Is there anyway I can add a flag when executing to return a signal temp? EG: if I wanted GPU MTR Temp #1 only?

I'm seeing a super weird issue on macbook air m1 and running ./temp_sensor | ./monitor.py in terminal.

Recently I've started noticing skipping when doing cmd-tab - 40-60% of time it would skip to 3rd or 4th element in the list. So started investigating and noticed that my WindowServer is at ~100% all the time. Closing all the apps it didn't improve, but a reboot helped. So after a day or two I again noticed same thing. So yesterday I was just quitting everything and after I ctrl-c-ed temp_sensor, my system got into an unusable state. I was no longer able to switch to any other app from terminal - dock was unresponsive, cmd-tab unresponsive as well. Once I closed the terminal window, I got ball was rolling and re-rolling. As if the ball animation was interrupted and restarted again. So I rebooted forced a power cycle and everything was fine again.

So today same thing - WindowServer 100 CPU, cmd-tab lagging/skipping. So I took a harder look and noticed in activity monitor that temp_sensor was using 3.78G memory, which seemed excessive. So I went into the terminal and pressed ctrl-c. App quite but I was in the same state as yesterday. Couldn't switch from terminal anymore and once I closed it, I got that ball re-rolling and after 10 minutes I gave up and power cycled.

I would expect a sensor monitor not to eat that much ram and not to break WindowServer.

Would it be possible to get some additional instructions on how to compile this project?

gcc temp_sensor.m produces a list of undefined symbols, which I'm guessing means I'm missing a compile-time dependency.

If it isn't obvious, I'm completely new to Objective-C/C++. Thanks!