diff --git a/pyproject.toml b/pyproject.toml
index 3bb7e5b..0853fce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ requires = ["setuptools >= 61.0"]
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "Particle_System_Simulator"
+name = "PSS"
 version = "0.1.0"
 readme = "README.md"
 license = {file = "LICENSE"}
diff --git a/src/Particle_System_Simulator/ExternalForces/LaserBeam.py b/src/PSS/ExternalForces/LaserBeam.py
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/LaserBeam.py
rename to src/PSS/ExternalForces/LaserBeam.py
diff --git a/src/Particle_System_Simulator/ExternalForces/OpticalForceCalculator.py b/src/PSS/ExternalForces/OpticalForceCalculator.py
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/OpticalForceCalculator.py
rename to src/PSS/ExternalForces/OpticalForceCalculator.py
diff --git a/src/Particle_System_Simulator/ExternalForces/__init__.py b/src/PSS/ExternalForces/__init__.py
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/__init__.py
rename to src/PSS/ExternalForces/__init__.py
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_2_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_2_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_2_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_2_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_3_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_3_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_3_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_3_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_4.1_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_4.1_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_4.1_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_4.1_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_4_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_4_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_4_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_4_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_5_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_5_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_5_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_5_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_6.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_6.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_6.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_6.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_7_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_7_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_7_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_7_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_8_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_8_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_8_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_8_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_9_export.csv b/src/PSS/ExternalForces/optical_interpolators/Mark_9_export.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/Mark_9_export.csv
rename to src/PSS/ExternalForces/optical_interpolators/Mark_9_export.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/PhC_Gao_et_al.csv b/src/PSS/ExternalForces/optical_interpolators/PhC_Gao_et_al.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/PhC_Gao_et_al.csv
rename to src/PSS/ExternalForces/optical_interpolators/PhC_Gao_et_al.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/__init__.py b/src/PSS/ExternalForces/optical_interpolators/__init__.py
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/__init__.py
rename to src/PSS/ExternalForces/optical_interpolators/__init__.py
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/dummy.csv b/src/PSS/ExternalForces/optical_interpolators/dummy.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/dummy.csv
rename to src/PSS/ExternalForces/optical_interpolators/dummy.csv
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/interpolators.py b/src/PSS/ExternalForces/optical_interpolators/interpolators.py
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/interpolators.py
rename to src/PSS/ExternalForces/optical_interpolators/interpolators.py
diff --git a/src/Particle_System_Simulator/ExternalForces/optical_interpolators/mark_2.csv b/src/PSS/ExternalForces/optical_interpolators/mark_2.csv
similarity index 100%
rename from src/Particle_System_Simulator/ExternalForces/optical_interpolators/mark_2.csv
rename to src/PSS/ExternalForces/optical_interpolators/mark_2.csv
diff --git a/src/Particle_System_Simulator/Mesh/Mesher.py b/src/PSS/Mesh/Mesher.py
similarity index 100%
rename from src/Particle_System_Simulator/Mesh/Mesher.py
rename to src/PSS/Mesh/Mesher.py
diff --git a/src/Particle_System_Simulator/Mesh/__init__.py b/src/PSS/Mesh/__init__.py
similarity index 100%
rename from src/Particle_System_Simulator/Mesh/__init__.py
rename to src/PSS/Mesh/__init__.py
diff --git a/src/Particle_System_Simulator/Mesh/mesh_functions.py b/src/PSS/Mesh/mesh_functions.py
similarity index 100%
rename from src/Particle_System_Simulator/Mesh/mesh_functions.py
rename to src/PSS/Mesh/mesh_functions.py
diff --git a/src/Particle_System_Simulator/Mesh/mesh_tester.py b/src/PSS/Mesh/mesh_tester.py
similarity index 100%
rename from src/Particle_System_Simulator/Mesh/mesh_tester.py
rename to src/PSS/Mesh/mesh_tester.py
diff --git a/src/Particle_System_Simulator/Sim/__init__.py b/src/PSS/Sim/__init__.py
similarity index 100%
rename from src/Particle_System_Simulator/Sim/__init__.py
rename to src/PSS/Sim/__init__.py
diff --git a/src/Particle_System_Simulator/Sim/simulations.py b/src/PSS/Sim/simulations.py
similarity index 100%
rename from src/Particle_System_Simulator/Sim/simulations.py
rename to src/PSS/Sim/simulations.py
diff --git a/src/Particle_System_Simulator/__init__.py b/src/PSS/__init__.py
similarity index 100%
rename from src/Particle_System_Simulator/__init__.py
rename to src/PSS/__init__.py
diff --git a/src/Particle_System_Simulator/particleSystem/Force.py b/src/PSS/particleSystem/Force.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/Force.py
rename to src/PSS/particleSystem/Force.py
diff --git a/src/Particle_System_Simulator/particleSystem/ImplicitForce.py b/src/PSS/particleSystem/ImplicitForce.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/ImplicitForce.py
rename to src/PSS/particleSystem/ImplicitForce.py
diff --git a/src/Particle_System_Simulator/particleSystem/Particle.py b/src/PSS/particleSystem/Particle.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/Particle.py
rename to src/PSS/particleSystem/Particle.py
diff --git a/src/Particle_System_Simulator/particleSystem/ParticleSystem.py b/src/PSS/particleSystem/ParticleSystem.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/ParticleSystem.py
rename to src/PSS/particleSystem/ParticleSystem.py
diff --git a/src/Particle_System_Simulator/particleSystem/SpringDamper.py b/src/PSS/particleSystem/SpringDamper.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/SpringDamper.py
rename to src/PSS/particleSystem/SpringDamper.py
diff --git a/src/Particle_System_Simulator/particleSystem/SystemObject.py b/src/PSS/particleSystem/SystemObject.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/SystemObject.py
rename to src/PSS/particleSystem/SystemObject.py
diff --git a/src/Particle_System_Simulator/particleSystem/__init__.py b/src/PSS/particleSystem/__init__.py
similarity index 100%
rename from src/Particle_System_Simulator/particleSystem/__init__.py
rename to src/PSS/particleSystem/__init__.py