# 6-Month Development Plan
## Filecoin Data Preparation Tools

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## Project Overview

### Team Composition
- **2 Developers** - Core implementation and testing
- **1 Project Manager/Software Architect** - Design, coordination, and documentation

### Technical Specifications
- **Platform Support:** Linux and macOS only
- **Implementation Language:** Rust
- **Testing Strategy:** Property-based testing with proptest crate
- **License:** Apache/MIT dual license
- **Total Budget:** **$96,000** (6 milestones × $16,000)

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## Development Milestones

### Month 1: Specifications & Architecture
**Cost:** **$16,000**

#### Deliverables
- Canonical form transformation specification
- JSON manifest format specification with schema
- System architecture document
- Property-based test strategy document

#### Team Focus
- **PM/Architect:** Write specifications, design system architecture
- **Developer 1:** Research UnixFS/CAR formats, prototype ideas
- **Developer 2:** Set up project structure, CI/CD, proptest framework

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### Month 2: Core Packer Implementation
**Cost:** **$16,000**

#### Deliverables
- `filecoin-pack` CLI tool
- Directory to CAR file conversion with manifest generation
- Proptest suite for packer (1000+ property tests)
- Support for files up to 32 GiB

#### Team Focus
- **PM/Architect:** API design, code reviews
- **Developer 1:** Implement CAR packing algorithm
- **Developer 2:** Implement manifest generation, proptests

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### Month 3: Large File Support
**Cost:** **$16,000**

#### Deliverables
- File splitting for files > 32 GiB
- Byte-range tracking in manifests
- Proptest suite for splitting logic
- Performance target: 100 MB/s packing speed

#### Team Focus
- **PM/Architect:** Design splitting strategy, performance testing
- **Developer 1:** Implement file splitting algorithm
- **Developer 2:** Update manifest format, write proptests

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### Month 4: Unpacker Implementation
**Cost:** **$16,000**

#### Deliverables
- `filecoin-unpack` CLI tool
- CAR extraction with manifest validation
- File reassembly from splits
- Proptest suite for unpacking (1000+ tests)

#### Team Focus
- **PM/Architect:** Validation strategy, integration testing
- **Developer 1:** Implement CAR unpacking
- **Developer 2:** Implement validation, proptests

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### Month 5: File Discovery Tool
**Cost:** **$16,000**

#### Deliverables
- `filecoin-find` CLI tool
- CID-based file location
- UnixFS tree traversal
- Proptest suite for path finding

#### Team Focus
- **PM/Architect:** Query optimization, documentation
- **Developer 1:** Implement CID traversal logic
- **Developer 2:** Deal querying, proptests

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### Month 6: Integration & Release
**Cost:** **$16,000**

#### Deliverables
- Single binary with all tools integrated
- Comprehensive proptest coverage (5000+ tests)
- User documentation (30 pages)
- Debian/Homebrew packages

#### Team Focus
- **PM/Architect:** Documentation, release management
- **Developer 1:** Integration, packaging
- **Developer 2:** Final proptests, performance optimization

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## Technical Requirements

| Requirement | Specification |
|-------------|---------------|
| Implementation Language | Rust |
| Testing Framework | Property-based testing (proptest) |
| Platform Support | Linux and macOS |
| License | Apache/MIT dual license |
| CI/CD Platform | GitHub Actions |
| Windows Support | Not required |

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## Success Metrics

- **Accuracy:** 100% round-trip accuracy (proptest verified)
- **Performance:** Pack 10 GB in < 100 seconds
- **Reliability:** Zero panics in 10,000 proptest runs
- **Size:** Binary size < 50 MB
- **Test Coverage:** 5000+ property-based tests across all components

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## Risk Mitigation

### Technical Risks
- **Performance bottlenecks:** Continuous benchmarking and profiling
- **Data corruption:** Extensive property-based testing
- **Platform compatibility:** Early testing on both Linux and macOS

### Project Risks
- **Scope creep:** Strict adherence to milestone deliverables
- **Timeline delays:** Monthly progress reviews and adjustments
- **Quality issues:** Mandatory code reviews and automated testing

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## Conclusion

This development plan provides a structured approach to building production-quality Filecoin data preparation tools. The emphasis on property-based testing ensures reliability, while the phased approach allows for iterative development and early feedback incorporation.

The total investment of **$96,000** over 6 months will deliver a comprehensive toolkit that addresses the core requirements outlined in the RFP, with particular focus on data integrity, performance, and ease of use.