Attempt CI build with sagetex etc

.gitlab-ci.yml

-stages:
-  - build
-
 variables:
   GIT_SUBMODULE_STRATEGY: normal
 
-build:
-  stage: build
-  image: registry.gitlab.com/islandoftex/images/texlive:latest
+sagetex-sty-copy:
+  image: 
+    name: docker.io/sagemath/sagemath
+    entrypoint: [""]
+  tags: ["x64"]
+  script: cp /home/sage/sage/local/var/lib/sage/venv-python3.9.9/share/texmf/tex/latex/sagetex/sagetex.sty .
+  artifacts:
+    paths:
+      - sagetex.sty
+
+create-py-modules:
+  image: 
+    name: docker.io/sagemath/sagemath
+    entrypoint: [""]
+  tags: ["x64"]
+  script: make pymodules
+  artifacts:
+    paths:
+      - sagetexscripts/*.py
+
+create-sage-script:
+  image: docker.io/texlive/texlive
+  tags: ["x64"]
+  needs: [sagetex-sty-copy]
   script:
-    - latexmk
+    - make main.sagetex.sage
   after_script:
     - cat main.log
+  artifacts:
+    paths:
+      - main.sagetex.sage
+      - sagetex.sty
+
+run-sage-script:
+  image: 
+    name: docker.io/sagemath/sagemath
+    entrypoint: [""]
+  needs: [create-sage-script, create-py-modules]
+  tags: ["x64"]
+  script: sage main.sagetex.sage
+  artifacts:
+    paths:
+      - "*sagetex*"
+
+build:
+  image: docker.io/texlive/texlive
+  needs: [run-sage-script]
+  tags: ["x64"]
+  script: make main.pdf
   artifacts:
     paths:
       - main.pdf
+