trying to fix readthedocs build

.readthedocs.yaml

@@ -5,7 +5,6 @@
 # Required
 version: 2
 
-# Set the OS, Python version and other tools you might need
 build:
   os: ubuntu-22.04
   tools:
@@ -14,10 +13,15 @@ build:
   commands:
     - python -m venv .venv
     - . .venv/bin/activate
-    - pip install -r requirements.txt
+    - python -m pip install --exists-action=w --no-cache-dir -r requirements.txt
     - maturin develop --release
+    - python -mvirtualenv $READTHEDOCS_VIRTUALENV_PATH
+    - python -m pip install --upgrade --no-cache-dir pip setuptools
+    - python -m pip install --upgrade --no-cache-dir sphinx readthedocs-sphinx-ext
+    - python -m pip install --exists-action=w --no-cache-dir -r docs/requirements.txt
+    - cat docs/conf.py
+    - python -m sphinx -T -E -b html -d _build/doctrees -D language=en . $READTHEDOCS_OUTPUT/htm
 
-# Build documentation in the "docs/" directory with Sphinx
 sphinx:
    configuration: docs/conf.py