Popup example - https://stackblitz.com/edit/popup-appointment-widget-for-web...

Inline example - https://stackblitz.com/edit/inline-appointment-widget-for-we...

Node JS example - https://stackblitz.com/edit/appointment-booking-widget-in-no...

WordPress plugin to embed with shortcode- https://wordpress.org/plugins/dayschedule-appointment-event-...

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[dayschedule url="https://meet.dayschedule.com" type="popup"]

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More customization options: https://dayschedule.com/widget

Let me know if any question or feedback :-)