diff --git a/plain2code.py b/plain2code.py
index 4a60558..a4838a5 100644
--- a/plain2code.py
+++ b/plain2code.py
@@ -261,6 +261,12 @@ def run_render():
 def main():  # noqa: C901
     args = parse_arguments()
 
+    # Anchor all relative paths to the plain file's directory.
+    # Resolve filename to absolute first (it may be relative to the original CWD),
+    # then change CWD so that all subsequent relative paths (build_folder, etc.) resolve correctly.
+    args.filename = os.path.abspath(args.filename)
+    os.chdir(os.path.dirname(args.filename))
+
     # Handle early-exit flags before heavy initialization
     if args.dry_run or args.full_plain:
         template_dirs = file_utils.get_template_directories(args.filename, args.template_dir, DEFAULT_TEMPLATE_DIRS)
diff --git a/test_scripts/run_conformance_tests_cypress.sh b/test_scripts/run_conformance_tests_cypress.sh
index a3af59c..d449c85 100755
--- a/test_scripts/run_conformance_tests_cypress.sh
+++ b/test_scripts/run_conformance_tests_cypress.sh
@@ -89,14 +89,12 @@ if [[ "$3" == "-v" || "$3" == "--verbose" ]]; then
   VERBOSE=1
 fi
 
-current_dir=$(pwd)
-
 # Ensures that if any command in the pipeline fails (like npm run build), the entire pipeline
 # will return a non-zero status, allowing the if condition to properly catch failures.
 set -o pipefail
 
 # Define the path to the subfolder
-NODE_SUBFOLDER=node_$1
+NODE_SUBFOLDER=$(dirname "$1")/node_$(basename "$1")
 
 # Running React application
 printf "### Step 1: Starting the React application in folder $NODE_SUBFOLDER...\n"
@@ -121,7 +119,7 @@ else
   mkdir -p $NODE_SUBFOLDER
 fi
 
-cp -R $1/* $NODE_SUBFOLDER
+cp -R "$1"/* $NODE_SUBFOLDER
 
 # Move to the subfolder
 cd "$NODE_SUBFOLDER" 2>/dev/null
@@ -202,11 +200,8 @@ fi
 # Execute all Cypress conformance tests in the build folder
 printf "### Step 2: Running Cypress conformance tests $2...\n"
 
-# Move back to the original directory
-cd $current_dir
-
 # Define the path to the conformance tests subfolder
-NODE_CONFORMANCE_TESTS_SUBFOLDER=node_$2
+NODE_CONFORMANCE_TESTS_SUBFOLDER=$(dirname "$2")/node_$(basename "$2")
 
 if [ "${VERBOSE:-}" -eq 1 ] 2>/dev/null; then
   printf "Preparing conformance tests Node subfolder: $NODE_CONFORMANCE_TESTS_SUBFOLDER\n"
@@ -228,7 +223,7 @@ else
   mkdir -p $NODE_CONFORMANCE_TESTS_SUBFOLDER
 fi
 
-cp -R $2/* $NODE_CONFORMANCE_TESTS_SUBFOLDER
+cp -R "$2"/* $NODE_CONFORMANCE_TESTS_SUBFOLDER
 
 # Move to the subfolder with Cypress tests
 cd "$NODE_CONFORMANCE_TESTS_SUBFOLDER" 2>/dev/null
diff --git a/test_scripts/run_conformance_tests_golang.sh b/test_scripts/run_conformance_tests_golang.sh
index 1832241..7224502 100755
--- a/test_scripts/run_conformance_tests_golang.sh
+++ b/test_scripts/run_conformance_tests_golang.sh
@@ -16,9 +16,7 @@ if [ -z "$2" ]; then
   exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi
 
-current_dir=$(pwd)
-
-GO_BUILD_SUBFOLDER=go_$1
+GO_BUILD_SUBFOLDER=$(dirname "$1")/go_$(basename "$1")
 
 if [ "${VERBOSE:-}" -eq 1 ] 2>/dev/null; then
   printf "Preparing Go build subfolder: $GO_BUILD_SUBFOLDER\n"
@@ -40,7 +38,7 @@ else
   mkdir -p $GO_BUILD_SUBFOLDER
 fi
 
-cp -R $1/* $GO_BUILD_SUBFOLDER
+cp -R "$1"/* $GO_BUILD_SUBFOLDER
 
 # Move to the subfolder
 cd "$GO_BUILD_SUBFOLDER" 2>/dev/null
@@ -53,10 +51,10 @@ fi
 echo "Runinng go get in the build folder..."
 go get
 
-cd "$current_dir/$2" 2>/dev/null
+cd "$2" 2>/dev/null
 
 if [ $? -ne 0 ]; then
-  printf "Error: Conformance tests folder '$current_dir/$2' does not exist.\n"
+  printf "Error: Conformance tests folder '$2' does not exist.\n"
   exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi
 
@@ -69,12 +67,12 @@ else
 fi
 
 # Move back to build directory
-cd "$current_dir/$GO_BUILD_SUBFOLDER" 2>/dev/null
+cd "$GO_BUILD_SUBFOLDER" 2>/dev/null
 
 # Execute Go lang conformance tests
 printf "Running Golang conformance tests...\n\n"
 
-output=$(go run $current_dir/$2/conformance_tests.go 2>&1)
+output=$(go run "$2"/conformance_tests.go 2>&1)
 exit_code=$?
 
 # If there was an error, print the output and exit with the error code
diff --git a/test_scripts/run_conformance_tests_python.sh b/test_scripts/run_conformance_tests_python.sh
index 5c685e1..9876f80 100755
--- a/test_scripts/run_conformance_tests_python.sh
+++ b/test_scripts/run_conformance_tests_python.sh
@@ -26,9 +26,7 @@ else
     exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi
 
-current_dir=$(pwd)
-
-PYTHON_BUILD_SUBFOLDER=python_$1
+PYTHON_BUILD_SUBFOLDER=$(dirname "$1")/python_$(basename "$1")
 
 if [ "${VERBOSE:-}" -eq 1 ] 2>/dev/null; then
   printf "Preparing Python build subfolder: $PYTHON_BUILD_SUBFOLDER\n"
@@ -50,7 +48,7 @@ else
   mkdir -p $PYTHON_BUILD_SUBFOLDER
 fi
 
-cp -R $1/* $PYTHON_BUILD_SUBFOLDER
+cp -R "$1"/* $PYTHON_BUILD_SUBFOLDER
 
 # Move to the subfolder
 cd "$PYTHON_BUILD_SUBFOLDER" 2>/dev/null
@@ -63,7 +61,7 @@ fi
 # Execute all Python conformance tests in the build folder
 printf "Running Python conformance tests...\n\n"
 
-output=$($PYTHON_CMD -m unittest discover -b -s "$current_dir/$2" 2>&1)
+output=$($PYTHON_CMD -m unittest discover -b -s "$2" 2>&1)
 exit_code=$?
 
 # Echo the original output
diff --git a/test_scripts/run_unittests_golang.sh b/test_scripts/run_unittests_golang.sh
index 56da7f1..82b8646 100755
--- a/test_scripts/run_unittests_golang.sh
+++ b/test_scripts/run_unittests_golang.sh
@@ -9,7 +9,7 @@ if [ -z "$1" ]; then
   exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi
 
-GO_BUILD_SUBFOLDER=go_$1
+GO_BUILD_SUBFOLDER=$(dirname "$1")/go_$(basename "$1")
 
 if [ "${VERBOSE:-}" -eq 1 ] 2>/dev/null; then
   printf "Preparing Go build subfolder: $GO_BUILD_SUBFOLDER\n"
@@ -31,7 +31,7 @@ else
   mkdir -p $GO_BUILD_SUBFOLDER
 fi
 
-cp -R $1/* $GO_BUILD_SUBFOLDER
+cp -R "$1"/* $GO_BUILD_SUBFOLDER
 
 # Move to the subfolder
 cd "$GO_BUILD_SUBFOLDER" 2>/dev/null
diff --git a/test_scripts/run_unittests_python.sh b/test_scripts/run_unittests_python.sh
index 56bfc5c..aba175f 100755
--- a/test_scripts/run_unittests_python.sh
+++ b/test_scripts/run_unittests_python.sh
@@ -19,7 +19,7 @@ else
     exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi
 
-PYTHON_BUILD_SUBFOLDER=python_$1
+PYTHON_BUILD_SUBFOLDER=$(dirname "$1")/python_$(basename "$1")
 
 if [ "${VERBOSE:-}" -eq 1 ] 2>/dev/null; then
   printf "Preparing Python build subfolder: $PYTHON_BUILD_SUBFOLDER\n"
@@ -41,7 +41,7 @@ else
   mkdir -p $PYTHON_BUILD_SUBFOLDER
 fi
 
-cp -R $1/* $PYTHON_BUILD_SUBFOLDER
+cp -R "$1"/* $PYTHON_BUILD_SUBFOLDER
 
 # Move to the subfolder
 cd "$PYTHON_BUILD_SUBFOLDER" 2>/dev/null
diff --git a/test_scripts/run_unittests_react.sh b/test_scripts/run_unittests_react.sh
index 514bf15..5360978 100755
--- a/test_scripts/run_unittests_react.sh
+++ b/test_scripts/run_unittests_react.sh
@@ -17,7 +17,7 @@ if [ -z "$1" ]; then
 fi
 
 # Define the path to the subfolder
-NODE_SUBFOLDER=node_$1
+NODE_SUBFOLDER=$(dirname "$1")/node_$(basename "$1")
 
 if [ "${VERBOSE:-}" -eq 1 ] 2>/dev/null; then
   printf "Preparing Node subfolder: $NODE_SUBFOLDER\n"
@@ -39,7 +39,7 @@ else
   mkdir -p $NODE_SUBFOLDER
 fi
 
-cp -R $1/* $NODE_SUBFOLDER
+cp -R "$1"/* $NODE_SUBFOLDER
 
 # Move to the subfolder
 cd "$NODE_SUBFOLDER" 2>/dev/null