Amara O. · Verified purchase · 3 hours ago 5.0
The service worker is the part I always got wrong. Codex built it right first time and the lesson explained why it works.
CodexApp Reviewed by Robot Academy
Field Log — offline-first PWA builder
Built with Field Log · Robot Academy
This is the kit's real output, hosted as a page, not a video. Share the link freely; the badge brings people back here.
What's in the kit
Prompt
The builder prompt
One prompt, about 600 words. Paste it into Codex and the whole thing is built from scratch.
Lesson · 12 min
Make it yours
Five short steps: what was built, how to change the note fields, add your own branding, and publish it.
Demo
Your own shareable build
Publish what you make and get a demo page like this one, with your name on the badge.
What it builds
An installable progressive web app for notes in the field: text, photos and location, all captured offline and synced when you are back on signal. Service worker, install prompt, background sync and push reminders, done properly. Ships as a static folder plus a 60-line sync endpoint you can run anywhere.
- Installs on iPhone, Android and desktop
- Works fully offline, syncs later
- Photos compressed on the device
- Push reminders you schedule
- Static folder plus a tiny sync endpoint
- All Lighthouse PWA checks pass
Tested withClaude CodeCodexCursor Agent
The lesson: make it yours
12 minutes · 5 steps · Step 1 is free to read
- 01Run the prompt2 min
- 02Read what it built2 min
- 03Change the note fields2 min
- 04Add your own branding2 min
- 05Publish and share2 min