md-2-pt.js

// Name: Markdown to Portable Text
/** @type {import("@johnlindquist/kit")} */

const { markdownToRichText } = await npm("@tryfabric/martian");
const showdown = await npm("showdown");
const input = await getSelectedText();
const output = markdownToRichText(input);
const converter = new showdown.Converter();

const html = converter.makeHtml(input, {
  omitExtraWLInCodeBlocks: true,
});

await exec(`
echo "${html}" | textutil -stdin -format html -convert rtf -stdout | pbcopy
`);