I recently published the first version of my TESmart custom integration .
TESmart makes KVM switches, including rack-mounted HDMI switches (e.g., HSW-1601) that can also be useful for connecting many devices to a TV. These devices can be particularly useful in extensive gaming setups with more inputs required than even high-end receivers support.
The integration allows Home Assistant to control TESmart media switches over TCP via a MediaPlayer
entity.