Lighthouse score before and now. Screen reader-friendly, functional images (not just decorative), color contrast, keyboard accessible, semantic headings, page flow of landmarks.
Focus on issues and advice colleagues and friends have asked about that can help people entering the field.
Teach skills in a way to get started or start implementing methodologies on a current project, instead of reading paragraph after paragraph of a case study. Tutorials re-written in a way that someone with cognitive impairment (like me) doesn't have to struggle to think or remember.
Found out who my audience is and what they'd like to learn about. How can I help?