Video description + SEO tags

Write a YouTube video description for a video titled '{{title}}' about {{topic}}. Include: a 2-3 sentence opening that includes the primary keyword naturally, a chapter timestamp section (use {{chapters}} if provided or invent reasonable ones), a 'Resources mentioned' section, a connect/follow section, and 15 relevant tags as a comma-separated line at the bottom. Keep total length under 1000 characters above the fold.