diff --git a/benchmarks/CMakeLists.txt b/old_cmake/benchmark.txt
similarity index 92%
rename from benchmarks/CMakeLists.txt
rename to old_cmake/benchmark.txt
index 2a4e0342..350482ab 100644
--- a/benchmarks/CMakeLists.txt
+++ b/old_cmake/benchmark.txt
@@ -1,5 +1,18 @@
 project(sfizz)
 
+include(FetchContent)
+FetchContent_Declare(
+  benchmark
+  GIT_REPOSITORY https://github.com/google/benchmark.git
+  GIT_TAG        v1.5.0
+)
+
+FetchContent_GetProperties(benchmark)
+if(NOT benchmark_POPULATED)
+  FetchContent_Populate(benchmark)
+  add_subdirectory(${benchmark_SOURCE_DIR} ${benchmark_BINARY_DIR})
+endif()
+
 # Check SIMD
 include(CheckIncludeFiles)
 CHECK_INCLUDE_FILES(x86intrin.h HAVE_X86INTRIN_H)
diff --git a/clients/CMakeLists.txt b/old_cmake/client.txt
similarity index 100%
rename from clients/CMakeLists.txt
rename to old_cmake/client.txt
diff --git a/lv2/CMakeLists.txt b/old_cmake/lv2.txt
similarity index 100%
rename from lv2/CMakeLists.txt
rename to old_cmake/lv2.txt
diff --git a/CMakeLists.txt b/old_cmake/root.txt
similarity index 100%
rename from CMakeLists.txt
rename to old_cmake/root.txt
diff --git a/src/CMakeLists.txt b/old_cmake/sfizz_source.txt
similarity index 100%
rename from src/CMakeLists.txt
rename to old_cmake/sfizz_source.txt
diff --git a/tests/CMakeLists.txt b/old_cmake/tests.txt
similarity index 100%
rename from tests/CMakeLists.txt
rename to old_cmake/tests.txt