Have anyone tried to build his own tracker?

[Fafa]

I've been contemplating the idea of constructing my own tracker (exclusively for me) since it could be better adapted to my specific needs and significantly more automated. Moreover, there are many features in existing trackers that I don't utilize, so it seems I don't require an overly complicated solution. I spend a considerable amount on advertising and have a technical team at my disposal. Has anyone attempted this before and can provide some insights about the most significant