diff --git a/.gitignore b/.gitignore
index 6052e5a..70c17b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,8 +2,5 @@
 /@fvdycore
 /fvdycore
 /fvdycore@
-/@gtFV3
-/gtFV3
-/gtFV3@
 __pycache__
 /python/@pyFV3
\ No newline at end of file
diff --git a/python/README.md b/python/README.md
index efef7db..7996039 100644
--- a/python/README.md
+++ b/python/README.md
@@ -23,6 +23,7 @@ The configuration of the dycore is passed via the `FV_Flags` structure/user type
 Input control to pyFV3 via environement variables
 
 - `GEOS_PYFV3_BACKEND`: `NDSL` backend for `pyFV3`, defaults to `gt:gpu`
+- `GEOS_PYFV3_SINGLE_RANK_OVERRIDE`: boolean to control a single rank override for debug
 
 ## Contact
 
diff --git a/python/interface/pyFV3_interface.py b/python/interface/pyFV3_interface.py
index ff82584..b22c3fc 100644
--- a/python/interface/pyFV3_interface.py
+++ b/python/interface/pyFV3_interface.py
@@ -82,7 +82,7 @@ def __init__(
     def finalize(self):
         import json
 
-        with open("gtfv3_timings.json", "w") as f:
+        with open("pyfv3_timings.json", "w") as f:
             json.dump(self._timings, f, indent=4)
 
     def __call__(
@@ -149,7 +149,7 @@ def __call__(
                 diss_est,
             )
 
-        # Run gtFV3
+        # Run pyFV3
         with TimedCUDAProfiler("Numerics", self._timings):
             state_out, self._timings = self.dycore(
                 self._timings,
@@ -214,7 +214,8 @@ def __call__(
 
 # Below is the entry point to the interface
 # ToDo: we should build the object outside of the sim loop from fortran
-# potentially by writing a geos_gtfv3_setup_interface and caching the ptr Fortran side
+# potentially by writing a pyfv3_interface_setup and caching the ptr Fortran side
+# or by having a central python interpreter object handled by CFFI to register against
 WRAPPER = None
 
 
diff --git a/python/interface/pyFV3_wrapper.py b/python/interface/pyFV3_wrapper.py
index 5d295fb..1501763 100644
--- a/python/interface/pyFV3_wrapper.py
+++ b/python/interface/pyFV3_wrapper.py
@@ -119,9 +119,9 @@ def __init__(
             )
 
         # Look for an override to run on a single node
-        gtfv3_single_rank_override = int(os.getenv("GTFV3_SINGLE_RANK_OVERRIDE", -1))
-        if gtfv3_single_rank_override >= 0:
-            comm = NullComm(gtfv3_single_rank_override, 6, 42)
+        single_rank_override = int(os.getenv("GEOS_PYFV3_SINGLE_RANK_OVERRIDE", -1))
+        if single_rank_override >= 0:
+            comm = NullComm(single_rank_override, 6, 42)
 
         # Make a custom performance collector for the GEOS wrapper
         self.perf_collector = PerformanceCollector("GEOS wrapper", comm)