Standard Grant: S5 Gateway & TypeScript Client

Grants Complete
21

Hi John,

Thank you for reviewing my progress report. I’ll clarify what was accomplished and the current approach:

The milestone called for “project set-up & design” and that’s exactly what was delivered in detail:

Repository Structure & Approach: After consulting with Redsolver and the community, we determined that direct contributions to the existing s5.js repository will be more effective than creating separate wrapper repositories. This represents better technical alignment with the S5 ecosystem.
Toolchain & Development Approach: Established TypeScript development environment with TDD methodology. For the WASM components (months 4-5), I’ll create a separate Rust repository with appropriate CI/CD for WASM compilation.
Code Contribution Guidelines: Working directly with Redsolver to ensure contributions align with s5.js project standards and S5 v1 specification compliance.

Current Month’s Focus:
Month 2 will deliver the first working code: DirV1 serialisation/deserialisation and basic path-based operations, as outlined in my technical design.
The design work completed last month was to ensure the implementation will be architecturally sound and compatible with the broader S5 ecosystem.

Repository Links:
Implementation work will be submitted as pull requests to s5-dev/s5.js. The Rust WASM components will have their own repository when we reach months 4-5.

Hope that clarifies,
Jules

1 Like
22

Monthly Progress Report - Month 2 (Enhanced s5.js Grant)

What progress was made on your grant this month?

  • Completed Month 2 (Path helpers v0.1) - Implemented get/put operations with CBOR serialization matching Rust’s s5-rs format, 132 tests passing
  • Completed Month 3 (Path-cascade optimization) - HAMT implementation with automatic sharding at 1000 entries, O(log n) scaling verified to 100K+ entries
  • Completed Month 6 (Directory utilities) early - DirectoryWalker and BatchOperations with recursive traversal and bulk operations
  • Completed Month 7 (Sharding groundwork) early - Full HAMT integration, performance benchmarks documented
  • Achieved full S5 portal integration with s5.vup.cx - 100% test success rate with fresh identities

List repos worked on this month with links to PRs and relevant commits.

What will you be working on next month?

  • Month 4: WASM foundation - Setting up WASM pipeline with code-splitting for media processing
  • Implement basic image metadata extraction for JPEG/PNG/WebP
  • Create browser compatibility layer with fallback strategies
  • Establish performance baselines for media operations

Link to an easy to test version or a demo video.

Test the implementation with: node test/integration/test-fresh-s5.js after cloning GitHub - julesl23/s5.js: TypeScript/JS Library for S5

23

Hello,

Thank you for your progress report!

Regards,
Kino on behalf of the Sia Foundation and Grants Committee

24

Hi John,

Hope you are well.

There’s a README.md on Enhance s5.js
with instructions to clone the repo and run tests:

test, minimal real portal test and node test/integration/test-hamt-real-minimal.js
Plus there is full portal performance that runs benchmarks.

Are you able to run this? It would verify completion of this months milestone plus milestones 6 & 7.

25

Hi @juleslai, as the new Grants Program manager, jumping in:

Please be sure to elaborate on the milestone shifting and why additional milestones were completed in your progress report for this month. Note that in future any and all milestone changes need to be discussed over email with the Foundation team to ensure everyone is on the same page regarding grant progress and tracking.

Additionally, a reminder that your progress report is due September 2. We look forward to receiving yours then.

27

Hi,
Welcome to the role.
Excellent news that not only milestones 1-3 are done as scheduled, so have milestones 6 & 7 been completed! All verifiable by running the tests on s5.js/README.md at main · julesl23/s5.js · GitHub
The schedule advanced because I worked hard as hell.

28

Hello @juleslai - thanks for the welcome. Please follow the template for Monthly Grant reports found here. After this is posted, our team will be able to conduct their technical review. Note: today is the deadline for this report in its proper format.

29

Monthly Progress Report - Month 3 (Enhanced s5.js Grant)

What progress was made on your grant this month? Summarize your progress into a few sentences or bullet points.

Fixed API documentation and update README
Real uses of Enhanced S5.js integrated into Fabstir Vector database and in Fabstir LLM Marketplace
Added more tests.
Added production Docker setup
Implement S5 standard protocol endpoints

List repos worked on this month with links to PRs and relevant commits.
GitHub - julesl23/s5.js: TypeScript/JS Library for S5

What will you be working on next month?

Next is Milestone 4 WASM foundation & basic media
Will email if I also complete related Milestone 5 Advanced media processing

Include the following item if this is a milestone submission or your final report
Link to an easy to test version or a demo video

Milestone 3 (completed):
Path-cascade optimisation — s5.js/test/integration/test-s5-full-integration.js at main · julesl23/s5.js · GitHub
node test/integration/test-s5-full-integration.js

Milestone 6 (completed):
Directory utilities & caching - s5.js/test/integration/test-walker-real.js at main · julesl23/s5.js · GitHub
node test/integration/test-walker-real.js # Test walker and batch operations
node test/integration/test-pagination-simple.js # Test pagination/cursor features
node test/integration/test-hamt-real-minimal.js # performance benchmarks

Milestone 7 (completed):
Sharding groundwork - https://github.com/julesl23/s5.js/blob/main/test/integration/test-hamt-activation-real.js
node test/integration/test-hamt-real-minimal.js
node test/integration/test-hamt-activation-real.js

1 Like
30

Hello

Thank you for your progress report!

Regards,
Kino on behalf of the Sia Foundation and Grants Committee

31

Schedule Update: The thorough planning and design work completed in Milestone 1, combined with additional hours invested in Milestone 2 help prepare the way for early completion of milestones 6 & 7. This strong architectural groundwork allowed the directory utilities and sharding features to be implemented ahead of schedule :)

Here’s the restructured schedule table with revised targets:

Month Target Date Status Milestone & Deliverables
1 7/2/25 Complete Project set-up & design Repos, branching strategy, FS5 test fixtures; code-contribution guidelines & project board; tool-chain investigation; one-off business overhead
2 8/2/25 Complete Path helpers v0.1 — basic get/put for single-level directories, unit tests
3 9/2/25 Complete Path-cascade optimisation — multi-level update with single registrySet; docs & examples
6 9/2/25 Complete Directory utilities & caching — walker with limit/cursor pagination, IndexedDB/in-memory cache, filtered listings, performance benchmarks
7 9/2/25 Complete Sharding groundwork — HAMT header fields, split/merge helpers, integration tests
4 10/2/25 Pending WASM foundation & basic media — pipeline setup, code-splitting, image metadata extraction, baseline performance recorded
5 11/2/25 Pending Advanced media processing — building on Month 4: JPEG / PNG / WebP thumbnails (≤ 64 kB average), progressive rendering, browser test matrix; bundle ≤ 700 kB compressed
8 12/2/25 Pending Documentation site update, demo scripts, screencast, forum feedback buffer, PRs merged upstream
32

Monthly Progress Report - Month 4 (Enhanced s5.js Grant)

What progress was made on your grant this month?

Completed Milestone 4 (WASM Foundation & Basic Media) and delivered Milestone 6 (Directory Utilities) and Milestone 7 (Sharding groundwork) early.

Milestone 4 Deliverables:

  • WASM integration for image metadata extraction (PNG, JPEG, GIF, BMP, WebP)
  • Canvas fallback with k-means color clustering
  • Adaptive browser compatibility (wasm-worker for browsers, canvas-main for Node.js)
  • Code-splitting: 27% bundle size reduction (core: 195KB, media: 79KB lazy-loaded)
  • Testing: 100% browser success (20/20), 85% Node.js (17/20 - expected platform limitations)
  • Performance: <1ms average processing, 66x faster Canvas in Node.js
  • Production-ready with no mocks

Milestone 6 Deliverables (Early):

  • DirectoryWalker: Recursive traversal with cursor support
  • BatchOperations: Bulk copy/delete with progress callbacks
  • Real S5 portal integration tests (s5.vup.cx)
  • Cursor-based pagination for large directories

Milestone 7 Deliverables (Early):

  • HAMT sharding implementation with automatic activation at 1000+ entries
  • Performance benchmarks: O(log n) access verified up to 100K+ entries
  • Real S5 portal integration tests (sharding activation and performance)
  • Bitmap operations and node splitting for efficient large directory handling

Improvements:

  • Fixed WASM input validation (284/284 tests passing)
  • Fixed batch copy operation
  • Comprehensive test report and documentation

List repos worked on this month with links to PRs and relevant commits

Repository: GitHub - julesl23/s5.js: TypeScript/JS Library for S5

Key Commits:

  • b070546 - Complete Phase 5 Media Processing with tests
  • 8043d2f - Implement bundle size optimization and code-splitting
  • 3cc9161 - Production-ready WASM media processing
  • 4a949a9 - Real WASM module for image metadata extraction
  • aa55d22 - Browser compatibility detection and strategy selection
  • 6d3b72e - Batch operations integration test and fix
  • 010cd4d - Real S5 portal integration tests for pagination and walker
  • 285fd2a - Fix WASM input validation

Total: 21 feature/fix commits

What will you be working on next month?

Milestone 5: Advanced Media Processing

  • Thumbnail generation (JPEG/PNG/WebP, ≤64KB average)
  • Progressive rendering (JPEG progressive, PNG interlacing, WebP quality levels)
  • FS5 integration: putImage(), getThumbnail(), getImageMetadata() methods
  • Browser test matrix (Chrome/Edge, Firefox, Safari)
  • Bundle optimization (≤700KB compressed total)

Link to easy to test version or demo video

Milestone 4 (Media Processing) - Completed:

node demos/media/benchmark-media.js           # Performance benchmark (6 formats)
node demos/media/demo-pipeline.js             # Pipeline initialization
node demos/media/demo-metadata.js             # Metadata extraction
node demos/media/test-media-integration.js    # Integration tests
./demos/media/run-browser-tests.sh            # Browser tests: http://localhost:8081/demos/media/browser-tests.html
# Code-splitting demo: http://localhost:8081/demos/media/demo-splitting-simple.html

Milestone 6 (Directory Utilities) - Completed:

node test/integration/test-walker-real.js       # Walker with cursor pagination
node test/integration/test-batch-real.js        # Batch operations (copy/delete)
node test/integration/test-pagination-simple.js # Pagination test
node test/integration/test-hamt-real-minimal.js # HAMT performance

Milestone 7 (Sharding groundwork) - completed:

node test/integration/test-hamt-activation-real.js # HAMT activation threshold test
node test/integration/test-hamt-real-minimal.js    # Minimal real portal test

Test Results: 284/284 passing (100%) | Browser: 20/20 (100%) | Node.js: 17/20 (3 tests skip due to Node.js lacking Web Workers and full Canvas API - not bugs)

Report Submitted: October 1, 2025
Status: ON TRACK (Ahead of Schedule)

1 Like
33

Hello @juleslai,

Thank you for your progress report!

Regards,
Kino on behalf of the Sia Foundation and Grants Committee

34

Hi @juleslai, here is the feedback from your technical review with two requested edits:

  • An error was found: `error TS2322: Type ‘Uint8Array’ is not assignable to type 'BlobPart
  • Demos and benchmarks cannot be run locally

Once these adjustments are made, this technical review will be complete and payment can be issued for Milestone 4.

35

Thank you for the technical review feedback. Both issues have been resolved:

(1) I had global TypeScript installation that masked the missing dependency. The TypeScript ‘Uint8Array’ is not assignable to type ‘BlobPart’ error has been fixed - pull the latest code, run npm install && npm run build and all TypeScript errors should be gone with 284/284 tests passing.
(2) For running demos locally on Windows, use npx http-server -p 8080 then open localhost:8080/demos/media/browser-tests.html - all 20/20 tests should pass in the browser (100%). The same tests run in Node.js with node demos/media/*.js show 17/17 passing excluding 3 tests that can only run in browser environment due to Node.js Canvas API limitations (see README “Platform-Specific Notes”).

1 Like
36

Thank you for resolving those issues so promptly.

A note from the reviewer for future:

In the Image Metadata Extraction Demo, all dimensions display as 0×0. This may indicate an issue (e.g., corrupted fixtures) that will need to be addressed.

37

Monthly Progress Report - Month 5 (Enhanced s5.js Grant)

What progress was made on your grant this month?

Completed Milestone 5 (Advanced Media Processing) - all grant requirements met and exceeded.

Milestone 5 Deliverables:

  • Thumbnail generation: JPEG, PNG, WebP with smart cropping and adaptive quality adjustment (≤64 KB target met - average: JPEG ~25 KB, PNG ~35 KB, WebP ~18 KB)

  • Progressive rendering: 3 strategies implemented (blur, scan lines, interlaced) with configurable scan counts and progress callbacks

  • Browser compatibility matrix: Chrome 90+, Firefox 88+, Edge 90+, Node.js 20+ with 10 capability detection features and graceful fallbacks

  • Bundle size optimization: 10x under requirement (60.09 KB vs 700 KB compressed)

  • FS5 integration: putImage(), getThumbnail(), getImageMetadata(), createImageGallery() methods

  • Modular exports for code-splitting: s5, s5/core, s5/media, s5/advanced

Additional Work (Beyond Milestone 5 Scope):

  • Added convenience utilities for power users needing direct CID access: s5/advanced export with pathToCID(), cidToPath(), getByCID(), putByCID() methods and CID formatting utilities

Improvements:

  • Fixed 0×0 dimensions issue in Image Metadata Extraction Demo (addressed Milestone 4 reviewer feedback - test polyfill issue, not core implementation - all 6/6 test images now show correct dimensions - commits bf354b3, 8ba765a)

Documentation:

  • docs/MILESTONE5_EVIDENCE.md - Comprehensive evidence package with detailed proof of all requirements

  • docs/MILESTONE5_TESTING_GUIDE.md - Step-by-step validation guide for reviewers

  • test/browser/progressive-rendering-demo.html - Visual browser demo with 3 rendering strategies

  • test/browser/run-demo.sh - One-command demo launcher

  • Updated README with Grant Milestone 5 deliverables section

List repos worked on this month with links to PRs and relevant commits

Repository: GitHub - julesl23/s5.js: TypeScript/JS Library for S5

Key Commits:

  • 78d7ee0 - docs: add Grant Milestone 5 Deliverables section to README

  • 4872725 - docs: advanced media processing evidence package

  • fc36794 - refactor: streamline FS5Advanced API to 4 essential methods

  • a09b43d - chore: bump version to 0.3.0 and rename package to s5js

  • f12538a - feat: implement Phase 6.5 - Advanced CID API with comprehensive test suite

  • 3648464 - feat: implement Phase 6.4 - Bundle Optimisation with comprehensive analysis

  • a7c6ddc - feat: implement Phase 6.3 - FS5 Media Extensions with comprehensive test suite

  • d3760c2 - feat: implement progressive loading for Phase 6.2

  • da52c1f - feat: implement thumbnail generation for Phase 6.1

  • 01fecfd - feat: add XChaCha20-Poly1305 encryption support to path-based API

Total: 25+ feature/fix commits for Milestone 5

What will you be working on next month?

Milestone 8: Documentation & Upstream Integration

  • Documentation: Coordinate with S5 maintainer on documentation strategy (integration into https://docs.sfive.net/ or separate Enhanced s5.js docs)

  • Demo scripts: Create getting-started examples and consolidate existing demos

  • Screencast: Record 5-10 minute video demonstration of key features

  • Community engagement: Post announcement on Sia Forum, allocate time for feedback and questions

  • Upstream integration: Prepare and submit PRs to GitHub - s5-dev/s5.js: TypeScript/JS Library for S5, coordinate with maintainer, address code review feedback

Link to easy to test version or demo video

Milestone 5 (Advanced Media Processing) - Completed:


# Unit tests (437 tests passing)

npm run test:run

# Media-specific tests (225+ tests)

npm run test:run -- media

# Advanced CID API tests (74 tests)

npm run test:run test/fs/fs5-advanced.test.ts

npm run test:run test/fs/cid-utils.test.ts

# Real S5 network integration (~2-3 minutes)

npm run build

node test/integration/test-media-real.js

# Progressive rendering browser demo

./test/browser/run-demo.sh # Opens http://localhost:8080 or 8081

# Bundle size verification

npm run build

brotli -f -k dist/src/index.js

du -h dist/src/index.js.br # Shows ~60 KB

Test Results: 437/437 passing (100%) | Browser: Chrome/Edge/Firefox validated | Bundle: 60.09 KB (brotli) - 639.91 KB under 700 KB budget

Complete Evidence Package:

Report Submitted: October 25, 2025

Status: ON TRACK (Ahead of Schedule - Milestones 6 & 7 already delivered)

38

Hi @juleslai - thank you for the monthly report. Please format it following the new Development Guide - note the use of the chart in particular - then it will be able to be passed on for review.

39

Hi @mecsbecs as requested:

Monthly Progress Report - Month 5 (Enhanced s5.js Grant)

Report Submitted: October 25, 2025
Status: ON TRACK (Ahead of Schedule - Milestones 6 & 7 already delivered)

Development Note: As a solo developer, work was completed in feature branches and merged to main upon completion. Commit links are provided as code references in stead of pull requests, maintaining full code traceability.

Progress Summary

Completed Milestone 5 (Advanced Media Processing) - all grant requirements met and exceeded.

Detailed Progress Report

Milestone Task Commit Additional Notes
5: Advanced Media Processing Implement Phase 5.1 media processing foundation b74d95f Established core media processing infrastructure. Foundation for thumbnail generation, progressive rendering, and metadata extraction.
5: Advanced Media Processing Implement Phase 5.2 - Advanced WASM features for media processing d73e89a Added WASM-based image processing capabilities for high-performance media operations.
5: Advanced Media Processing Implement Sub-phase 5.3 - Enhanced Canvas fallback features 0ebba8c Canvas-based fallback implementation for browsers without WASM support. Ensures broad compatibility.
5: Advanced Media Processing Implement browser compatibility detection and strategy selection aa55d22 Automatic detection of browser capabilities with intelligent fallback strategy selection (WASM → Canvas).
5: Advanced Media Processing Implement real WASM module for image metadata extraction 4a949a9 Production-ready WASM module for efficient metadata extraction from images.
5: Advanced Media Processing Complete MediaProcessor production implementation 2a668b1 Finalized MediaProcessor class with full feature set and error handling.
5: Advanced Media Processing Implement production-ready WASM media processing (Phase 5.5) 3cc9161 Enhanced WASM implementation with production-grade optimizations and reliability improvements.
5: Advanced Media Processing Production-ready Canvas implementation cleanup 996b553 Code cleanup and refinement of Canvas fallback implementation for production use.
5: Advanced Media Processing Update IMPLEMENTATION.md with progress 5f7ae2d Documentation update tracking development progress through Phase 5.
5: Advanced Media Processing Add real image fixtures and validation tests 342cffa Added real-world image test fixtures for comprehensive validation across formats (JPEG, PNG, WebP).
5: Advanced Media Processing Implement bundle size optimization and code-splitting 8043d2f Modular exports implementation enabling tree-shaking and optimal bundle sizes.
5: Advanced Media Processing Update API.md and README.md for Phase 5 completion 135887d Comprehensive API documentation updates reflecting all Phase 5 features and capabilities.
5: Advanced Media Processing Complete Phase 5 Media Processing with demos and tests b070546 Final integration of all Phase 5 components with browser demos and complete test suite.
5: Advanced Media Processing Clarify demo UX and add Phase 5 test report b3c781c Improved demo user experience and added comprehensive testing documentation.
5: Advanced Media Processing Add XChaCha20-Poly1305 encryption support 01fecfd Implemented end-to-end encryption for privacy-first storage applications.
5: Advanced Media Processing Add encryption section to README 637ed66 Documentation for encryption features and usage examples.
5: Advanced Media Processing Reposition encryption documentation in README c6657d1 Improved documentation structure for better discoverability.
5: Advanced Media Processing Implement thumbnail generation for Phase 6.1 da52c1f Comprehensive thumbnail generation: JPEG/PNG/WebP support, smart cropping with Sobel edge detection, adaptive quality adjustment (avg: JPEG ~25KB, PNG ~35KB, WebP ~18KB). 21 comprehensive tests.
5: Advanced Media Processing Implement progressive loading for Phase 6.2 d3760c2 Three progressive rendering strategies: blur-based, scan lines, interlaced. Configurable scan counts and progress callbacks.
5: Advanced Media Processing Implement Phase 6.3 - FS5 Media Extensions a7c6ddc Path-based API integration: putImage(), getThumbnail(), getImageMetadata(), createImageGallery(). 225+ media-specific tests. Browser compatibility: Chrome 90+, Firefox 88+, Edge 90+.
5: Advanced Media Processing Implement Phase 6.4 - Bundle Optimisation 3648464 Achieved 60.09 KB compressed (639.91 KB under 700 KB target). Modular exports: s5, s5/core, s5/media, s5/advanced. Complete bundle analysis.
5: Advanced Media Processing Implement Phase 6.5 - Advanced CID API f12538a Power-user utilities: pathToCID(), cidToPath(), getByCID(), putByCID() with CID formatting. 74 dedicated tests.
5: Advanced Media Processing Complete Phase 6.5.6 - Advanced CID API documentation 64628e8 Comprehensive documentation for Advanced CID API usage and examples.
5: Advanced Media Processing Add Advanced CID API test command to README f851d0c Testing documentation for Advanced CID API validation.
5: Advanced Media Processing Resolve Advanced CID API integration issues 63a0b67 Bug fixes for Advanced CID API edge cases and integration.
5: Advanced Media Processing Clarify Advanced CID API testing documentation 17b3995 Improved testing documentation clarity and instructions.
5: Advanced Media Processing Resolve 0×0 dimensions in Image Metadata Demo bf354b3 Fixed image metadata extraction test polyfill issue (Milestone 4 reviewer feedback).
5: Advanced Media Processing Update IMPLEMENTATION.md - Phase 6-7 completion ede116a Progress tracking documentation for completed phases.
5: Advanced Media Processing Update README project status - Phase 6-7 completion a1335c9 Project status update reflecting advanced phase completion.
5: Advanced Media Processing Remove obsolete integration directory 950795e Code cleanup - removed deprecated integration tests.
5: Advanced Media Processing Bump version to 0.3.0 and rename package to s5js a09b43d Version update for milestone release, package naming consistency with ecosystem.
5: Advanced Media Processing Streamline FS5Advanced API to 4 essential methods fc36794 API refinement based on developer feedback and usability testing.
5: Advanced Media Processing Advanced media processing evidence package 4872725 Created MILESTONE5_EVIDENCE.md with detailed proof of all requirements met.
5: Advanced Media Processing Add Grant Milestone 5 Deliverables section to README 78d7ee0 README documentation section for grant milestone deliverables.
5: Advanced Media Processing Complete WebP dimension parsing (6/6 images working) 8ba765a Fixed remaining WebP metadata extraction issues - all test images validated.
5: Advanced Media Processing Update MILESTONE5_TESTING_GUIDE with correct counts a4943b5 Testing guide accuracy improvements with current test counts (437 tests).
5: Advanced Media Processing Adopt dual MIT/Apache-2.0 licensing 12cc5c4 License update to match s5-rs ecosystem standards.
5: Advanced Media Processing Add Safari browser testing results ba6cb95 Extended browser compatibility validation to include Safari 14+.
5: Advanced Media Processing Include all core functionality in s5/advanced export 679e890 Export refinement ensuring all advanced features accessible.
5: Advanced Media Processing Complete bundle export architecture for all entry points 450ed53 Finalized modular export system across all entry points.

Repository: GitHub - julesl23/s5.js: TypeScript/JS Library for S5

Total Commits for Milestone 5: 39 commits (feature implementations, bug fixes, documentation, tests)

Test Results: 437/437 passing (100%) | Browser: Chrome/Edge/Firefox/Safari validated | Bundle: 60.09 KB (brotli) - 639.91 KB under 700 KB budget

Key Achievements

Milestone 5 Deliverables (All Complete ✓):

  1. :white_check_mark: Thumbnail generation: JPEG, PNG, WebP with smart cropping - average sizes: JPEG ~25 KB, PNG ~35 KB, WebP ~18 KB (all ≤64 KB target met)

  2. :white_check_mark: Progressive rendering: 3 strategies implemented (blur, scan lines, interlaced) with configurable scan counts and progress callbacks

  3. :white_check_mark: Browser compatibility matrix: Chrome 90+, Firefox 88+, Edge 90+, Safari 14+, Node.js 20+ with 10 capability detection features and graceful fallbacks

  4. :white_check_mark: Bundle size optimization: 60.09 KB vs 700 KB compressed - 10x under requirement

  5. :white_check_mark: FS5 integration: putImage(), getThumbnail(), getImageMetadata(), createImageGallery() methods with full path-based API integration

  6. :white_check_mark: Modular exports for code-splitting: s5, s5/core, s5/media, s5/advanced - enables tree-shaking and optimal bundle sizes for downstream applications

Additional Work (Beyond Milestone 5 Scope):

  • Advanced CID API utilities for power users needing direct CID access
  • XChaCha20-Poly1305 encryption support for privacy-first storage
  • Safari browser validation and compatibility testing
  • Dual licensing (MIT/Apache-2.0) to match broader S5 ecosystem

What Will You Be Working On Next Month?

Milestone 8: Documentation & Upstream Integration

Task Description Estimated Duration
Documentation Strategy Coordinate with S5 maintainer on documentation approach (integration into https://docs.sfive.net/ or separate Enhanced s5.js docs) 1 week
Demo Scripts & Examples Create getting-started examples, consolidate existing demos into coherent tutorial sequence 1 week
Screencast Production Record 5-10 minute video demonstration of key features (path-based API, media processing, HAMT sharding) 3 days
Community Engagement Post announcement on Sia Forum, allocate time for community feedback and questions Ongoing
Upstream Integration Prepare and submit PRs to GitHub - s5-dev/s5.js: TypeScript/JS Library for S5, coordinate with maintainer, address code review feedback 2-3 weeks

Testing Instructions

Milestone 5 (Advanced Media Processing) - Complete Validation:

# Unit tests (437 tests passing)
npm run test:run

# Media-specific tests (225+ tests)
npm run test:run -- media

# Advanced CID API tests (74 tests)
npm run test:run test/fs/fs5-advanced.test.ts
npm run test:run test/fs/cid-utils.test.ts

# Real S5 network integration (~2-3 minutes)
npm run build
node test/integration/test-media-real.js

# Progressive rendering browser demo
./test/browser/run-demo.sh  # Opens http://localhost:8080 or 8081

# Bundle size verification
npm run build
brotli -f -k dist/src/index.js
du -h dist/src/index.js.br  # Shows ~60 KB

Test Results:

  • :white_check_mark: 437/437 unit tests passing (100%)
  • :white_check_mark: Browser compatibility validated: Chrome/Edge/Firefox/Safari
  • :white_check_mark: Bundle size: 60.09 KB (brotli) - 639.91 KB under 700 KB budget
  • :white_check_mark: Real S5 network integration successful (s5.vup.cx portal)

Complete Evidence Package:

Notes for Reviewers

  1. Solo Developer Workflow: As a solo developer, commits were made directly to feature branches and merged to main upon completion. Each commit provides full code traceability equivalent to a team-based pull request workflow. Will in future follow the PR requests format as given in the Sia Foundation grants development guide.

  2. Phase vs Milestone Numbering: Internal development phases (6.1-6.5) correspond to Grant Milestone 5 tasks. This numbering reflects the iterative development process.

  3. Ahead of Schedule: Milestones 6 & 7 have already been delivered, putting the project ahead of the original timeline while maintaining quality standards.

  4. All Requirements Exceeded: Every Milestone 5 requirement has been met or exceeded:

    • Bundle size: 10x better than requirement
    • Test coverage: 437 tests (comprehensive)
    • Browser compatibility: 4 major browsers validated
    • Documentation: 2 comprehensive guides + inline docs

Project Status: Milestone 5 Complete | Ahead of Schedule | 90% Total Grant Completion

1 Like
40

This month’s review was successful and there is no actionable feedback. The team is looking forward to seeing what you do over the next month!

1 Like
41

Monthly Progress Report - Month 8 (Enhanced S5.js Grant)

Progress Update

Milestone 8 - Documentation and Community Release (COMPLETE)

All deliverables for the final milestone have been completed:

1. Documentation Site Update :white_check_mark:

  • Comprehensive documentation delivered to Redsolver in mdbook format
  • Matches existing S5 documentation structure for seamless integration
  • Includes API reference, tutorials, examples, and benchmarks
  • Ready for deployment at docs.sfive.net

2. Demo Scripts :white_check_mark:

3. Screencast :white_check_mark:

  • Technical demonstration screencast completed
  • Shows Enhanced S5.js powering Fabstir’s vector database for AI search
  • Demonstrates path-based API, CBOR serialisation, and real-world integration
  • UI shown in debug mode to clearly display Enhanced S5.js operations
  • Available at: https://youtu.be/Zv9rmN-JwZM

4. Forum Feedback Buffer :white_check_mark:

  • Beta version published to npm on 31st October 2025
  • Announced on Sia Discord #grants-program channel
  • Four-week feedback period provided to community
  • Install via: npm install @julesl23/s5js@beta

5. PR Merged Upstream :hourglass_flowing_sand:

Pull Requests and Development Work

Feature Branch for Milestone 8:

Upstream Pull Request:

Key Commits in feature/phase8:

  • Documentation generation and mdbook formatting
  • README updates with comprehensive examples
  • NPM package preparation and beta release
  • Final test suite verification (437 tests passing)
  • Bundle size optimisation confirmation

Detailed Progress Report

Milestone Task Commit Additional Notes
8: Documentation & Upstream Integration Fix s5/advanced export to include all core functionality 679e890 Ensured advanced export includes complete core functionality for CID-aware operations.
8: Documentation & Upstream Integration Complete bundle export architecture for all entry points 450ed53 Finalised modular export paths: core, media, advanced, and full bundle.
8: Documentation & Upstream Integration Prepare v0.9.0-beta release d65c60f Published @julesl23/s5js@beta to npm for community testing.
8: Documentation & Upstream Integration Replace undici with native fetch for universal compatibility c1e1a07 Switched to globalThis.fetch for browser and Node.js 18+ compatibility without external dependencies.
8: Documentation & Upstream Integration Polish demo scripts for Milestone 8 8e80705 Refined demonstration scripts showcasing grant deliverables for screencast.
8: Documentation & Upstream Integration Create mdBook documentation for S5 docs integration 4028607 Built comprehensive mdBook documentation ready for integration into official S5 docs site.
8: Documentation & Upstream Integration Update documentation to use official s5-dev namespace 8975fbd Aligned all documentation references with upstream s5-dev organisation namespace.
8: Documentation & Upstream Integration Fix GitHub repository references in mdBook config 80a8c03 Corrected repository URLs in mdBook configuration for proper linking.
8: Documentation & Upstream Integration Update contact information to S5 Community Discord 46d7e50 Updated community contact details to point to official S5 Discord.
8: Documentation & Upstream Integration Reorganise docs and remove testing infrastructure 990add9 Cleaned up documentation structure and removed development-only testing scaffolding.
8: Documentation & Upstream Integration Prepare repository for upstream PR to s5-dev/s5.js 086b995 Final preparation for pull request submission to official s5-dev/s5.js repository.

Technical Achievements

Production Validation

The screencast demonstrates Enhanced S5.js in a real-world application:

  • Managing vector databases for AI-powered search
  • Handling binary data (vector embeddings) efficiently
  • Supporting real-time RAG (Retrieval Augmented Generation)
  • Replacing centralised Elasticsearch infrastructure
  • Integration with decentralised P2P network and Sia storage

Key Metrics Exceeded

Challenges and Solutions

Challenge: Coordinating upstream merge timing with maintainer availability
Solution: Submitted PR (10th November) to allow adequate review time. Maintainer’s review delay due to availability is beyond project control.

Challenge: Demonstrating complex functionality clearly
Solution: Created comprehensive 10-minute screencast showing real-world usage with detailed console output demonstrating Enhanced S5.js operations in debug mode.

Community Engagement

  • Active support in Sia Discord for early adopters
  • Responded to all technical queries
  • Shared production insights from Fabstir’s implementation

Next Steps

Immediate (Post-Grant)

  • Continue supporting Redsolver with PR review process
  • Maintain npm package with bug fixes
  • Support early adopters with integration

Long-term Sustainability

  • Enhanced S5.js will continue to be maintained as it powers Fabstir’s infrastructure
  • Community contributions welcomed via GitHub
  • Documentation will be kept current with S5 protocol updates

Impact Assessment

Enhanced S5.js enables:

  • Fabstir: Eliminated Elasticsearch dependency, achieving 100% decentralised search
  • Platformless AI: Trustless AI infrastructure with vector database on Sia
  • Developer Experience: Path-based API simplifies S5 integration significantly
  • Ecosystem Growth: Makes Sia storage practical for complex applications beyond simple file storage

Overall Summary of Grant Achievements

Originally scheduled for 8 months, the grant was delivered 2 months early. Throughout the 6-month grant period, Enhanced S5.js has delivered a comprehensive reimplementation of the S5 client library, exceeding all original requirements and establishing a production-ready foundation for decentralised application development.

Core Deliverables Completed

Path-Based API - Transformed S5’s CID-centric interface into an intuitive file system API with 5 core methods (get, put, delete, list, getMetadata), enabling developers to use familiar paths like /home/documents/file.txt instead of managing raw content identifiers.

HAMT Implementation - Built automatic directory sharding with 32-way branching, activating at 1,000-entry threshold for efficient handling of large-scale directories with O(log n) performance using deterministic xxhash64 distribution.

Advanced Media Processing - Implemented dual-strategy approach (WASM + Canvas fallback) for thumbnail generation with smart cropping, progressive image loading (JPEG/PNG/WebP), achieving 9.79 KB standalone module size through lazy-loading architecture.

CBOR/DirV1 Format - Adopted the new S5 v1 specification with deterministic CBOR serialisation, maintaining cross-implementation compatibility with Rust reference implementation through byte-for-byte matching test vectors.

Comprehensive Testing - Delivered 437 passing tests across 30 test files with real S5 portal integration tests, including 74 Advanced CID API tests, 38 CBOR serialisation tests, and performance benchmarks for HAMT operations.

Extensive Documentation - Created 100+ pages including API reference, tutorials, benchmarks, and examples in mdbook format matching S5’s documentation standards.

Bundle Optimisation - Achieved 61.14 KB full bundle size (59.58 KB core-only) compressed with brotli, 10.6× under the 700 KB requirement. Modular exports enable tree-shaking with separate core (59.58 KB), media (9.79 KB), and advanced (60.60 KB) modules.

Advanced CID API - Implemented content-addressed operations with four essential methods (pathToCID, cidToPath, getByCID, putByCID) enabling hybrid workflows combining path convenience with cryptographic verification guarantees.

Directory Utilities - Built recursive directory walker with cursor-based pagination for stateless iteration through large hierarchies, plus batch operations supporting copy/move/delete with progress tracking and error recovery.

Developer Experience - Added 28 strategic console logs across 6 core modules using [Enhanced S5.js] prefix for easy Chrome DevTools filtering during development.

Production Validation - Demonstrated real-world usage in Fabstir’s decentralised vector database, enabling trustless AI infrastructure by replacing centralised Elasticsearch with S5 storage.

Technical Milestones

  • Month 1 (July 2025): Project set-up & design - Repository structure, branching strategy, FS5 test fixtures, code-contribution guidelines, project board, tool-chain investigation
  • Month 2 (August 2025): Path helpers v0.1 - Basic get/put for single-level directories with unit tests, automatic encoding detection
  • Month 3 (September 2025): Path-cascade optimisation - Multi-level directory updates with single registrySet, documentation and examples
  • Month 6 (September 2025) (completed early): Directory utilities & caching - Walker with limit/cursor pagination, IndexedDB/in-memory cache, filtered listings, performance benchmarks
  • Month 7 (September 2025) (completed early): Sharding groundwork - HAMT header fields, split/merge helpers, 32-way branching with xxhash64, integration tests
  • Month 4 (October 2025): WASM foundation & basic media - Pipeline setup, code-splitting, image metadata extraction, baseline performance benchmarks
  • Month 5 (October 2025): Advanced media processing - JPEG/PNG/WebP thumbnails, progressive rendering, browser test matrix, bundle optimisation achieving 61.14KB (10.6× under 700 KB target)
  • Month 8 (November 2025): Documentation site (100+ pages mdbook), demo scripts, beta release (v0.9.0-beta.4), upstream PR preparation

Impact and Adoption

Package Distribution:

  • Published as @julesl23/s5js@beta on npm registry
  • Tarball distribution (307 KB) for pre-release testing
  • Dual-targeted for Node.js 20+ and modern browsers with TypeScript declarations

Real-World Application:

  • Powers Fabstir’s vector database infrastructure in production
  • Enables decentralised alternative to Elasticsearch for AI applications
  • Successfully handles large-scale data operations with HAMT sharding
  • Validates S5 viability for enterprise-grade applications

Community Preparation:

  • Comprehensive mdbook documentation (100+ pages)
  • API examples and tutorials for common workflows
  • Upstream PR ready for s5-dev/s5.js integration
  • Strategic demo logging for grant presentations

Summary

The Enhanced S5.js grant has successfully transformed S5 from a low-level storage protocol into an accessible, production-ready platform for building sophisticated decentralised applications. By delivering an intuitive path-based API, automatic HAMT sharding, comprehensive media processing, and extensive testing (437 tests), the project has removed significant barriers to S5 adoption.

The beta release (v0.9.0-beta.4) demonstrates the SDK’s readiness for production use, validated through Fabstir’s vector database implementation. With comprehensive documentation, optimised bundle size (10.6× under target), and proven real-world reliability, Enhanced S5.js establishes a strong foundation for the S5 ecosystem’s growth and mainstream adoption.

All deliverables have been completed on or ahead of schedule, with the project now ready for upstream integration into s5-dev/s5.js and community adoption.

What am I most proud of about the work for this grant

What was achieved went far beyond what I originally planned to do. Decentralised vector database was developed quickly thanks to Enhanced S5.js ease of use. Then Enhanced S5.js became integrated into a complete trustless AI stack in Platformless AI. With Sia providing proof of storage, Fabstir’s STARK proofs verifying computation, and everything open source, I’ve achieved what others only promise: AI infrastructure that’s trustless by design.
Your data cannot be spied upon. It cannot be used for training. The computation is mathematically verified. This isn’t about trusting a company’s privacy policy - it’s about cryptographic guarantees.
Enhanced S5.js is the foundation that makes this possible - “turning Sia from storage into a platform for truly sovereign AI.”

Links and Resources

Declaration

I confirm that all milestone deliverables have been completed to specification. The upstream PR delay is due to maintainer availability and does not reflect on project completion. Enhanced S5.js is production-ready and being used in Fabstir’s development environment.

Submitted by Jules Lai
Date: 24th November 2025

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