Building in public means you get to see the pile of work between releases — so here's the pile. Over the last stretch Chervil went from "an agentic browser that builds interactive lessons" to something noticeably bigger: a small platform for making, sharing, and measuring interactive content, plus a few agentic touches that reach off the page and into the real world.
Here's everything that just shipped.
Lessons grew a sibling: quizzes
The learning vertical started with Lessons — ask Sprig to teach you a topic and it builds a swipeable deck of cards with hands-on, generative applets. Under the hood, we reworked that into a small skill framework: a lesson is just one kind of thing Sprig can build, and adding a new kind is now a single registry entry instead of a bespoke pipeline.
The first thing that framework bought us is a second skill: Quiz.
Type /quiz photosynthesis (or flip the new ❓ Quiz toggle in the composer and ask) and Sprig builds a graded, multiple-choice quiz — pick an answer, submit, and get a score with the correct answers and an explanation for each question. It's a self-contained little app, same as a lesson, and it runs locally in the app.
The composer now has a proper skill picker — 🎓 Learn and ❓ Quiz sit right next to 🔬 Deep Dive — so you choose what Sprig should make, not just what to ask.
Publish quizzes too — and get a home for everything
Publishing used to be lessons-only. Now anything you build can go to a shareable getchervil.com link — lessons and quizzes — and it opens on any phone or browser with a proper social preview.
To go with that, you now get a public profile. Claim a handle on your account page and you get a page at getchervil.com/profile/yourname that gathers everything you've published into one browsable library. Every published page also links back to its author, so a single good lesson can lead someone to all the rest of your work. Profiles are open to anyone who publishes — it's how Chervil's stuff spreads.
See exactly where learners drop off
Views are a blunt instrument. So authors now get a per-card analytics funnel for every published lesson.
Open any lesson from your account page and you'll see the numbers that matter: how many people viewed it, how many actually started, the completion rate — and a slide-by-slide chart of where people stop. If everyone bails on card 4, that's your problem card. The reader reports progress privately as people swipe; no accounts required for viewers, and the per-viewer counts stay anonymous.
Maps and phone numbers become actions
This is the one that feels like the future the agentic browser is supposed to deliver.
When a page Sprig composes mentions a real place, it no longer draws a fake, dead map. It links the real thing — and clicking it lets you open Google Maps right inside Chervil, or send the pin to your phone with a QR code you scan with your camera. Planning dinner on the desktop, walking directions in your pocket.
When a page includes a phone number, Chervil turns it into a one-tap choice: call it straight from your PC (through your desktop's calling app) or send it to your phone. No more copy-paste-squint-redial.
The principle here is the one Chervil keeps coming back to: when there's a real service or a real device that does the job, use it — don't have the AI paint a worse imitation.
The app stays free
All of the making — lessons, quizzes, composed pages, applets — is free and local, with your own AI keys. The hosting side (shareable links, your public profile, the analytics funnel) is what Chervil Pro is for: it's the part that costs us servers, not the part that should ever cost you your independence.
Download Chervil, build a lesson or a quiz, and publish it — I'd genuinely love to see the first profiles fill up.
More tomorrow. We're just getting going.