diff --git a/flake.nix b/flake.nix
index ac89180..18c7bec2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -113,6 +113,19 @@
         propagatedBuildInputs = [ pyqtgraph pkgs.python3Packages.numpy ];
       };
 
+      pytec-dev-wrappers = pkgs.runCommandNoCC "pytec-dev-wrappers" { } ''
+        mkdir -p $out/bin
+        for program in ${self}/pytec/*.py; do
+          if [ -x $program ]; then
+            progname=`basename -s .py $program`
+            outname=$out/bin/$progname
+            echo "#!${pkgs.bash}/bin/bash" >> $outname
+            echo "exec python3 -m pytec.$progname \"\$@\"" >> $outname
+            chmod 755 $outname
+          fi
+        done
+      '';
+
       thermostat_gui = pkgs.python3Packages.buildPythonPackage {
         pname = "thermostat_gui";
         version = "0.0.0";
@@ -149,7 +162,8 @@
       devShell.x86_64-linux = pkgs.mkShell {
         name = "thermostat-dev-shell";
         buildInputs = with pkgs;
-          [ rust openocd dfu-util ] ++ (with python3Packages; [
+          [ rust openocd dfu-util pytec-dev-wrappers ]
+          ++ (with python3Packages; [
             numpy
             matplotlib
             pyqtgraph
@@ -159,9 +173,9 @@
             pglive
             qtextras
           ]);
-          shellHook = ''
-            export PYTHONPATH=`pwd`/pytec:$PYTHONPATH
-          '';
+        shellHook = ''
+          export PYTHONPATH=`pwd`/pytec:$PYTHONPATH
+        '';
       };
       defaultPackage.x86_64-linux = thermostat;
     };
diff --git a/pytec/autotune.py b/pytec/autotune.py
old mode 100644
new mode 100755
diff --git a/pytec/plot.py b/pytec/plot.py
old mode 100644
new mode 100755
diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
old mode 100644
new mode 100755