Having understood your project requirements, I can develop a software solution that will notify you whenever the required text appears on the screen. Considering the approach, I propose to develop a custom desktop application, that will continuously monitor the screen and scan for the specific text that you require.
To ensure optimal performance, we can use the OCR (Optical Character Recognition) technology to allow the application to "read" the text on the screen. I can develop the application using C# or Python programming languages, and we can discuss which one to use, depending on your preferences.
Before providing you with an accurate quote and timeline, I have some technical questions. Firstly, please share the details about the operating system on which you want to use the software. Secondly, will you require any additional features other than the mentioned functionality?
Looking forward to hearing from you and bringing your vision to life with my technical expertise.