2025-09-01 Waku Weekly

Highlights §

• nwaku:
  • Progress in opinionated nim-ffi with protobuf.
  • Progress in RLN codebase simplification.
  • Creation of Android Status apk containing nim-sds.
• js-waku:
  • Improve Filter resources cleanup

Introduce E2E Reliability in Status Communities §

• SDS protocol in Status - basic integration
  • achieved: [nwaku] Create Status Android apk with libsds.so included
  • next: [nwaku] Adapt nim-sds to iOS and Windows

Improve DevEx: API, TWN, Metrics, Docs §

• Introduce Waku API in the Browser
  • next:
    • [js-waku] introduce Codec entity
    • [js-waku] messaging storage
    • [js-waku] improve types of LightPush / Filter
    • [js-waku] lightPush v3: determine if light push peer supports v3
    • [js-waku] lightPush v3: add types for new error codes

Deploy RLN onchain tree on L2 Testnet §

• Create nim-ffi
  • achieved:
    • [nwaku] Opinionated ffi solution demo: https://github.com/NagyZoltanPeter/nim-binding-demo
      • uses protobuf and auto de/marshalling.
      • added synchronous and async way of calling API
      • event channel
      • single binding lib to deploy per host language
  • next:
    • [nwaku] Create a fundamental nim-ffi repository that extracts the current libwaku logic.
    • [nwaku] Extend opinionated ffi solution demo: https://github.com/NagyZoltanPeter/nim-binding-demo
      • Support for return value
      • Support multiple contexts
      • Code gen from protobuf (Rust/C++/Go)

Maintenance §

• achieved:
  • [nwaku] Unite token_bucket changes in nim-chronos
    • token unification in nim-chronos
    • Update nwaku - draft till nim-chronos changes are merged
  • [nwaku] Update miniupnpc vendor in nim-nat-traversal
  • [js-waku] browser simulations dialing issue
  • [js-waku] improve Filter resources cleanup
• next:
  • [nwaku] Refactor rln-relay and post sync test
  • [nwaku] Bump dependencies to v0.37.0
  • [nwaku] QUIC test and metric requirement
  • [js-waku] consolidate headless-tests and browser-tests packages
  • [js-waku] add nwaku-style logs for browser simulations