https://skillsf.com/skills/ssuixinsuoyu/derive-math-animations-skill 2026-08-16T02:51:44.352028+00:00 weekly 0.6 https://skillsf.com/skills/DandreYang/local-image-gen 2026-08-19T14:58:43.173039+00:00 weekly 0.6