diff --git a/fluidsim/base/basilisk/__init__.py b/old/basilisk/__init__.py similarity index 100% rename from fluidsim/base/basilisk/__init__.py rename to old/basilisk/__init__.py diff --git a/fluidsim/base/basilisk/operators.py b/old/basilisk/operators.py similarity index 100% rename from fluidsim/base/basilisk/operators.py rename to old/basilisk/operators.py diff --git a/fluidsim/base/basilisk/output/__init__.py b/old/basilisk/output/__init__.py similarity index 100% rename from fluidsim/base/basilisk/output/__init__.py rename to old/basilisk/output/__init__.py diff --git a/fluidsim/base/basilisk/solver.py b/old/basilisk/solver.py similarity index 100% rename from fluidsim/base/basilisk/solver.py rename to old/basilisk/solver.py diff --git a/fluidsim/base/basilisk/state.py b/old/basilisk/state.py similarity index 100% rename from fluidsim/base/basilisk/state.py rename to old/basilisk/state.py diff --git a/fluidsim/base/basilisk/time_stepping.py b/old/basilisk/time_stepping.py similarity index 100% rename from fluidsim/base/basilisk/time_stepping.py rename to old/basilisk/time_stepping.py diff --git a/doc/examples/basilisk/simul_basilisk.py b/old/examples_basilisk/simul_basilisk.py similarity index 100% rename from doc/examples/basilisk/simul_basilisk.py rename to old/examples_basilisk/simul_basilisk.py diff --git a/fluidsim/solvers/ns2d/strat/find_dissipation.py b/scripts/ns2d.strat/find_dissipation.py similarity index 100% rename from fluidsim/solvers/ns2d/strat/find_dissipation.py rename to scripts/ns2d.strat/find_dissipation.py