Customized Digital LED Clock Program

I'm currently requiring support with a fascinating project I'm working on. The project involves developing a highly tailored program for an ESP8266 wifi module that will be used in a digital RGB LED clock based on wled. The program will need to offer the following features: - Accurate time display - Alarm setting capacity - Accurate date display - Automatically adjust date and time when connect to wifi - Adjustable brightness control - A talking clock feature that sounds every hour with varying effects, such as a cuckoo voice - Auto-brightness that reacts to room lighting - Glowing of an additional LED for every day(for sunday to saturday block) - Temperature display - Customizable number of LEDs per segment(to be usable for small and big size clock) - The ability to enable and disable all features in the WLED UI Also, a key functionality of the alarm feature in this program should revolve around having a custom sound. Additionally, the auto-brightness feature should be smart enough to adjust itself relative to the room lighting intensity. Freelancers seeking to bid on this project should ideally have experience in ESP8266 programming, digital clock systems, coding for interactive features, light responsive systems, and a formidable understanding of user interface considerations.