try removing commands:

Author: k0ekk0ek

.readthedocs.yaml

@@ -13,16 +13,16 @@ build:
 #    - python3-sphinx-tabs
 #    - python3-sphinx-copybutton
 #   - python3-sphinx-notfound-page
-  commands:
-    #- sudo apt-get install -y cmake
-    # Use documentation target to generate doxygen XML output, generate
-    # conf.py and run Sphinx.
-    - |
-      mkdir build
-      cd build
-      cmake -DCMAKE_BUILD_TYPE=Debug -DBUILD_DOCUMENTATION=on ..
-      cmake --build . --target manual
-    # Copy the generated documentation to $READTHEDOCS_OUTPUT/html/.
-    - |
-      mkdir -p "${READTHEDOCS_OUTPUT}"
-      cp -a build/manual "${READTHEDOCS_OUTPUT}/html"
+#  commands:
+#    #- sudo apt-get install -y cmake
+#    # Use documentation target to generate doxygen XML output, generate
+#    # conf.py and run Sphinx.
+#    - |
+#      mkdir build
+#      cd build
+#      cmake -DCMAKE_BUILD_TYPE=Debug -DBUILD_DOCUMENTATION=on ..
+#      cmake --build . --target manual
+#    # Copy the generated documentation to $READTHEDOCS_OUTPUT/html/.
+#    - |
+#      mkdir -p "${READTHEDOCS_OUTPUT}"
+#      cp -a build/manual "${READTHEDOCS_OUTPUT}/html"