diff --git a/shenvs/anpi.nix b/shenvs/anpi.nix
index b510c40..6925f42 100644
--- a/shenvs/anpi.nix
+++ b/shenvs/anpi.nix
@@ -1,6 +1,7 @@
 pkgs: {
   paths = with pkgs; [
     octave
+    pipenv
     (python39.withPackages ( packages: with packages; [
 	numpy
 	scipy
diff --git a/shenvs/config.nix b/shenvs/config.nix
index 942bea4..442dc80 100644
--- a/shenvs/config.nix
+++ b/shenvs/config.nix
@@ -4,5 +4,6 @@ shenvs: {
     anpi
     jupyter
     mad
+    tcrb
   ];
 }
diff --git a/shenvs/mad.nix b/shenvs/mad.nix
index 2b7db52..a8e25cb 100644
--- a/shenvs/mad.nix
+++ b/shenvs/mad.nix
@@ -1,8 +1,8 @@
 pkgs: {
   paths = with pkgs; [
-    octave
+    pipenv
     (python39.withPackages ( packages: with packages; [
       psycopg2	
-    ] )) 
+    ])) 
   ];
 }