diff --git a/cfg/gaston/python.profile b/cfg/gaston/python.profile
new file mode 100644
index 0000000000000000000000000000000000000000..e191c0280d315ed2c6f372ac0baafa131223e715
--- /dev/null
+++ b/cfg/gaston/python.profile
@@ -0,0 +1,3 @@
+add2env PATH "/opt/python/bin" front
+# added in ld.conf.d (else no way to have it in batch/at)
+#add2env LD_LIBRARY_PATH "/opt/python/lib" front
diff --git a/cfg/gaston/vtk.profile b/cfg/gaston/vtk.profile
new file mode 100644
index 0000000000000000000000000000000000000000..2da2d227399c70385e297f1ddad80d691b6ed0bc
--- /dev/null
+++ b/cfg/gaston/vtk.profile
@@ -0,0 +1,3 @@
+add2env LD_LIBRARY_PATH "/opt/vtk/lib/" front 
+add2env LIB "/opt/vtk/lib/cmake/vtk-7.1" front
+add2env PYTHONPATH "/opt/vtk/lib/python3.7/site-packages" front