Bardan Tech · Education · Web app

Lerna, built for Bardan Tech: an installable web app with a reels-style vertical feed of interesting things to learn, with real content from open sources.

Client
Bardan Tech
Industry
Education · Web app
Stack
PHPHTMLCSSJavaScriptPWAService Worker
Visit lerna.bardan.tech
One card per screen: swipe up for the next one.
Real species from iNaturalist, with scientific name and group.
Trivia questions answered right on the card.
Wikipedia articles, with "See more" and a link to the source.
Save and share on every card.
Filters by category.

The problem

Vertical feeds are addictive, but they rarely leave anything behind. Bardan Tech wanted a product with the same swipe gesture, where every card teaches something verifiable and sourced, no accounts and no ads.

What we did

  • Infinite feed with one card per screen and snap scrolling.
  • Content from public sources: Wikipedia and "on this day", NASA's astronomy picture, iNaturalist species, The Met artworks and trivia.
  • Every card cites its source and license, with a link to read more.
  • Favorites saved on the device, one-tap sharing and category filters.
  • Spanish and English, switchable.
  • Installable as an app (PWA), caching the shell while content stays fresh.
  • PHP and JavaScript with no frameworks, plus content-hashed assets for cache-safe deploys.
Services usedCustom software
See all work

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