Web Typing Speed & Accuracy Test

I need a lightweight, browser-based typing test that I can run locally or on a small personal server. Its core job is simple: present a passage, start a timer the moment I type the first character, and when I finish, report both my words-per-minute and an accuracy percentage... (Budget: $10 - $30 USD, Jobs: CSS, Frontend Development, HTML, HTML5, JavaScript, Svelte, Vue.js, Web Development)