
Viet Anh Mai developed and maintained the Koniverse/SubWallet-Extension, delivering over 70 features and numerous stability improvements across 17 months. He engineered robust cross-chain asset management, staking, and swap capabilities, focusing on reliability, onboarding, and user experience. His work included backend and frontend development using TypeScript, JavaScript, and React, with deep integration of blockchain protocols and APIs. He implemented CI/CD pipelines, optimized release management, and ensured scalable dependency and configuration management. By refining transaction flows, enhancing multi-chain support, and standardizing SDK and library upgrades, Viet Anh Mai enabled seamless, secure, and extensible wallet operations for a diverse blockchain ecosystem.

February 2026 Monthly Summary for Koniverse/SubWallet-Extension: Delivered stability improvements and introduced Multisig Account Phase 1 support. Upgraded critical dependency to @subwallet/chain-list to ensure compatibility and reliability across the SubWallet extension, culminating in version 1.3.74 release.
February 2026 Monthly Summary for Koniverse/SubWallet-Extension: Delivered stability improvements and introduced Multisig Account Phase 1 support. Upgraded critical dependency to @subwallet/chain-list to ensure compatibility and reliability across the SubWallet extension, culminating in version 1.3.74 release.
January 2026 monthly summary for Koniverse/SubWallet-Extension: Key features delivered, major fixes, and business impact. Focused on stability, expanded chain support, and UI/UX improvements that drive reliability and user value. Highlights include dependency upgrades for stability and features; Proxy Account support with chain-list enhancements and ParaSpell V5 migration; removal of Crowdloans tab with parachain earnings retrieval bug fix.
January 2026 monthly summary for Koniverse/SubWallet-Extension: Key features delivered, major fixes, and business impact. Focused on stability, expanded chain support, and UI/UX improvements that drive reliability and user value. Highlights include dependency upgrades for stability and features; Proxy Account support with chain-list enhancements and ParaSpell V5 migration; removal of Crowdloans tab with parachain earnings retrieval bug fix.
December 2025 monthly summary for Koniverse/SubWallet-Extension. Focused on delivering high-value features, stability improvements, and release readiness across the extension. Key outcomes include OpenGov integration with UX enhancements, token enabling improvements, and Trust Wallet import support; Module Price History standardization with locked balances display and Transak Widget URL update; security UX adjustments by toggling off advanced phishing detection; and reliability gains from SubWallet chain-list upgrades to latest stable versions. Release housekeeping and QA readiness were strengthened through environment/test token adjustments and SDK bumps, supported by a sequence of versioned releases (1.3.68–1.3.71). Overall, these efforts improved user experience, data transparency, and ecosystem stability while enabling faster, more predictable releases.
December 2025 monthly summary for Koniverse/SubWallet-Extension. Focused on delivering high-value features, stability improvements, and release readiness across the extension. Key outcomes include OpenGov integration with UX enhancements, token enabling improvements, and Trust Wallet import support; Module Price History standardization with locked balances display and Transak Widget URL update; security UX adjustments by toggling off advanced phishing detection; and reliability gains from SubWallet chain-list upgrades to latest stable versions. Release housekeeping and QA readiness were strengthened through environment/test token adjustments and SDK bumps, supported by a sequence of versioned releases (1.3.68–1.3.71). Overall, these efforts improved user experience, data transparency, and ecosystem stability while enabling faster, more predictable releases.
Monthly summary for 2025-11 focusing on delivering core library stability, cross-chain capabilities, and network reliability across two repositories. Highlights include core library cleanup, multichain asset and cross-chain enhancements, and Proxy Account improvements, plus the addition of stable network configurations to enable stable deployments.
Monthly summary for 2025-11 focusing on delivering core library stability, cross-chain capabilities, and network reliability across two repositories. Highlights include core library cleanup, multichain asset and cross-chain enhancements, and Proxy Account improvements, plus the addition of stable network configurations to enable stable deployments.
October 2025 — Koniverse/SubWallet-Extension: Delivered stability improvements, cross-chain capabilities, and in-app staking features across releases 1.3.60–1.3.63. Focused on business value: stability, security, and user experience through chain-list upgrades, mainnet feature rollouts, and targeted bug fixes, enabling broader asset support and smoother user interactions.
October 2025 — Koniverse/SubWallet-Extension: Delivered stability improvements, cross-chain capabilities, and in-app staking features across releases 1.3.60–1.3.63. Focused on business value: stability, security, and user experience through chain-list upgrades, mainnet feature rollouts, and targeted bug fixes, enabling broader asset support and smoother user interactions.
Concise monthly summary for Sep 2025 highlighting key business and technical achievements across Koniverse SubWallet extensions. Focus areas include feature delivery, stability improvements, and security/quality enhancements that directly impact user reliability, cross-chain capabilities, and developer efficiency.
Concise monthly summary for Sep 2025 highlighting key business and technical achievements across Koniverse SubWallet extensions. Focus areas include feature delivery, stability improvements, and security/quality enhancements that directly impact user reliability, cross-chain capabilities, and developer efficiency.
August 2025 recap: Delivered cross-chain expansion and reliability improvements across Koniverse SubWallet projects, enabling broader network reach and smoother onboarding. Coordinated five releases across Static Content and Extension, focusing on ledger-network expansion, chain-list upgrades, TAO/ Coinbase enhancements, Bitcoin swap improvements, and tBTC/WalletConnect multi-chain support, with localization cleanups and versioning. Key deliveries: - Ledger Multi-Chain Network Support Expansion: Expanded ledger-generic-allow-chains to include new chain IDs, enabling interaction with additional networks. - Chain List Dependency Upgrade: Upgraded @subwallet/chain-list to 0.2.112 (including beta.9) with patch changes and yarn.lock updates to support new chains and fixes. - TAO earning refactor, Coinbase on-ramp, and backend versioning: Refactored TAO earning position logic, improved Coinbase on-ramp, applied versioning for backend requests, and fixed withdrawals and WalletConnect network support. - Bitcoin swap enhancements and fixes: Improved Bitcoin swap functionality, updated validator UI, fixed WalletConnect connection issues, and addressed bugs in account import, custom fees, and Ledger connectivity. - Expanded multi-chain support and WalletConnect improvements: Expanded swap/validator support across more chains, introduced tBTC bridging, updated release 1.3.54 with i18n cleanup and changelog updates. Impact: - Broadened user reach with multi-chain and on-ramp capabilities; improved reliability of WalletConnect and Ledger interactions; stabilized dependency management and release hygiene; accelerated future feature delivery through upstream chain-list improvements. Technologies/skills demonstrated: - TypeScript/JavaScript, Yarn-based dependency management, release engineering, Ledger integration, WalletConnect, tBTC bridging, cross-chain orchestration, i18n/localization cleanup.
August 2025 recap: Delivered cross-chain expansion and reliability improvements across Koniverse SubWallet projects, enabling broader network reach and smoother onboarding. Coordinated five releases across Static Content and Extension, focusing on ledger-network expansion, chain-list upgrades, TAO/ Coinbase enhancements, Bitcoin swap improvements, and tBTC/WalletConnect multi-chain support, with localization cleanups and versioning. Key deliveries: - Ledger Multi-Chain Network Support Expansion: Expanded ledger-generic-allow-chains to include new chain IDs, enabling interaction with additional networks. - Chain List Dependency Upgrade: Upgraded @subwallet/chain-list to 0.2.112 (including beta.9) with patch changes and yarn.lock updates to support new chains and fixes. - TAO earning refactor, Coinbase on-ramp, and backend versioning: Refactored TAO earning position logic, improved Coinbase on-ramp, applied versioning for backend requests, and fixed withdrawals and WalletConnect network support. - Bitcoin swap enhancements and fixes: Improved Bitcoin swap functionality, updated validator UI, fixed WalletConnect connection issues, and addressed bugs in account import, custom fees, and Ledger connectivity. - Expanded multi-chain support and WalletConnect improvements: Expanded swap/validator support across more chains, introduced tBTC bridging, updated release 1.3.54 with i18n cleanup and changelog updates. Impact: - Broadened user reach with multi-chain and on-ramp capabilities; improved reliability of WalletConnect and Ledger interactions; stabilized dependency management and release hygiene; accelerated future feature delivery through upstream chain-list improvements. Technologies/skills demonstrated: - TypeScript/JavaScript, Yarn-based dependency management, release engineering, Ledger integration, WalletConnect, tBTC bridging, cross-chain orchestration, i18n/localization cleanup.
July 2025 Monthly Summary: Delivered foundational reliability, standardized initialization, and expanded asset coverage across Koniverse/SubWallet-Extension with supportive improvements in CI, developer tooling, and platform readiness. Also completed user-facing identity and asset UX fixes and platform upgrades to enable scale and future integrations across related content.
July 2025 Monthly Summary: Delivered foundational reliability, standardized initialization, and expanded asset coverage across Koniverse/SubWallet-Extension with supportive improvements in CI, developer tooling, and platform readiness. Also completed user-facing identity and asset UX fixes and platform upgrades to enable scale and future integrations across related content.
June 2025 monthly performance summary for Koniverse/SubWallet-Extension focused on reliability, performance, and scalable feature delivery. Key outcomes include: refined extension startup lifecycle with granular start sequences and readiness handling to reduce resource waste and prevent conflicts; improved transaction UI responsiveness via debounced input watching and focus management to reduce unnecessary re-renders; stabilized Bitcoin integration with cached block time for fee-rate estimation and new Bitcoin accounts support; targeted stability fixes on Home/Earning screens to resolve loading failures; and CI/CD workflow optimization to cut redundant pipeline runs by removing unnecessary branches. Collectively, these efforts enhance user experience, reliability, and release velocity while enabling broader asset support (Asset Hub Testnet, TAO On-ramp, Buy & Sell updates) across releases 1.3.41-1.3.43.
June 2025 monthly performance summary for Koniverse/SubWallet-Extension focused on reliability, performance, and scalable feature delivery. Key outcomes include: refined extension startup lifecycle with granular start sequences and readiness handling to reduce resource waste and prevent conflicts; improved transaction UI responsiveness via debounced input watching and focus management to reduce unnecessary re-renders; stabilized Bitcoin integration with cached block time for fee-rate estimation and new Bitcoin accounts support; targeted stability fixes on Home/Earning screens to resolve loading failures; and CI/CD workflow optimization to cut redundant pipeline runs by removing unnecessary branches. Collectively, these efforts enhance user experience, reliability, and release velocity while enabling broader asset support (Asset Hub Testnet, TAO On-ramp, Buy & Sell updates) across releases 1.3.41-1.3.43.
May 2025 focused on expanding cross-chain swap capabilities, broadening DeFi integrations, and refining the extension UX. Key outcomes include enabling Bridge-Swap cross-chain swaps for EVM with two release updates (1.3.37 and 1.3.38) along with a Cardano Foundation feedback bug fix; integrating DeFi aggregators (KyberSwap Aggregator and UniswapX Dutch Swap) with price/chart fixes; UI enhancements for SubWallet Extension (side panel support and improved price-chart padding); and a critical DApp connectivity fix (issue #4401). These efforts expanded liquidity reach, improved price visibility for derivation tokens, and reduced onboarding friction, delivering business value through a stable 1.3.x release series.
May 2025 focused on expanding cross-chain swap capabilities, broadening DeFi integrations, and refining the extension UX. Key outcomes include enabling Bridge-Swap cross-chain swaps for EVM with two release updates (1.3.37 and 1.3.38) along with a Cardano Foundation feedback bug fix; integrating DeFi aggregators (KyberSwap Aggregator and UniswapX Dutch Swap) with price/chart fixes; UI enhancements for SubWallet Extension (side panel support and improved price-chart padding); and a critical DApp connectivity fix (issue #4401). These efforts expanded liquidity reach, improved price visibility for derivation tokens, and reduced onboarding friction, delivering business value through a stable 1.3.x release series.
April 2025 delivered a comprehensive multi-chain extension upgrade for Koniverse/SubWallet-Extension, expanding asset visibility, cross-chain interoperability, and user experience. Key outcomes include derivative token value display with dTAO support, automated EVM balance detection, enhanced cross-chain swaps and staking, XCM improvements and cross-bridge capabilities, and Cardano CIP-30 support with EVM swap-bridge and subnet staking fixes. All changes were released in a series of versioned updates (1.3.28–1.3.32), with additional UX refinements (price chart and updated support contact). The work reduced friction for users, broadened asset coverage, and strengthened cross-chain liquidity and reliability.
April 2025 delivered a comprehensive multi-chain extension upgrade for Koniverse/SubWallet-Extension, expanding asset visibility, cross-chain interoperability, and user experience. Key outcomes include derivative token value display with dTAO support, automated EVM balance detection, enhanced cross-chain swaps and staking, XCM improvements and cross-bridge capabilities, and Cardano CIP-30 support with EVM swap-bridge and subnet staking fixes. All changes were released in a series of versioned updates (1.3.28–1.3.32), with additional UX refinements (price chart and updated support contact). The work reduced friction for users, broadened asset coverage, and strengthened cross-chain liquidity and reliability.
Concise monthly summary for 2025-03 focusing on key accomplishments, business value, and technical achievements for Koniverse/SubWallet-Extension.
Concise monthly summary for 2025-03 focusing on key accomplishments, business value, and technical achievements for Koniverse/SubWallet-Extension.
February 2025 monthly summary for Koniverse/SubWallet-Extension focusing on delivering feature-rich capabilities, stability improvements, and cross-network token support. Outcome: improved user experience, reliability, and business value through targeted bug fixes and incremental releases.
February 2025 monthly summary for Koniverse/SubWallet-Extension focusing on delivering feature-rich capabilities, stability improvements, and cross-network token support. Outcome: improved user experience, reliability, and business value through targeted bug fixes and incremental releases.
January 2025 monthly summary for Koniverse/SubWallet-Extension. Delivered three releases (1.3.12–1.3.14) that expanded core capabilities and reliability: cross-chain功能 including ETH <-> POS bridging, Bifrost Liquid Staking referral, and Avail Recovery app; enhanced token search and signing metadata flow; and updated chain list with CERE staking support plus a formal release tag. These efforts improved user onboarding, feature parity across the extension, and release reliability, driving business value through richer functionality and robust delivery.
January 2025 monthly summary for Koniverse/SubWallet-Extension. Delivered three releases (1.3.12–1.3.14) that expanded core capabilities and reliability: cross-chain功能 including ETH <-> POS bridging, Bifrost Liquid Staking referral, and Avail Recovery app; enhanced token search and signing metadata flow; and updated chain list with CERE staking support plus a formal release tag. These efforts improved user onboarding, feature parity across the extension, and release reliability, driving business value through richer functionality and robust delivery.
December 2024 monthly summary: Delivered targeted cross-network and performance improvements across SubWallet modules, delivering stronger multi-chain interoperability, faster NFT data access, and more reliable token transfers.
December 2024 monthly summary: Delivered targeted cross-network and performance improvements across SubWallet modules, delivering stronger multi-chain interoperability, faster NFT data access, and more reliable token transfers.
Month: 2024-11 — Focused on developer experience, network coverage, and stability for Koniverse/SubWallet-Extension. Highlights: (1) API contribution guidelines updated in README to distinguish simple APIs as functions and complex APIs as objects, improving onboarding and contribution quality. (2) Expanded chain-list to support new networks (Polygon Amoy, Polygon zkEVM Cardona, Gnosis, Autonomys Mainnet) across releases 1.3.6 and 1.3.7, with improvements to collators and online block actions. (3) Two formal releases (1.3.6 and 1.3.7) ensuring stable, versioned delivery. (4) Core bug fixes: Pool field auto-reset and Polkadot Asset Hub transaction re-checking, boosting reliability. Business impact: faster external contributions, broader user coverage, and more dependable transaction processing.
Month: 2024-11 — Focused on developer experience, network coverage, and stability for Koniverse/SubWallet-Extension. Highlights: (1) API contribution guidelines updated in README to distinguish simple APIs as functions and complex APIs as objects, improving onboarding and contribution quality. (2) Expanded chain-list to support new networks (Polygon Amoy, Polygon zkEVM Cardona, Gnosis, Autonomys Mainnet) across releases 1.3.6 and 1.3.7, with improvements to collators and online block actions. (3) Two formal releases (1.3.6 and 1.3.7) ensuring stable, versioned delivery. (4) Core bug fixes: Pool field auto-reset and Polkadot Asset Hub transaction re-checking, boosting reliability. Business impact: faster external contributions, broader user coverage, and more dependable transaction processing.
Monthly summary for 2024-10 focused on delivering cross-network capabilities, reliability improvements, and expanded asset support for Koniverse/SubWallet-Extension. Highlights include major release cycles that extended network coverage, token standards support, and refined data handling, driving user value and platform stability.
Monthly summary for 2024-10 focused on delivering cross-network capabilities, reliability improvements, and expanded asset support for Koniverse/SubWallet-Extension. Highlights include major release cycles that extended network coverage, token standards support, and refined data handling, driving user value and platform stability.
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