I think that the check for "Verifying permission on /home/techdocs" is marginally too strict.
The intention is to create a collaboration directory. The "correct" behavior would be to ensure that users who may create content in the directory create it in such a way that allows other users to collaborate on the files. There is nothing in the exercise saying that this idea is incorrect:
> Create the techdocs collaborative directory under the /home directory. Set the group ownership of the directory to the techdocs group, grant full permissions to user and group, and configure the directory so that only file owners can delete their files.
That said, i learned after repeatedly failing the grading and reading the "solution" that the "solution" is not in alignment with the exercise. The exercise states nothing about restricting access to other users on the system (thus needing the chmod 0770). Additionally, given the stated goal, likely the group sticky bit should be set on /home/techdocs so that when `dev1`, `dev2`, and other users create new files, they have the correct permissions.
