convert HTML to Gemini markup through Firefox's Reading Mode

README.md

npm install @mozilla/readability jsdom
go install github.com/LukeEmmet/html2gmi@master
curl https://www.bortzmeyer.org/gemini.html | node main.js | html2gmi -l 1 > output.gmi

main.js

var { Readability } = require('@mozilla/readability');
var { JSDOM } = require('jsdom');
var fs = require('fs');
let data = fs.readFileSync(0, 'utf-8');
var doc = new JSDOM(data, {
        url: "http://example.com"
});
let reader = new Readability(doc.window.document);
let article = reader.parse();
console.log(article.content)