u/Char-car92

Soon I will be running a Plex media server and potentially a file server for myself from an old laptop. I plan to use Linux Mint and the laptop will be using WiFi. I am looking for an app that can tell me my system resource usage on my phone when I am on another network or far away from that laptop. To summarize:

1. Linux Mint
2. Remotely viewable
3. System resource monitor

I would rather it be a free or open source app but I am also agreeable to a small subscription as I understand remote viewing is not typically going to be free. Thank you all for your help in advance!