I feel like there’s more to your question but here goes with the starter answer: install https://github.com/LizardByte/Sunshine on the computer which is running the game and https://github.com/moonlight-stream/moonlight-qt on the machine which will receive the game stream. I have Sunshine installed in a VMware Fusion VM running Windows which I stream to the host Mac since Discord doesn’t let you screenshare VMs with sound otherwise. I have also used Moonlight on my Mac to stream games from a cloud machine on https://airgpu.com but only played with it a tiny bit as a substitute for running my own game streaming machine in AWS or for some games that aren’t on GeForce NOW.