Anyone building their own harness?

A month ago I found Pi and then found Pi-Web. Since then I have been building on top of it and now I have my own harness that works much better than any of the harnesses I have used. I copied the look of claude.ai so its clean, minimal and functional. I just cant get myself to work inside a terminal. Anyone else building their own? I am curious. Would love to share ideas to improve on each other's builds. In case anyone asks: I am not making my harness public, its highly personalised to my workflow just wan