In my opinion, this isn't a 100% replacement for the functionality offered by Calendly or TidyCal.

For the person making the booking, there's only a name and email address field. With Calendly and TidyCal, I have informative forms that my clients can fill out before booking. I'm missing address details (street, city, postal code, phone number) as well as a subject for the booking, ideally with a predefined selection that the client can choose and above all a text field.

Furthermore, my main Proton email address is displayed below the organizer in the booking field. Since I use my own domain address, which is associated with my practice, I should be able to choose what is displayed, as I don't want my private Proton address to appear there. Ideally, I would prefer that no email address be displayed at all.

Besides a link to the booking page, an embed code for websites would also be great.

It would be nice if these things could be improved.