontEnd) => {
        app.commands.addCommand(COMMAND, {
            execute: () => {
                const content = new MyComponent();
                const widget = new MainAreaWidget({content});
                widget.title.label = someLabel;
                app.shell.add(widget, 'main');
                app.shell.activateById(widget.id);
            }
        });
        app.restored.then(async () => {
            app.commands.execute(COMMAND);
        });
    }
};

This works fine when there are no previous notebooks open.
But if a previous notebook is open, lab opens the widget after reloading and navigates back to the previously open notebook in a second or so. I was able to overcome this by setting a timeout before app.commands.execute(COMMAND);, but I’m looking for a better solution to prevent the tab-switching between the widget and the previously open file.