As a Web developer, I often need to use Markdown to write documents, and for Markdown, a graphing bed is especially important. One day, I in the use of github pages and github actions to build an open source project in the promotion of the page, I found that making static image can directly access on the pages. I suddenly realized that why gh pages cannot be used as a figure of graphing bed, although the picture size limits in 5M, so there will be a picpic, then I make it a NPM package, developers can use simple picpic to build their own bed.