diff --git a/rpm/nsd-app-wrap.spec b/rpm/nsd-app-wrap.spec
index 1f24225ff7da61788db58f4596d3e040de7c4b86..970d13678909d6b86c37659780907ae90d1ab7b4 100644
--- a/rpm/nsd-app-wrap.spec
+++ b/rpm/nsd-app-wrap.spec
@@ -1,5 +1,5 @@
 Name:           nsd-app-wrap
-Version:        2.14
+Version:        2.15
 Release:        1%{?dist}
 Summary:        Wrapper scripts to launch python applications installed via anaconda
 Vendor:         Peter F. Peterson
diff --git a/src/nexpy b/src/nexpy
new file mode 100644
index 0000000000000000000000000000000000000000..8d8dce959a92305bac25f1578a17401c750f7151
--- /dev/null
+++ b/src/nexpy
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# select the environment to use
+# current default is system version
+PIXI_ENVIRON=nexpy
+if [ -n "$1" ]; then
+  if [ "$1" == "--dev" ]; then
+    PIXI_ENVIRON=nexpy_dev
+    shift # drop this argument
+  elif [ "$1" == "--qa" ]; then
+    PIXI_ENVIRON=nexpy_qa
+    shift # drop this argument
+  fi
+fi
+
+# import library to do the real work
+# shellcheck disable=SC1091
+. "$(dirname "$(realpath "$0")")/nsd-app-wrap.sh" ||
+  . /bin/nsd-app-wrap.sh
+
+# put together arguments - conda_env, application, argv
+args=("${PIXI_ENVIRON}" "nexpy" "$@")
+# launch the tool
+pixi_launch "${args[@]}"