diff --git a/README.md b/README.md
index d5b0ddd..7f7e065 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,10 @@ Once you have downloaded CoppeliaSim, add the following to your *~/.bashrc* / *~
 ```bash
 export COPPELIASIM_ROOT=EDIT/ME/PATH/TO/COPPELIASIM/INSTALL/DIR
 ```
+Note for mac, this is usually:
+```bash
+export COPPELIASIM_ROOT=/Applications/coppeliaSim.app/Contents/MacOS
+```
 
 Install PyRep:
 
diff --git a/pyrep/backend/lib.py b/pyrep/backend/lib.py
index 51352b7..fcf8547 100644
--- a/pyrep/backend/lib.py
+++ b/pyrep/backend/lib.py
@@ -24,13 +24,12 @@
 coppeliasim_library = ""
 plat = platform.system()
 if plat == "Windows":
-    raise NotImplementedError()
+    raise NotImplementedError("Windows not tested yet.")
     # coppeliasim_library /= f'{defaultLibNameBase}.dll'
 elif plat == "Linux":
     coppeliasim_library = os.path.join(coppeliasim_root, "libcoppeliaSim.so")
 elif plat == "Darwin":
-    raise NotImplementedError()
-    # coppeliasim_library /= f'../MacOS/lib{defaultLibNameBase}.dylib'
+    coppeliasim_library = os.path.join(coppeliasim_root, "libcoppeliaSim.dylib")
 if not os.path.isfile(coppeliasim_library):
     raise PyRepError(
         "COPPELIASIM_ROOT was not a correct path. " "See installation instructions"
diff --git a/setup.py b/setup.py
index 9024479..93b6d50 100644
--- a/setup.py
+++ b/setup.py
@@ -18,21 +18,6 @@ def get_version(rel_path):
         raise RuntimeError("Unable to find version string.")
 
 
-# Temp fix for CoppeliaSim 4.1
-if "COPPELIASIM_ROOT" not in os.environ:
-    raise RuntimeError("COPPELIASIM_ROOT not defined.")
-
-usrset_file = os.path.join(os.environ["COPPELIASIM_ROOT"], "system", "usrset.txt")
-usrset = ""
-if os.path.isfile(usrset_file):
-    with open(usrset_file, "r") as f:
-        usrset = f.read()
-
-if "allowOldEduRelease" not in usrset:
-    with open(usrset_file, "a+") as f:
-        f.write("\nallowOldEduRelease=7501\n")
-
-
 core_requirements = [
     "numpy",
     "cbor",