My current prompt looks like:
luke@Lukes-MacBook-Pro ~/Documents/abc %
which uses PROMPT='%n@%m %~ %# ' in my .zshrc file.
My .zshrc also contains cd abc since this is where I would like to start all terminal sessions from.
My aim is to have the prompt start at the abc directory and display subdirectories, always with abc as the starting point:
luke@Lukes-MacBook-Pro abc %
luke@Lukes-MacBook-Pro abc/subdirectory %
ie. remove ~/Documents/ from the prompt.
There are a number of posts which address similar issues, but these focus on shortening the length of prompt by limiting the number of characters (here for example)