on-screen tally software for use with products like ProPresenter or ProVideoServer, enabling the operator to know when their source is visible on-air in a TSL 3.1 protocol environment, like a Ross Carbonite switcher. It also supports other protocols like Blackmagic's ATEM switcher, Roland Smart Tally, OBS Studio, and Bitfocus Companion.
I may add them in the future; in the meantime, you can view screenshots and more information about the project here: https://techministry.blog/?s=protally
It would be great to see some screenshots in the readme / wiki.