diff --git a/CMakeLists.txt b/CMakeLists.txt
index a0face6..5077f46 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -119,6 +119,11 @@ if(ARTEMIS_ENABLE_ASAN)
   add_link_options(-fsanitize=address -fsanitize=undefined)
 endif()
 
+if(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+  # silence sprintf warnings on mac
+  add_compile_options(-Wno-deprecated-declarations)
+endif()
+
 # NOTE(@jonahm): For some reason, order still matters for including
 # parthenon and singularity. Likely has to do with project
 # includes other than Kokkos. MPI and OpenMP likely culprits.
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 95133ac..5c602e5 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -144,8 +144,15 @@ if (CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
    message(STATUS "Standalone mode. Adding artemis executable")
    add_executable(artemis main.cpp)
    target_link_libraries(artemis PRIVATE artemislib)
-   add_custom_command(TARGET artemis POST_BUILD
-                      COMMAND ${CMAKE_COMMAND} -E copy
-                              ${CMAKE_BINARY_DIR}/rebound/librebound.so
-                              $<TARGET_FILE_DIR:artemis>)
+
+   # Bake in rpath to rebound on mac
+   if(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+    set_target_properties(artemis PROPERTIES
+      BUILD_RPATH "${CMAKE_BINARY_DIR}/rebound"
+    )
+    add_custom_command(TARGET artemis POST_BUILD
+      COMMAND install_name_tool -add_rpath @executable_path/../rebound $<TARGET_FILE:artemis>
+      COMMAND install_name_tool -change librebound.so @rpath/librebound.so $<TARGET_FILE:artemis>
+    )
+   endif()
 endif()
diff --git a/tst/run_tests.py b/tst/run_tests.py
index 5ff0866..fddb8ca 100755
--- a/tst/run_tests.py
+++ b/tst/run_tests.py
@@ -157,10 +157,6 @@ def main(**kwargs):
 
         # Build working directory and copy librebound.so into working directory
         os.makedirs(artemis.get_outputs_dir(), exist_ok=True)
-        reb_path = os.path.join(artemis.get_exe_dir(), "librebound.so")
-        if not os.path.exists(reb_path):
-            raise TestError(f'librebound.so not found at "{reb_path}"!')
-        shutil.copy(reb_path, artemis.get_outputs_dir())
 
         # Run each test
         for name in test_names:
@@ -294,7 +290,6 @@ def set_globals(args):
     if exe_path is not None:
         adir = os.path.join(artemis.get_artemis_dir(), "tst")
         out_dir = os.path.join(adir, "testing") if out_dir is None else out_dir
-        reb_path = os.path.join(os.path.dirname(exe_path), "librebound.so")
 
         if use_cwd:
             raise TestError("--cwd and --exe=PATH cannot be passed together!")
@@ -302,9 +297,6 @@ def set_globals(args):
         if not (os.path.exists(exe_path) and os.access(exe_path, os.X_OK)):
             raise TestError(f'Provided exe "{exe_path}" not found or cannot be run!')
 
-        if not os.path.exists(reb_path):
-            raise TestError(f'librebound.so not found at "{reb_path}"!')
-
         abs_out_dir = os.path.abspath(out_dir)
         abs_exe_dir = os.path.abspath(os.path.dirname(exe_path))
         artemis.set_paths(abs_exe_dir, abs_out_dir)
@@ -318,10 +310,6 @@ def set_globals(args):
             if os.path.isfile(lpath_exe) and os.access(lpath_exe, os.X_OK):
                 exe_path = lpath_exe
                 out_dir = os.path.join(cwd, "testing") if out_dir is None else out_dir
-                reb_path = os.path.join(os.path.dirname(exe_path), "librebound.so")
-
-                if not os.path.exists(reb_path):
-                    raise TestError(f'librebound.so not found at "{reb_path}"!')
 
                 abs_out_dir = os.path.abspath(out_dir)
                 abs_exe_dir = os.path.abspath(os.path.dirname(exe_path))
@@ -331,14 +319,10 @@ def set_globals(args):
                 # Check if we are one level up from the executable
                 exe_path = read_cmakecache(lpath_cache)
                 out_dir = os.path.join(cwd, "testing") if out_dir is None else out_dir
-                reb_path = os.path.join(os.path.dirname(exe_path), "librebound.so")
 
                 if not (os.path.exists(exe_path) and os.access(exe_path, os.X_OK)):
                     raise TestError(f'No exe in "{exe_path}" or cannot be run!')
 
-                if not os.path.exists(reb_path):
-                    raise TestError(f'librebound.so not found at "{reb_path}"!')
-
                 abs_out_dir = os.path.abspath(out_dir)
                 abs_exe_dir = os.path.abspath(os.path.dirname(exe_path))
                 artemis.set_paths(abs_exe_dir, abs_out_dir)