Installation woes again

I am trying to install SAC. I have downloaded the most recent snapshot packages. I encountered the following difficulties.

• The tarball is unexpectedly a tarbomb, which was annoying to clean up after (I should probably write a script to do that).
• The install.sh script is not executable and is not an sh script, but a bash script. I was confused when sh install.sh gave me a syntax error. The shebang is #!/usr/bin/env bash, which is correct, so this problem can be fixed by just chmodding file +x.
• The README tells me to pass -s to install.sh, but this option is not accepted. After removing -s, it does run, but it does not install any sac2c binary.
• I remember something about having to pass -- -S to the script to make it produce sac2c symlinks, but when doing so I get this error: /home/coancea/sac/installers/installer-debug.sh: /home/coancea/sac/sac2c-version-manager: /usr/sbin/python3.11: bad interpreter: No such file or directory. The problem here is hardcoding python3.11 specifically. (And also /usr/sbin seems like a strange location.) I changed the shebang to #!/usr/bin/env python3.
• After this, I do have a sac2c on PATH, but running it produces this error:

$ sac2c
ERROR: library 'libsac2c_p.so' not found.
dlopen: /builds/sac-group/build-sac-pkgs/sac2c-build/sac2c-release/src/sac2c-release-build/lib/libsac2c_p.so: cannot open shared object file: No such file or directory

I think I can fiddle with the dynamic linker path to make it pick up libsac2c_p.so (which I guess is somewhere in ~/.local), but it would be nice if the installation instructions could clarify this.