installation error about faac HOT 6 CLOSED

mkdir: cannot create directory ‘/usr’: Read-only file system

Try again as root.

from faac.

I wrote it here because I need guidance on this matter.
Can you explain in detail what exactly should someone who cannot do this process do?
step by step what should i do

my device is rooted systemless with magisk

You said try again with root.
what does that mean.?, i'm new to this stuff
Thanks in advance to anyone who is interested and responds.

from faac.

I gave root privileges and the result is the same.

If anyone has any advice, I'd be happy to apply it.
I've been trying for a long time and I couldn't make a successful installation.
Thanks

from faac.

so I'm going to ask you something
There are some hurdles for me to create in the com.termux directory.
To overcome this obstacle, I would like to do the following.

I will build to mnt/sdcard and copy the generated files to com.termux > usr.

I need help doing this, the lines specifying the installation path, in which directory it is located.

from faac.

The issue you encounter is very specific to your system and in no way related to faac. I cannot give you tutorials here how to install software on your system, because honestly, I don't know either.

from faac.

I understand it better now, thank you.

from faac.