Nice! There is already a TUI in gdb albeit not as good looking. For more info, there is a quick talk about it and other niceties that you may not know about: https://www.youtube.com/watch?v=PorfLSr3DDI
A similar project worth mentioning is Voltron, which can decorate your gdb session with accesory windows. (Use tmux for window layout).
No experience with this dashboard but looking forward to trying it.