diff --git a/COPYRIGHT b/COPYRIGHT
new file mode 100644
index 0000000..8e63434
--- /dev/null
+++ b/COPYRIGHT
@@ -0,0 +1,5 @@
+Copyright 2008-2025 Association of Universities for Research in Astronomy
+Copyright 2015-2025 The Trustees of Princeton University
+Copyright 2015-2025 University of Washington
+Copyright 2017-2025 The Board of Trustees of the Leland Stanford Junior University, through SLAC National Accelerator Laboratory
+Copyright 2025 University of Illinois Board of Trustees
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..83e6ce3
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,28 @@
+BSD 3-Clause License
+
+See the COPYRIGHT file for copyright information.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.rst b/README.rst
new file mode 100644
index 0000000..ccd4912
--- /dev/null
+++ b/README.rst
@@ -0,0 +1,17 @@
+==========
+lsst-ctrl-execute
+==========
+
+.. image:: https://img.shields.io/pypi/v/lsst-ctrl-execute.svg
+    :target: https://pypi.org/project/lsst-ctrl-execute/
+.. image:: https://codecov.io/gh/lsst/ctrl_execute/branch/main/graph/badge.svg?token=TUaqTDjdIZ
+    :target: https://codecov.io/gh/lsst/ctrl_execute
+
+Workflow Management System execution functions from Rubin Observatory Data Management for the `Legacy Survey of Space and Time (LSST). <https://www.lsst.org>`_.
+
+PyPI: `lsst-ctrl-execute <https://pypi.org/project/lsst-ctrl-execute/>`_
+
+License
+-------
+
+See LICENSE and COPYRIGHT files.
diff --git a/python/lsst/ctrl/execute/allocator.py b/python/lsst/ctrl/execute/allocator.py
index f2d8918..71eb7af 100644
--- a/python/lsst/ctrl/execute/allocator.py
+++ b/python/lsst/ctrl/execute/allocator.py
@@ -78,7 +78,7 @@ def __init__(
         self.platform = platform
 
         # Look up the user's name and home and scratch directory in the
-        # $HOME/.lsst/condor-info.py file
+        # $HOME/.lsst/condor-info.py file or in the environment.
         user_name = None
         user_home = None
         user_scratch = None
@@ -87,6 +87,10 @@ def __init__(
                 user_name = condorInfoConfig.platform[name].user.name
                 user_home = condorInfoConfig.platform[name].user.home
                 user_scratch = condorInfoConfig.platform[name].user.scratch
+                if user_name is None and "USER" in os.environ:
+                    user_name = os.environ["USER"]
+                if user_home is None and "HOME" in os.environ:
+                    user_home = os.environ["HOME"]
                 if user_scratch is None and "SCRATCH" in os.environ:
                     user_scratch = os.environ["SCRATCH"]
         if user_name is None:
diff --git a/python/lsst/ctrl/execute/allocatorParser.py b/python/lsst/ctrl/execute/allocatorParser.py
index fd38d6f..d759e38 100644
--- a/python/lsst/ctrl/execute/allocatorParser.py
+++ b/python/lsst/ctrl/execute/allocatorParser.py
@@ -199,6 +199,13 @@ def parseArgs(self, basename) -> argparse.Namespace:
             help="configure to use dynamic/partitionable slot; legacy option: this is always enabled now",
         )
 
+        parser.add_argument(
+            "--constraint",
+            action="append",
+            dest="constraint",
+            type=str,
+            help="additional contraint predicate to use with htcondor idle job queries",
+        )
         self.args = parser.parse_args()
 
         return self.args
diff --git a/python/lsst/ctrl/execute/slurmPlugin.py b/python/lsst/ctrl/execute/slurmPlugin.py
index 474210d..d972bd5 100644
--- a/python/lsst/ctrl/execute/slurmPlugin.py
+++ b/python/lsst/ctrl/execute/slurmPlugin.py
@@ -309,6 +309,12 @@ def glideinsFromJobPressure(self):
         # The constraint determines that the jobs to be returned belong to
         # the current user (Owner) and are Idle vanilla universe jobs.
         full_constraint = f"{owner} && {jstat} && {juniv}"
+        # The constraint may be extended with additional arbitrary predicates
+        # if these have been provided to the allocator.
+        if self.opts.constraint:
+            full_constraint += " && "
+            full_constraint += " && ".join(self.opts.constraint)
+
         _LOG.info("Auto: Query for htcondor jobs.")
         _LOG.debug("full_constraint %s", full_constraint)
         try: