The excellent accessibility audit provided for Jupyter Notebook is primarily is limited to WCAG 2.0 issues. It does not address many 2.1 issues, especially the extensions that were made for low vision.
The primary deficit for Jupyter Notebook is the inability to enlarge to 400% with full word wrapping.
I believe this is a CSS issue primarily, and it is easily solved. Structurally the Jupyter interface is extremely good, that is why the audit turned up so little. Having done audits professionally, I can say this is a good first audit report for Jupyter.
I am a member of the Accessibility Working Group and the Low Vision Task Force of the W3C, and I am very interested in seeing your work succeed. Also as one of the very few people to earn a PhD in Mathematics with congenital low vision I am thrilled to see STEM opened to young people like me.
I will be making a presentation this spring at the CSUN Assistive Technology Conference in Anaheim. My goal is to pull together as many people as possible to address accessibility tools for scientists with low vision.
I will follow soon with and extension of your fine accessibility audit that includes WCAG 2.1 extensions.
Best, Wayne Dick