Desktop tracker need to develop

We need one tracker software (hybrid it should work in windows, linux, and mac) with following actions 1) Capture Windows Screenshot , with Mouse click counts, and keyboard key type count and update records on live server using api. We need to make sure, if no internet then it keep save in local and as soon internet come, it send data 1 by 1. 2) Need user log activity, how much time spend on which application (chrome, notepad, etc) 3) Website Blocking option needed Prefer in C++ but open if you can provide solution in diff lang, and that meet our requirement Delivering 2 different outputs-> A) Manual On/Off B) Autostater with Hide application from Task Manager, option I need complete source code along with proper instruction to generate exe file. All the api needed will be provided by me We will be paying based on milestone completed only, no upfront