[PROPOSED] xxB-2025-004: Add xx network to other wallets with existing substrate support

Grants and Bounties
1

xxB-2025-004: Add xx network to other wallets with existing substrate support

The goal of this bounty is to add xx to wallets which already have substrate or polkadot support.

Prize Pool & Award Notes/Restrictions

  • Total Prize: ~$25,000 USD in xx equivalent
  • Total Pool of 3,000,000 xx.
  • Total determined by token average over 2 week period after milestone submission.
  • Token lockups may be required depending on your proposal/submission.
  • KYC may be required.
  • Submitter may opt for a flat xx rate up front.

Milestone (100%): Accepted Merge

You are eligible for award as soon as your MR or PR is accepted into the mainline dev branch of the target wallet.

3

Talisman Integration - Implementation Progress

Working on the Talisman Wallet integration (bounty xxB-2025-004).

Progress Overview: ~65% Complete

Work Packages

Chaindata Configuration (100%)

  • Network metadata implementation

  • Chain specifications

  • Asset definitions

  • Build validation successful

Infrastructure Setup (100%)

  • RPC endpoint integration: rpc.xx.network, xxnetwork-rpc.n.dwellir.com

  • Block explorer configuration: explorer.xx.network, xx.subscan.io

  • Logo assets (SVG, 223KB)

  • TypeScript definitions

Integration & Testing (30%)

  • Talisman extension integration layer

  • Multi-RPC failover logic with exponential backoff and circuit breaker pattern

  • WebSocket connection handling with resilience: 5s timeout, health monitoring (5s intervals), error classification (retryable vs non-retryable)

  • Error boundary implementation with structured error handling

  • Wallet operation flows (signing, balance queries, transactions)

  • Cross-chain compatibility verification

  • Wallet generation using sleevage-tools (3 mnemonics: quantum, sleeve, polkadotjs)

Quality Assurance & Deployment (0%)

  • End-to-end testing suite

  • Edge case validation

  • Performance optimization

  • Final PR preparation

Technical Implementation

Core chaindata integration complete. Now working on robust RPC infrastructure with production-ready resilience patterns and Talisman-specific wallet operations.

RPC Resilience Strategy

Implemented based on comprehensive testing:

  • Fast failure detection: 5s timeout (validated in production)

  • Exponential backoff with jitter for reconnection

  • Circuit breaker: 5 failed attempts → 60s cooldown

  • Error classification: retryable (ECONNREFUSED, ETIMEDOUT) vs non-retryable (invalid genesis hash)

  • Continuous health monitoring

Performance Targets

  • Initial connection: < 1000ms

  • Reconnection: < 2000ms

  • Health check: < 500ms

  • Connection timeout: 5000ms (critical for fast failover)

Wallet Generation

Using official sleevage-tools (validator-standard):

  • 3 separate mnemonics for different use cases

  • Encrypted JSON backup with secure password

  • Battle-tested in production (validator deployment standard)

Feedback Needed

RPC Endpoints:

  • wss://rpc.xx.network

  • wss://xxnetwork-rpc.n.dwellir.com

Additional public RPCs available?

Block Explorers:

  • https://explorer.xx.network

  • https://xx.subscan.io

Correct configuration?

Logo:

223KB SVG. OK?

Next Phase

Integration testing and validation across all wallet operations. PR submission after QA completion.

Repository

Feedback welcome.

4

Thanks for this. While Talisman has support for xx already an update is needed. I took a look at what you did v. upstream, here is some feedback:

  1. assets/chains/xxnetwork.svg already exists and is optimized, no need to replace.
  2. https://xx.subscan.io is a dead link. drop
  3. ws://localhost:63007 is invalid, drop.
  4. wss://xxnetwork-rpc.n.dwellir.com - the ‘.n’ is required so far as I know, but test it and if it isn’t needed then thats ok.
  5. logo field under nativeCurrency is unnecessary. It gets picked up as it’s the coin logo.
  6. You dropped a bunch of docs files into the commit, you’ll probably need to start fresh to shepherd this through.

Over all, against upstream, I think the meaningful delta is just something like:

 - id: xxnetwork
   name: XX Network
   nativeCurrency:
     coingeckoId: xxcoin
+  blockExplorerUrls:
+    - https://explorer.xx.network
   chainspecQrUrl: https://metadata.novasama.io/qr/xxnetwork_specs.png
   latestMetadataQrUrl: https://metadata.novasama.io/qr/xxnetwork_metadata_latest.apng
   rpcs:
-    - wss://rpc.xx.network/
+    - wss://rpc.xx.network
+    - wss://xxnetwork-rpc.n.dwellir.com

If you can shepherd this through the Talisman folks then we will definitely still pay 8000xx (~500 USD as of this writing).

Thanks!