Hostbeat is an application that allows you to monitor the status of the computers you want, to know if they are turned on and online. And it will notify you on the phone when the equipment is no longer online.
To monitor the health status of the computer, you need to run a client application that will send pulses to let you know if is still on and online from your application:
Client for Mac and Linux available to download in GitHub here: https://github.com/ruben69695/hostbeat-cli/releases/download/1.0.0/install.sh
Client for Windows available here: https://www.microsoft.com/store/productId/9PPNR91LRTNL
Instructions to install the CLI tool are resumed here: https://github.com/ruben69695/hostbeat-cli/blob/main/README.md