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Virtual whiteboard for sketching hand-drawn like diagrams

中文手绘知识讲解视频 Codex Skill：逐笔故事、双语义岛、让怪诞小黑动起来与程序动画

Nortantis is a fantasy map generator. It uses a simple tectonic plate simulation to create islands and continents with trees, rivers, and mountains. The result has the appearance of an old-fashioned hand-drawn map.

Premium hand-drawn animated architecture diagram Codex skill

Hand-drawn CSS annotations for inline content

Generate full-background Anthropic-style editorial illustrations with verified palette and hand-drawn visual rules.

Agent skill: convert Chinese story copy or ordered images into a hand-drawn diary-comic animation (silent MP4 picture track).

Codex skill for turning everyday photos into poetic white-paper hand-drawn illustrations.

Hand-drawn UI controls. Every mount generates a fresh pen sketch from seeded randomness, and the stroke boils like an animated doodle. Zero dependencies, 4 KB of JS and one stylesheet.