I’m planning to build several WiFi connected devices for home automation: an AC remote control and air quality sensors. These devices would send data and be controlled through a local server. I’m considering two approaches: running custom software on a server PC (hardware to be determined) or integrating with Home Assistant’s protocols and purchasing their hardware. Would using Home Assistant be excessive for this use case?


Yes. If there’s another open source project that has the coverage I’m not aware of it.
There is also OpenHAB, but I think Home Assistant is the more mature one of the two.