A mobile client for recording field traceability events across marine plastic collection, recycling, and manufacturing workflows.
A real-world project demonstration is available in this video walkthrough.
1. At the Port:
- Port coordinators weigh the fisherman’s waste collection and scan their ID card.
- Data is submitted and attested using the port coordinator’s wallet.
2. Waste Collection Transportation:
- When onsite containers reach capacity, the waste is shipped to the recycler.
3. At the Recycler:
- The recycler weighs the container using a weighbridge, generating a weight slip.
- The recycler sorts the materials and logs the sorted data with identifier codes in the app, submitting the data with an attestation.
- When raw materials like pellets are produced, the recycler records the quantity and makes a final attestation.
4. To the Manufacturer:
- Pellets are shipped to the manufacturer.
- The manufacturer records the production of end-user products, entering data and making attestations.
The field traceability mobile client is designed with the users’ physical and digital constraints in mind:
- Offline-first approach: Recognizing limited internet access at many sites, the app operates offline, storing data locally until a connection is available for submission and attestation.
- Flexible UX: With operational workflows varying across countries, the user experience is designed to be generic, ensuring adaptability to different scenarios.
This is an Expo project created with create-expo-app.
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Install dependencies
npm install
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Start the app
npx expo start
In the output, you'll find options to open the app in a
- development build
- Android emulator
- iOS simulator
- Expo Go, a limited sandbox for trying out app development with Expo
You can start developing by editing the files inside the app directory. This project uses file-based routing.
This project is licensed under the GNU Affero General Public License v3.0. See LICENSE.md.
Copyright © 2024-2026 Pollen Labs.