Build an Offline-First Multilingual Stock Catalog Sync for Rural Retailers
Cache local merchant inventory changes during network outages and synchronize catalog diffs when connectivity resumes. Translate informal item names into standardized vernacular product cards for decentralized marketplaces.
What you are building
The core problem, expected build, and operating context for this challenge.
Cache local merchant inventory changes during network outages and synchronize catalog diffs when connectivity resumes. Translate informal item names into standardized vernacular product cards for decentralized marketplaces.
Rural retail operations coordinator
Store locally captured product adjustments in an offline SQLite store using normalized Beckn item schemas.
Detect network availability and queue outgoing catalog changes with optimistic conflict resolution.
Translate vernacular product names and unit descriptions using ISO-639 language-tagged translation fixtures.
Assemble synchronization manifests and alert merchants to conflicting quantity updates for manual sign-off.
Progressive Web App with offline local storage indicators, pending sync badges, and conflict review panels.
Generate local SQLite mock inventory records and synthetic multilingual text pairs covering Hindi, Tamil, and English. Starter examples below are synthetic. They are not downloaded records.
Bhashini documentation Adopts Bhashini ISO-639 language code standards and translation pipeline concepts for vernacular catalog representations.
ollama, sqlite3, pydantic. Enables completely local, offline execution of small models for on-device product attribute extraction. Quantized 7B parameter open-weights model running locally via Ollama without cloud internet dependencies.
Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.
Persists inventory updates locally when simulated connectivity is toggled off.
Formats synced catalog diffs using standard Beckn context and catalog item structures.
Flags dual-write stock quantity conflicts without automatically overwriting remote entries.
```json [ { "input": { "device_id": "POS-DEV-01", "offline_mutation": { "item_id": "PROD-882", "vernacular_name": "चावल बासमती", "language_code": "hi", "quantity_change": -10, "timestamp": "2023-10-24T10:15:00Z" }, "server_stock": 50 }, "expected_output": { "sync_status": "ready_to_commit", "standard_title": "Basmati Rice", "new_stock_level": 40, "conflict_detected": false } }, { "input": { "device_id": "POS-DEV-01", "offline_mutation": { "item_id": "PROD-882", "vernacular_name": "चावल बासमती", "language_code": "hi", "quantity_change": -60, "timestamp": "2023-10-24T10:30:00Z" }, "server_stock": 50 }, "expected_output": { "sync_status": "conflict_held", "standard_title": "Basmati Rice", "new_stock_level": 50, "conflict_detected": true } } ] ```
Maintains an offline sandboxed ledger without accessing sensitive identity stores or live external inventory mainframes. Use mock external writes. Require human review before any real deployment.
Participation guide
Maintains an offline sandboxed ledger without accessing sensitive identity stores or live external inventory mainframes. Use mock external writes and human review.
How work is evaluated
Persists inventory updates locally when simulated connectivity is toggled off. Formats synced catalog diffs using standard Beckn context and catalog item structures. Flags dual-write stock quantity conflicts without automatically overwriting remote entries.
Runnable source, pinned dependencies, setup commands, working interface, example outputs, recorded demo, tests, and action logs.
Challenge datasets
Public datasets, plus the private datasets you have access to.
How submissions are scored
These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.
Complete workflow
Store locally captured product adjustments in an offline SQLite store using normalized Beckn item schemas. Detect network availability and queue outgoing catalog changes with optimistic conflict resolution. Translate vernacular product names and unit descriptions using ISO-639 language-tagged translation fixtures. Assemble synchronization manifests and alert merchants to conflicting quantity updates for manual sign-off.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Correctness and evidence
Persists inventory updates locally when simulated connectivity is toggled off. Formats synced catalog diffs using standard Beckn context and catalog item structures. Flags dual-write stock quantity conflicts without automatically overwriting remote entries.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Review interface
Progressive Web App with offline local storage indicators, pending sync badges, and conflict review panels.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Safe execution
Maintains an offline sandboxed ledger without accessing sensitive identity stores or live external inventory mainframes.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
What you should walk away with
Store locally captured product adjustments in an offline SQLite store using normalized Beckn item schemas.
Detect network availability and queue outgoing catalog changes with optimistic conflict resolution.
Translate vernacular product names and unit descriptions using ISO-639 language-tagged translation fixtures.
Assemble synchronization manifests and alert merchants to conflicting quantity updates for manual sign-off.
Reference links and supporting material
Generate local SQLite mock inventory records and synthetic multilingual text pairs covering Hindi, Tamil, and English. Supplied starter examples are synthetic, not source extracts.
Challenge setup
Configuration summary for this challenge.
Challenge input
Input details are not configured.
Ollama
Local LLM runtime for offline inference.
Evaluated output
No output checks are configured.
- Store locally captured product adjustments in an offline SQLite store using normalized Beckn item schemas....
- Persists inventory updates locally when simulated connectivity is toggled off. Formats synced catalog diffs...
- Progressive Web App with offline local storage indicators, pending sync badges, and conflict review panels.
- 2 public reference cases
- 1 configured tool
Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.
View technical recipe
Configured tools
- Ollama · Optional
Evaluation contract
- Complete workflow · Weight 40
- Correctness and evidence · Weight 30
- Review interface · Weight 20
- Safe execution · Weight 10
Reference cases
- 2 public reference cases
Workflow tasks
No workflow tasks are configured.
Recipe freeze marker
No recipe freeze time is recorded.