I tryed to "recycle" my Apple Cinema Display. which didn't had a Footstand since I got it. Neather had I an appropriate Mac to connect the Display to it. So at first I managed It to get the Display to work with DVI and external Power Source to run it on my normal Windows Computer. ( It's another Project and I will docemnt it if requested)
So i finally created a stand alone Plex Client aka the "AppleTV".
That sounds like a fantastic DIY project! Repurposing an old Apple CinemaHD display into an Apple TV with a Raspberry Pi is both creative and resourceful. Converting the Apple ADC connector to HDMI must have been quite a task, but it's impressive that you were able to make it work. Adding a small sound amplifier and an IR remote sounds like great enhancements to the setup. I'm curious to hear more about your experience with it and the additional details you mentioned. And also i can sharing the URL (https://www.castlemod.com/castle-mod-apk/), it seems to lead to a website related to modding applications, which could be an interesting complement to your DIY tech projects.