diff --git a/.codespellrc b/.codespellrc
new file mode 100644
index 00000000..f199ae70
--- /dev/null
+++ b/.codespellrc
@@ -0,0 +1,5 @@
+[codespell]
+builtin = clear,rare,en-GB_to_en-US,names,informal,code
+check-hidden =
+skip = ./.git,./out/*,./.direnv/*,./cmake-build-*,./build/*,./prefix/*,./conan/*,./stagedir/*,*.log,.*.swp,*~,*.bak
+quiet-level = 2
diff --git a/.envrc b/.envrc
new file mode 100644
index 00000000..5a6c9fb7
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,18 @@
+# Define environment in this dir only with direnv.
+# On first usage enter: direnv allow
+# man direnv for more infos
+#
+# https://direnv.net
+#
+# see too https://cmake.org/cmake/help/latest/manual/cmake-env-variables.7.html
+export CMAKE_PREFIX_PATH=${PWD}/out/install
+export CMAKE_EXPORT_COMPILE_COMMANDS=YES
+export CTEST_OUTPUT_ON_FAILURE=YES
+
+export CPM_USE_LOCAL_PACKAGES=NO
+export CPM_SOURCE_CACHE=${PWD}/.cache/CPM
+
+export LD_LIBRARY_PATH=${CMAKE_PREFIX_PATH}/lib
+export BUILD_DIR=${PWD}/out/build
+
+layout python3
diff --git a/.gitignore b/.gitignore
index a3f1df04..19ce3137 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ CMakeUserPresets.json
 # IDE files
 .vs/
 .idea/
+.direnv/
 .vscode/
 !.vscode/settings.json
 !.vscode/tasks.json
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..b4564962
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,14 @@
+# =============================================================================
+# PYTHON PACKAGES (PIP)
+# =============================================================================
+# USE (python3): pip3 install -U -r <THIS_FILE_NAME>
+# =============================================================================
+
+codespell>=2.2.5
+builddriver>=0.9.0
+bumpversion>=0.6.0
+cmake-format>=0.6.13
+cmake>=3.27
+gcovr>=5.2
+ninja>=1.11
+yamllint>=1.26