G6K Sage Installation Ambiguity

[MurageKibicho]

How do you "Add the path to sage environment" as mentioned in this issue?
I cloned https://github.com/fplll/g6k
Then I ran sage --python setup.py build_ext --inplace

I think it built g6k correctly because I got

copying build/lib.linux-x86_64-cpython-38/g6k/siever.cpython-38-x86_64-linux-gnu.so -> g6k
copying build/lib.linux-x86_64-cpython-38/g6k/siever_params.cpython-38-x86_64-linux-gnu.so -> g6k

Now I'm stuck at "add the path to sage environment". I don't know what this means. What do I do next with the .so files?

[WvanWoerden]

I think one should be able to add the installation directory to the python/sage module path using:

import sys
sys.path.insert(0,'/path/to/dir')