What is "make"

[Barkfin]

Instructions say this: "Run make in the program's directory to build the program"

So what does this mean?
I tried chmod +x Makefile and ./Makefile and I get a bunch of nonsense.

./Makefile: line 1: CC: command not found
./Makefile: line 2: CXX: command not found
./Makefile: line 24: warning: here-document at line 4 delimited by end-of-file (wanted `:=')
./Makefile: line 4: shell: command not found
./Makefile: command substitution: line 5: syntax error near unexpected token `)'
./Makefile: command substitution: line 5: `<<) "  CC\ttools/reboot.c"'

Here's the youtube demonstration.

cd ./GPU-Passthrough-Manager
sh ./Build.sh

This doesn't work either!
sh: 0: cannot open ./Build.sh: No such file

So here we go, another "gpu passthrough mystery" that people have to figure out how to make it work, because there's nothing about it that does anything.

[picarica]

make is a linux command, dont chmod anything just type "make" in the directory where you downloaded this repo