The Thunderbird Appointment UI is very well designed and simple to use. Jack Wallen/ZDNETDo you have a small business that requires appointment booking? If so, you might be interested in knowing that the team behind the Thunderbird email client has created an appointment service aptly named Thunderbird Appointment, and it’s already looking to be something special.I was invited to test the beta version and I’m thoroughly impressed. Thunderbird Appointment is a stand-alone web service that offers the ability to deploy the service on your own LAN via a Docker container. If deploying a service on your own LAN isn’t your cup of tea, the available service will do just fine.Also: 5 nearly hidden Android features you should already be usingWith Thunderbird Appointment, you can plan an event, set your availability, and share with others. You can even connect your Google Calander (selecting a specific calendar to be used for the appointments), book one-off appointments or recurring events, add details to meetings, enable booking confirmation, and confirm each booking that is sent to you via email. Once you’ve accepted an appointment, it is automatically added to your Thunderbird Appointment calendar and the calendar you’ve linked to the service (if applicable).I even tested Thunderbird Appointment by deploying it on a test server within my LAN (using docker-compose) and was impressed with how easy it was to get up and running. Within less than 2 minutes I had my booking service running on my LAN. Also: The 4 best closed-source email clients for LinuxI’ve tested other appointment software (even Google’s take on the service) and found Thunderbird Appointment to stand up with the best of them.As far as settings are concerned, you can configure the following:LanguageThemeTime formatTime ZoneAvailable calendarsAccount informationConnected accounts (on the beta you can connect Mozilla, Google, and Zoom accounts)Once you’ve created your Thunderbird Appointment account (currently, the service is free), you can then set your availability (time and days of the week), add scheduling details — such as calendar, earliest booking, farthest booking, and booking duration), meeting details (video link and notes), and booking settings (quick link and booking confirmation enable/disable). More