diff --git a/.rhiza/make.d/03-marimo.mk b/.rhiza/make.d/03-marimo.mk
index 25975735..6bce2f07 100644
--- a/.rhiza/make.d/03-marimo.mk
+++ b/.rhiza/make.d/03-marimo.mk
@@ -1,6 +1,12 @@
 ## Makefile.marimo - Marimo notebook targets
 # This file is included by the main Makefile
 
+# Add MARIMO_FOLDER to deptry configuration if it exists
+ifneq ($(wildcard $(MARIMO_FOLDER)),)
+DEPTRY_FOLDERS += $(MARIMO_FOLDER)
+DEPTRY_IGNORE += --ignore DEP004
+endif
+
 # Declare phony targets (they don't produce files)
 .PHONY: marimo-validate marimo marimushka
 
diff --git a/.rhiza/make.d/src.mk b/.rhiza/make.d/src.mk
new file mode 100644
index 00000000..93f9e752
--- /dev/null
+++ b/.rhiza/make.d/src.mk
@@ -0,0 +1,15 @@
+## Makefile.src - Source folder configuration
+# This file is included by the main Makefile
+
+# Add SOURCE_FOLDER to deptry configuration if it exists
+ifneq ($(wildcard $(SOURCE_FOLDER)),)
+DEPTRY_FOLDERS += $(SOURCE_FOLDER)
+endif
+
+##@ Quality and Formatting
+deptry: install-uv ## Run deptry
+	@printf "${BLUE}[INFO] DEPTRY_FOLDERS: ${DEPTRY_FOLDERS}${RESET}\n"
+	@if [ -n "$(strip ${DEPTRY_FOLDERS})" ]; then \
+		printf "${BLUE}[INFO] Running: $(UVX_BIN) -p ${PYTHON_VERSION} deptry ${DEPTRY_FOLDERS} ${DEPTRY_IGNORE}${RESET}\n"; \
+		$(UVX_BIN) -p ${PYTHON_VERSION} deptry ${DEPTRY_FOLDERS} ${DEPTRY_IGNORE}; \
+	fi
diff --git a/.rhiza/rhiza.mk b/.rhiza/rhiza.mk
index 12485d88..415b130e 100644
--- a/.rhiza/rhiza.mk
+++ b/.rhiza/rhiza.mk
@@ -230,19 +230,6 @@ clean: ## Clean project artifacts and stale local branches
 	@git branch -vv | awk '/: gone]/{print $$1}' | xargs -r git branch -D
 
 ##@ Quality and Formatting
-deptry: install-uv ## Run deptry
-	@if [ -d ${SOURCE_FOLDER} ]; then \
-		$(UVX_BIN) -p ${PYTHON_VERSION} deptry ${SOURCE_FOLDER}; \
-	fi
-
-	@if [ -d ${MARIMO_FOLDER} ]; then \
-		if [ -d ${SOURCE_FOLDER} ]; then \
-			$(UVX_BIN) -p ${PYTHON_VERSION} deptry ${MARIMO_FOLDER} ${SOURCE_FOLDER} --ignore DEP004; \
-		else \
-		  	$(UVX_BIN) -p ${PYTHON_VERSION} deptry ${MARIMO_FOLDER} --ignore DEP004; \
-		fi \
-	fi
-
 fmt: install-uv ## check the pre-commit hooks and the linting
 	@${UVX_BIN} -p ${PYTHON_VERSION} pre-commit run --all-files
 
diff --git a/tests/test_rhiza/test_makefile.py b/tests/test_rhiza/test_makefile.py
index e782ca45..0c408242 100644
--- a/tests/test_rhiza/test_makefile.py
+++ b/tests/test_rhiza/test_makefile.py
@@ -32,6 +32,7 @@
     ".rhiza/make.d/03-marimo.mk",
     ".rhiza/make.d/04-presentation.mk",
     ".rhiza/make.d/05-github.mk",
+    ".rhiza/make.d/src.mk",
 ]