April 2025
May 2025
June 2025
📊 Summary ⚙️ Technical 🔍 Research

Technical Activity Report

May 2025

May 2025 focused on UX refinement and production readiness across Greymass products. Unicove received comprehensive light theme implementation, contract deployment tooling, and enhanced transaction readability through action summaries. Web Authenticator advanced toward production with mnemonic recovery and Ledger hardware wallet integration. Anchor Mobile Android saw intensive maintenance with 17 PRs addressing stability issues and Vaulta migration. WharfKit ecosystem expanded with two new wallet plugins (Ledger, imToken) supporting diverse security models and regional preferences. The month delivered 41 PRs emphasizing polish, accessibility, and production deployment preparation.

Key Achievements:

  • Completed Vaulta rebrand across mobile applications and WharfKit SDK
  • Added light theme to Unicove with automatic OS preference detection
  • Added contract deployment tools to Unicove enabling graphical smart contract uploads
  • Improved transaction readability in Unicove with human-readable action summaries
  • Prototyped mnemonic recovery for Web Authenticator enabling seed phrase backup
  • Added Ledger hardware wallet support to Web Authenticator
  • Created WharfKit wallet plugins for Ledger and imToken expanding wallet options

Technical Significance: May completed strategic Vaulta rebrand across the entire stack from SDK (wharfkit/common) to mobile applications, demonstrating coordinated multi-repository deployment. Web Authenticator advanced significantly toward production readiness with recovery mechanisms and hardware wallet integration coordinated with new WharfKit plugins. Light theme and action summaries significantly improve accessibility and mainstream usability. The synchronized bug fix across Web Authenticator and wharfkit/webauthn demonstrates mature cross-repository maintenance practices.

Table of Contents

Cross-Repository Insights

Coordinated Vaulta Rebrand Across Ecosystem

Integration: Vaulta rebrand implemented across wharfkit/common, greymass/unicove, and greymass/anchor-mobile-android ensuring consistent network identity.

Technical Relationship: WharfKit Common provides canonical blockchain configuration data consumed by applications. Vaulta rebrand required coordinated updates across SDK and all consuming applications.

How They Work Together:

  • WharfKit Common (PR #4): Adds Vaulta chain definition with metadata, endpoints, and token information
  • Unicove (PR #430, April): Consumes wharfkit/common configuration for Vaulta network support
  • Anchor Android (PR #728): Updates network selection and display to use Vaulta branding
  • Coordinated Deployment: SDK update enables all consuming applications to support Vaulta consistently

Deployment Flow:

  1. wharfkit/common PR #4 adds Vaulta chain configuration (May 8)
  2. Applications update dependencies to new wharfkit/common version
  3. Vaulta appears consistently across all WharfKit-powered applications
  4. Mobile and web interfaces show matching network identity

Benefit: Centralized configuration prevents branding inconsistencies across ecosystem. Users see consistent Vaulta identity whether using Unicove, Anchor, or third-party WharfKit applications. Single source of truth pattern ensures synchronized network metadata across all tools.

Technical Details:

  • WharfKit Common: PR #4 (link)
  • Unicove: PR #430 from April (link)
  • Anchor Android: PR #728 (link)
  • See April 2025 for initial Unicove Vaulta rebrand

Web Authenticator ↔ WharfKit Ledger Plugin Integration

Integration: Web Authenticator integrates wharfkit/wallet-plugin-ledger enabling hardware wallet signing within cloud wallet interface.

Technical Relationship: Web Authenticator acts as wallet interface. WharfKit Ledger plugin provides hardware wallet connectivity and signing. Integration combines cloud wallet convenience with hardware security.

How They Work Together:

  • WharfKit Ledger Plugin: Implements hardware wallet transport (WebUSB, WebHID, WebBLE) and signing logic
  • Web Authenticator (PR #38): Integrates Ledger plugin adding hardware wallet option to interface
  • User Flow: Users choose Ledger signing method → Web Authenticator delegates to plugin → Plugin communicates with hardware device → Transaction signed by Ledger

Transport Support:

  • Desktop: WebUSB and WebHID for direct USB/Bluetooth connection
  • Mobile: WebBLE for Bluetooth Ledger connectivity
  • Node.js: node-hid for server-side applications

Benefit: Bridges convenience and security by offering hardware wallet option within no-download cloud wallet. Users can start with WebAuthn (convenient) and upgrade to Ledger (maximum security) without changing wallets. Critical for institutional users and high-value accounts requiring hardware key storage.

Technical Details:

Synchronized WebAuthn Bug Fix

Integration: Matching bug fix deployed across greymass/web-authenticator and wharfkit/webauthn ensuring consistent credential creation behavior.

Technical Relationship: Web Authenticator uses wharfkit/webauthn library for WebAuthn operations. A typo in createPublic flags affected both repositories requiring synchronized fixes.

How They Work Together:

  • Shared Bug: Typo in credential creation flags existed in both implementations
  • Web Authenticator (PR #35): Fixed createPublic flags typo in local implementation
  • WharfKit WebAuthn (PR #1): Fixed identical typo in shared library
  • Coordinated Merge: Both PRs merged ensuring consistent behavior across codebase

Bug Impact: Typo affected WebAuthn credential generation reliability. Synchronized fix prevents behavior divergence between Web Authenticator’s internal implementation and shared library.

Benefit: Demonstrates mature cross-repository maintenance. Bugs affecting multiple repos are tracked and fixed in coordination preventing inconsistencies. Ensures Web Authenticator and any other wharfkit/webauthn consumers have matching credential creation behavior.

Technical Details:

  • Web Authenticator: PR #35 (link)
  • WharfKit WebAuthn: PR #1 (link)
  • Both merged May 30, 2025

WharfKit Wallet Plugin Ecosystem Expansion

Integration: Two new WharfKit wallet plugins (Ledger, imToken) expand wallet options available to all WharfKit-powered applications.

Technical Relationship: WharfKit’s plugin architecture enables modular wallet support. Each plugin implements standard SessionKit interfaces allowing applications to support new wallets without code changes.

How They Work Together:

  • WharfKit SessionKit: Defines standard wallet plugin interfaces
  • Ledger Plugin: Implements hardware wallet signing via multiple transport methods
  • imToken Plugin: Implements mobile wallet integration popular in Asian markets
  • Application Integration: Any WharfKit application can add these plugins gaining instant wallet support

Plugin Architecture Benefits:

  • Modular: New wallets added as plugins without framework changes
  • Consistent: All wallets implement same interfaces providing uniform UX
  • Decoupled: Wallet logic separated from application code
  • Extensible: Third parties can create additional wallet plugins

Benefit: Expands user choice across entire WharfKit ecosystem. Applications using WharfKit SessionKit can support Ledger (hardware security) and imToken (mobile convenience, regional preference) by adding plugins. Demonstrates value of plugin architecture - ecosystem-wide capability expansion through modular additions.

Technical Details:

greymass/unicove

Repository: https://github.com/greymass/unicove
Previous Context: See April 2025 for token swap (DEX) functionality, Vaulta rebrand, and Storyblok CMS integration.

Activity This Month: 18 PRs merged

Changes This Month

May delivered major UX improvements building on April’s feature development. Light theme implementation provides accessibility and comfort in bright environments. Contract upload functionality empowers developers with graphical deployment tools. Action summaries transform technical transaction data into readable descriptions. Dynamic Open Graph images optimize social sharing and SEO.

Pull Requests

Major Changes

#447 - style: add light theme (link)
Merged: 2025-05-13

Description: Comprehensive light theme implementation with automatic OS preference detection and manual override toggle in settings. Added semantic color roles for success/error states and refined button contrast.

Impact: Major accessibility improvement providing comfortable viewing in bright environments. OS detection ensures appropriate default theme without configuration. Semantic colors (green=success, red=error) improve visual communication throughout interface.

Technical Details:

  • Automatic prefers-color-scheme detection
  • Settings toggle for manual override
  • Complete color palette for light mode
  • Semantic color roles (success, error)
  • Contrast refinements for outlined buttons and sidemenu

Related: PR #466 refined light mode palette, PR #478 updated chart colors for proper contrast.

#451 - Added basic abi/wasm uploading (link)
Merged: 2025-05-03

Description: Initial smart contract upload functionality allowing users to upload ABI and WASM files for contract deployment directly through Unicove interface.

Impact: Lowers barrier to entry for contract deployment by eliminating command-line tool requirements. Developers can deploy smart contracts through graphical interface.

Related PRs:

  • PR #453: Moved upload to standalone /upload page supporting any account
  • PR #454: Always show upload button when session exists
  • PR #487: Dashed outline upload zone for clear dropzone indication

#456 - Action summaries (link)
Merged: 2025-05-14

Description: Implemented human-readable action summaries transforming technical blockchain action data into plain language descriptions.

Impact: Major readability improvement enabling non-technical users to understand transaction contents. Critical for mainstream adoption - users need to understand what they’re signing before authorizing transactions.

Related: PR #460 enhanced summaries with structured table context for complex data.

#467 - feat: dynamic og images (link)
Merged: 2025-05-19

Description: Dynamic Open Graph image generation for social media sharing. OG image data serialized into URI, API route proxies to unicove-og-image-gen service, returns context-specific generated image.

Impact: Significant SEO and social media improvement. Shared links on Twitter, Discord, Telegram display rich previews with page-specific content (account names, transaction IDs, block numbers). Improves click-through rates and professional appearance.

Technical Details: Each page generates custom OG metadata, API endpoint proxies to image generation service, dynamic images reflect current page content.

#466 - Theme updates (link)
Merged: 2025-05-23

Description: Refined light mode color palette based on testing. Renamed tertiary button to text button for clarity. Applied color roles consistently throughout interface. Fixed WAX logo light mode appearance.

Impact: Polish and refinement of PR #447 light theme. Better naming conventions improve code clarity. Consistent color role usage creates professional appearance across themes.

#464 - style: updated homepage hero (link)
Merged: 2025-05-14

Description: Redesigned homepage hero section with updated visual treatment and content.

Impact: Improves first impression for new visitors. Modern hero design better communicates Unicove’s value proposition.

Minor Changes

Contract Upload Refinements:

  • #453: Moved upload contract to standalone page (link) - Dedicated /upload workflow (merged 2025-05-03)
  • #454: Always show upload button if user session exists (link) - Improved discoverability (merged 2025-05-03)

Action Summaries Enhancement:

  • #460: Action summaries table context (link) - Structured data presentation (merged 2025-05-06)

UI/UX Improvements:

  • #469: Activity Structure Improvements (link) - Refactored activity data structure (merged 2025-05-20)
  • #461: Swap notice on system contract function pages (link) - Directs users to swap interface for RAM trading (merged 2025-05-13)
  • #438: refactor: pageheader actions (link) - Page-specific header actions (merged 2025-05-02)
  • #450: feat: add automatic icon for external button links (link) - External link indicators (merged 2025-05-03)
  • #473: Transaction header styles (link) - Grid layout for mobile responsiveness (merged 2025-05-23)
  • #478: Chart style updates (link) - Semantic colors (green/red) for charts (merged 2025-05-26)
  • #487: revert: disabled button styles (link) - Solid background disabled states (merged 2025-05-29)

Localization:

  • #449: Localize pass + fixes (link) - Translation refinements (merged 2025-05-02)
  • #422: New Crowdin Translations (link) - Community translations (merged 2025-05-03)
  • #459: New Crowdin Translations (link) - Community translations (merged 2025-05-14)

Release PRs:

  • #446: Next Release (link) - Release (merged 2025-05-03)
  • #455: Next Release (link) - Release (merged 2025-05-07)
  • #462: Next Release (link) - Release (merged 2025-05-08)
  • #470: Next Release (link) - Release (merged 2025-05-20)

Technical Context

May represented UX refinement and polish month building on April’s swap functionality and Vaulta rebrand:

  1. Accessibility: Light theme implementation (PRs #447, #466, #478) demonstrates commitment to user comfort and accessibility in varying lighting conditions.

  2. Developer Empowerment: Contract upload (PRs #451, #453, #454, #487) provides graphical deployment workflow eliminating command-line tool requirements.

  3. Transaction Transparency: Action summaries (PRs #456, #460) transform technical data into readable descriptions enabling informed user consent.

  4. Marketing Optimization: Dynamic OG images (PR #467) improve social sharing and SEO with context-specific preview images.

  5. UI Polish: Multiple refinements (PRs #464, #469, #473, #438, #450) improve visual hierarchy and user experience.

The 18 PRs demonstrate sustained development velocity focused on user experience improvements and production polish. Work builds on April’s feature development creating accessible, developer-friendly, professional interface.

greymass/web-authenticator

Repository: https://github.com/greymass/web-authenticator
Previous Context: See April 2025 for dashboard, security handshakes, and MetaKeep integration.

Activity This Month: 4 PRs merged

Changes This Month

May advanced Web Authenticator toward production deployment with critical recovery and security features. Mnemonic recovery provides account restoration capability essential for production use. Ledger hardware wallet integration expands security options. HTTPS local development enables proper WebAuthn testing. Bug fixes improve reliability.

Pull Requests

#26 - recovery mnemonic words (link)
Merged: 2025-05-12

Description: Implemented BIP39 mnemonic phrase recovery allowing users to restore accounts using seed phrases. Users can back up accounts with 12/24 word phrases and restore on new devices or after data loss.

Impact: Critical production readiness milestone. Mnemonic recovery provides familiar, industry-standard account restoration method. Essential for production deployment - users need recovery mechanism to confidently adopt wallet. Complements WebAuthn convenience with traditional crypto recovery approach.

Technical Details: BIP39 standard generates mnemonic from account key entropy. Recovery flow accepts mnemonic to derive keys and restore account on new device/browser.

#38 - adding-ledger-plugin into master (link)
Merged: 2025-05-24

Description: Integrated Ledger hardware wallet plugin enabling Web Authenticator users to sign transactions with Ledger devices. Provides hardware wallet security option within cloud wallet interface.

Impact: Bridges convenience and maximum security. Users can combine cloud wallet ease-of-use with Ledger hardware security. Attractive to institutional users and high-net-worth individuals requiring hardware key storage.

Related: Works with wharfkit/wallet-plugin-ledger repository created May 6.

Technical Details: Supports multiple transport methods (WebUSB, WebHID, WebBLE) for connecting Ledger devices across platforms.

#30 - use https local development (link)
Merged: 2025-05-09

Description: Configured local development environment to use HTTPS enabling proper WebAuthn API testing during development.

Impact: Improves developer experience. WebAuthn APIs require secure contexts (HTTPS). Local HTTPS enables testing authentication flows without deploying to production, enabling rapid iteration.

#35 - fix webauthn create public flags typo (link)
Merged: 2025-05-16

Description: Fixed typo in WebAuthn public key creation flags causing potential credential generation issues.

Impact: Critical bug fix ensuring reliable WebAuthn operation. Typo could cause credential creation failures.

Related: Matching fix submitted to wharfkit/webauthn library (PR #1).

#39 - fix: use allAccounts instead of accounts in accountsNotBackedUp (link)
Merged: 2025-05-31

Description: Fixed backup detection logic to check all accounts instead of subset. Ensures backup prompts correctly identify unprotected accounts.

Impact: Improves reliability of backup warnings. Users receive accurate prompts to back up vulnerable accounts, reducing risk of account loss.

Technical Context

May completed critical production readiness features:

  1. Account Recovery: Mnemonic recovery (PR #26) essential for production deployment. Users can restore accounts after device loss or browser data clearing.

  2. Hardware Security: Ledger integration (PR #38) provides maximum security option for high-value accounts while maintaining cloud wallet convenience.

  3. Developer Experience: HTTPS development (PR #30) enables proper WebAuthn testing during development.

  4. Reliability: Bug fixes (PRs #35, #39) ensure WebAuthn credential creation and backup detection work correctly.

Combined with April’s dashboard and security protocols, Web Authenticator approaches production-ready state with complete feature set for safe deployment.

greymass/anchor-mobile-android

Repository: https://github.com/greymass/anchor-mobile-android
Previous Context: See April 2025 for stability improvements and network rebranding. See March 2025 for Android 10 compatibility fixes and Crashlytics integration.

Activity This Month: 17 PRs merged to dev branch

Changes This Month

May saw high-activity maintenance sprint with 17 PRs addressing stability issues, Vaulta migration, and accumulated technical debt. Work included memory leak fixes, authentication hang prevention, key management improvements, translation fixes, and UI refinements.

Pull Requests

#728 - Vaulta migration (link)
Merged: 2025-05-07

Description: Implemented Vaulta rebrand throughout Android app. Renamed EOS to Vaulta in UI, configuration, and network lists matching April’s Unicove rebrand.

Impact: Maintains brand consistency across products. Android users see Vaulta branding matching web interfaces. Reflects network evolution and new identity.

Related: Coordinates with wharfkit/common PR #4 (Vaulta chain definition) and April’s Unicove Vaulta rebrand (PR #430).

#739 - Remove listener when AnchorCamera is detached to prevent memory leaks (link)
Merged: 2025-05-02

Description: Fixed memory leak in camera component by properly removing listeners when component detaches.

Impact: Improves app stability and performance. Memory leaks cause gradual performance degradation and potential crashes. Proper listener cleanup essential for long-term stability.

#740 - Fix JS hang during authentication due to page recycled (link)
Merged: 2025-05-06

Description: Fixed JavaScript hang occurring when authentication page destroyed during biometric/PIN prompt. Android can recycle activities during authentication causing callback loss. Manually terminates authentication if page recycled.

Impact: Critical reliability fix preventing app hangs during authentication. Ensures authentication process completes or fails gracefully rather than hanging indefinitely.

#730 - collect privateKey.toPublic() error (link)
Merged: 2025-05-02

Description: Added error collection for privateKey.toPublic() failures to diagnose rare issue where key generation succeeds but public key derivation fails.

Impact: Temporary diagnostic code enabling understanding of mysterious key handling issue. Helps diagnose rare, difficult-to-reproduce bug preventing proper fixes.

Related: Issue #731

#741 - Add await to getPrivateKey call in retrievePrivateKey (link)
Merged: 2025-05-06

Description: Fixed missing await on async getPrivateKey call causing timing issues in key retrieval.

Impact: Prevents race conditions in key retrieval. Missing await can cause undefined behavior and intermittent failures. Proper async handling ensures reliable key access.

#734 - Allowing users to delete accounts for which an OKC was not generated (link)
Merged: 2025-05-06

Description: Fixed issue preventing deletion of accounts without OKC (Owner Key Certificate). Users can now remove accounts even if OKC generation failed.

Impact: Removes user frustration with stuck accounts. OKC generation failure shouldn’t prevent account deletion. Provides escape hatch for accounts in invalid states.

Related: Closes issue #713

#735 - Never deleting keys (link)
Merged: 2025-05-06

Description: Changed key management behavior to never delete keys, preserving them even when accounts removed.

Impact: Prevents accidental key loss. Keys remain accessible even if account removed and later re-added. Conservative key retention policy protects users from data loss.

#742 - fix some cn translation (link)
Merged: 2025-05-06

Description: Fixed serious Chinese translation errors where “Transaction Request” incorrectly translated as “transaction request has expired”, significantly changing meaning.

Impact: Critical localization fix. Mistranslation changes meaning potentially confusing Chinese users about transaction status. Accurate translations essential for international user base.

Minor Changes

State and UI Fixes:

  • #743: Fix appsettings reducer date update (link) - Settings persistence fix (merged 2025-05-08)
  • #744: Make title and information icon horizontally aligned in account list page (link) - Visual alignment fix (merged 2025-05-08)
  • #729: Change the label of usePin option on Android 10 devices (link) - Platform-specific labeling (merged 2025-05-06)

Technical Context

May represented high-activity maintenance sprint addressing accumulated technical debt:

  1. Memory Management: Camera listener leak fix (PR #739) prevents gradual performance degradation.

  2. Authentication Reliability: JS hang fix (PR #740) and async key handling (PR #741) prevent authentication failures and hangs.

  3. Key Management: Never delete keys policy (PR #735) and OKC deletion fix (PR #734) protect users from data loss while allowing account cleanup.

  4. Brand Consistency: Vaulta migration (PR #728) aligns with ecosystem rebrand completing cross-platform branding update.

  5. Localization Quality: Chinese translation fixes (PR #742) ensure international users receive accurate information.

  6. Diagnostics: Error collection (PR #730) enables understanding of rare issues for future fixes.

The 17 PRs suggest focused maintenance sprint clearing backlog. High PR count demonstrates ongoing commitment to maintenance-mode products, addressing issues identified through March’s Crashlytics integration.

wharfkit/common

Repository: https://github.com/wharfkit/common
Activity: 1 PR merged

Overview

Shared utilities and constants used across WharfKit packages. Provides common types, chain definitions, and shared code enabling consistent configuration across WharfKit ecosystem.

Pull Requests

#4 - Vaulta (link)
Merged: 2025-05-08

Description: Added Vaulta chain configuration to WharfKit common library. Defines Vaulta chain metadata, endpoints, and token information enabling WharfKit applications to support Vaulta network.

Impact: Enables WharfKit-powered dapps to support Vaulta network. Central chain definition ensures consistent Vaulta support across ecosystem. Completes Vaulta rebrand at SDK level.

Related: Coordinates with greymass/unicove PR #430 (Vaulta rebrand) and anchor-mobile-android PR #728 (Vaulta migration).

Technical Context: Adding Vaulta to wharfkit/common enables all WharfKit-based applications to support rebranded network with standard configuration. Central definition pattern ensures consistency across ecosystem.

wharfkit/webauthn

Repository: https://github.com/wharfkit/webauthn
Activity: 1 PR merged

Overview

WebAuthn integration library for WharfKit enabling passwordless authentication using platform authenticators (Face ID, Touch ID, Windows Hello, hardware keys).

Pull Requests

#1 - Fix createPublic flags typo (link)
Merged: 2025-05-30

Description: Fixed typo in createPublic flags matching fix in greymass/web-authenticator PR #35.

Impact: Critical bug fix for WebAuthn credential creation. Same typo as Web Authenticator fix - ensures reliable credential generation across both implementations.

Related: Matching fix to greymass/web-authenticator PR #35.

Technical Context: Synchronized bug fix across related repositories. Typo affected both Web Authenticator and core webauthn library requiring coordinated fixes.

New Repositories

greymass/lhci-docker

Created: 2025-05-28
Repository: https://github.com/greymass/lhci-docker
Technology Stack: Docker, Lighthouse CI

Description: Docker container for Lighthouse CI performance monitoring. Containerized Lighthouse CI enables easy deployment in CI/CD pipelines for automated web performance testing.

Purpose: Web performance monitoring infrastructure. Lighthouse CI provides automated performance, accessibility, and SEO testing. Docker containerization simplifies deployment across development and production environments.

Use Case: Likely used for monitoring Unicove and other web properties’ performance metrics, ensuring performance standards maintained across deployments.

Initial Activity: Repository created May 28 with minimal initial commits.

wharfkit/wallet-plugin-ledger

Created: 2025-05-06
Repository: https://github.com/wharfkit/wallet-plugin-ledger
Status: IN DEVELOPMENT - not recommended for production use
Technology Stack: TypeScript, Ledger transport APIs (WebUSB, WebHID, WebBLE, node-hid)

Description: Ledger hardware wallet plugin for WharfKit Session Kit. Enables users to interact with Ledger hardware wallets to sign transactions through WharfKit.

Features:

  • Multiple transport methods (WebUSB, WebHID, WebBLE for mobile, node-hid for Node.js)
  • Support for EOSIO-based blockchains
  • Secure hardware signing
  • Full SessionKit integration

Impact: Brings hardware wallet security to WharfKit ecosystem. Ledger integration enables maximum security option for users requiring hardware key storage. WebBLE support enables mobile Ledger connectivity. Critical for institutional and high-value users requiring hardware security.

Related: Integrated into greymass/web-authenticator (PR #38) providing hardware wallet option in cloud wallet interface.

Technical Context: Plugin architecture enables modular wallet support. Ledger plugin provides bridge between convenient cloud wallet interfaces and maximum security hardware key storage. Multiple transport support ensures cross-platform compatibility.

wharfkit/wallet-plugin-imtoken

Created: 2025-05-20
Repository: https://github.com/wharfkit/wallet-plugin-imtoken
Technology Stack: TypeScript, imToken SDK

Description: imToken wallet plugin for WharfKit Session Kit. Browser-based plugin allowing users to connect imToken mobile wallet for transaction signing.

Features:

  • imToken mobile wallet integration
  • Standard WharfKit wallet plugin architecture
  • Browser-based connection flow
  • Mobile wallet signing

Impact: Expands WharfKit wallet support to imToken users. imToken is popular mobile wallet with significant Asian user base. Plugin enables WharfKit dapps to reach imToken’s user ecosystem expanding regional accessibility.

Technical Context: Continues WharfKit’s comprehensive wallet support strategy. Each plugin expands potential user base by supporting different wallet preferences and regional ecosystems. imToken support particularly valuable for Asian market penetration.

Development Patterns

Light Theme Implementation

Context: Comprehensive light theme implementation across Unicove with OS preference detection and manual override.

Business Need: Users work in varying lighting conditions. Dark themes common in blockchain apps, but many users prefer light themes especially in bright environments. Professional applications provide theme choice respecting user preferences.

Solution Implemented: Complete light theme infrastructure:

  • Automatic OS preference detection (prefers-color-scheme)
  • Manual override toggle in settings
  • Complete color palette for light mode
  • Semantic color roles (success=green, error=red)
  • Button style refinements for both themes
  • Network logo adjustments for light backgrounds
  • Chart color updates for proper contrast
  • Permission card background fixes

Work Completed:

Technical Impact: Major accessibility and UX improvement. Automatic OS detection provides appropriate default without configuration. Manual override respects user preferences. Semantic colors improve visual communication (green/red conventions universally understood). Professional theme implementation demonstrates commitment to polished user experience.

Architecture: Likely uses CSS custom properties (CSS variables) enabling dynamic theme switching. OS preference detection via prefers-color-scheme media query. Settings persistence enables manual override of system preference.

Links:

Contract Upload Functionality

Context: Smart contract deployment capability added directly in Unicove interface.

Business Need: Smart contract deployment typically requires command-line tools (cleos) creating barrier for developers and making deployment complex. Visual interface for contract deployment lowers barrier to entry and improves developer experience.

Technical Challenge: Contract deployment requires:

  • ABI (Application Binary Interface) file upload
  • WASM (WebAssembly) bytecode upload
  • Target account specification
  • Transaction signing with proper permissions
  • Clear feedback on success/failure

Solution Implemented: Graphical contract upload interface:

  • Basic ABI/WASM file upload capability
  • Standalone /upload page for dedicated workflow
  • Session-based visibility ensuring authenticated users see upload option
  • Upload to any account (not just user’s accounts)
  • Visual upload zone with dashed outline indicating dropzone
  • Solid background disabled states for clear visual feedback

Work Completed:

Technical Impact: Empowers developers to deploy contracts through graphical interface without command-line tools. Generic /upload endpoint supports multisig deployments and managing accounts without direct key access. Improves developer onboarding by reducing technical barriers. Continues Unicove’s evolution into comprehensive development platform.

Use Cases:

  • Solo developers deploying contracts to own accounts
  • Multisig deployments where multiple parties approve
  • Managing contracts on accounts without direct key access
  • Educational environments teaching contract development

Links:

Action Summaries for Transaction Readability

Context: Blockchain transactions contain technical action data difficult for non-technical users to understand. May implemented human-readable action summaries.

Business Need: Transaction transparency essential for user trust and security. Users must understand what they’re signing. Technical action data (JSON with type names and hex data) incomprehensible to most users. Mainstream adoption requires transaction readability.

Solution Implemented: Human-readable action summaries:

  • Transform technical action data into plain language descriptions
  • Structured table presentation for complex data
  • Context-appropriate descriptions based on action type
  • Integration throughout transaction views

Work Completed:

Technical Impact: Major usability improvement making blockchain transactions understandable to non-technical users. Users can review transaction contents in plain language before signing. Essential for mainstream adoption - users won’t sign transactions they can’t understand. Improves security by enabling informed consent.

Implementation: Likely uses mapping from action types (contract::action) to human-readable templates. Templates filled with action data parameters. Tables display structured data (arrays, complex objects) in scannable format.

Links:

Dynamic Open Graph Images for SEO

Context: Social media sharing and SEO require Open Graph metadata with preview images. May implemented dynamic image generation.

Business Need: Links shared on Twitter, Discord, Telegram show rich previews when proper OG metadata present. Static OG images don’t reflect page content. Dynamic images with page-specific content improve click-through rates and professional appearance.

Solution Implemented: Dynamic OG image generation:

  • Serialize page data (account names, transaction IDs, etc.) into URI parameters
  • API endpoint proxies to unicove-og-image-gen service
  • Generator creates custom images with page-specific data
  • Returns generated image for social preview
  • Each page type can have custom OG template

Work Completed:

Technical Impact: Significant SEO and social media improvement. Shared links display rich previews with context-specific information. Professional appearance on social platforms. Improves click-through rates from social media. Demonstrates attention to marketing and growth details beyond core functionality.

Architecture: Page generates OG metadata with serialized data URI. Social platforms request OG image URL. API endpoint deserializes data, proxies to image generation service (unicove-og-image-gen), returns generated PNG/JPEG. Generation service likely uses headless browser or canvas rendering to create images.

Links:

Mnemonic Recovery in Web Authenticator

Context: Web Authenticator needed account recovery mechanism for production deployment.

Business Need: Users must be able to recover accounts if they lose device, switch browsers, or clear browser data. Without recovery mechanism, account loss means permanent loss of funds. Recovery capability critical for production deployment.

Technical Challenge: Web Authenticator uses WebAuthn (biometric) authentication. WebAuthn credentials tied to device/browser. Credentials cannot be exported or transferred. Need separate recovery mechanism independent of WebAuthn.

Solution Implemented: BIP39 mnemonic phrase backup and recovery:

  • Generate BIP39 mnemonic (12/24 word phrase) from account key entropy
  • Users write down mnemonic for backup
  • Recovery flow accepts mnemonic to restore account
  • Import account on new device using mnemonic
  • Complements WebAuthn convenience with recovery safety net

Work Completed:

Technical Impact: Critical production readiness milestone. Mnemonic recovery provides familiar, industry-standard account restoration method. Users can confidently use Web Authenticator knowing they can recover accounts. Essential for production deployment - users won’t adopt wallet without recovery mechanism. Balances WebAuthn convenience with traditional crypto recovery approach.

Technical Details: BIP39 generates mnemonic from entropy using standardized word list. Mnemonic can be used to derive cryptographic keys through PBKDF2. Recovery flow validates mnemonic, derives keys, restores account state.

Links:

Ledger Hardware Wallet Integration

Context: May integrated Ledger hardware wallet support in Web Authenticator and WharfKit ecosystem.

Business Need: Some users require hardware wallet security for high-value accounts. Hardware wallets provide maximum security through offline key storage. Web Authenticator focused on convenience (WebAuthn), but professional users need hardware security option.

Solution Implemented: Ledger plugin architecture:

  • Created wharfkit/wallet-plugin-ledger package
  • Support multiple transport methods (WebUSB, WebHID, WebBLE, node-hid)
  • Integrated into Web Authenticator
  • Users can sign with Ledger while using cloud wallet interface
  • Bridges convenience and maximum security

Work Completed:

Technical Impact: Expands Web Authenticator security options. Users can combine cloud wallet convenience with hardware wallet security. Attractive to institutional users and high-net-worth individuals requiring hardware security. WebBLE support enables mobile Ledger connectivity. Demonstrates flexible plugin architecture supporting multiple security models in single interface.

Transport Methods:

  • WebUSB: Browser-based USB connection (Chrome, Edge)
  • WebHID: Browser-based HID connection (Chrome, Edge)
  • WebBLE: Bluetooth connection for mobile devices
  • node-hid: Node.js USB connection for server environments

Status: IN DEVELOPMENT - not production-ready yet, but foundation established.

Links:

Vaulta Rebrand Completion Across Stack

Context: April began Vaulta rebrand in Unicove. May completed rebrand across full stack including mobile and SDK layers.

Coordination Challenge: Rebrand requires changes across multiple layers:

  • Frontend applications (Unicove, Anchor Mobile)
  • SDK/Library layer (WharfKit common)
  • Backend services and configurations
  • Documentation and external materials

Solution Implemented: Coordinated rebrand across stack:

  • WharfKit SDK: Added Vaulta chain definition with endpoints and token metadata (wharfkit/common PR #4)
  • Mobile Apps: Anchor Android Vaulta migration renaming EOS throughout UI (greymass/anchor-mobile-android PR #728)
  • Web Apps: Unicove completed in April with flexible configuration (PR #430)
  • Network Configurations: Chain metadata, endpoints, token info standardized

Work Completed:

Technical Impact: Completes Vaulta rebrand across entire product ecosystem. Users see consistent Vaulta branding across web, mobile, and SDK layers. Central chain definition in wharfkit/common ensures all WharfKit-powered dapps support Vaulta with standard configuration. Demonstrates coordinated execution across multiple teams and repositories. Reflects network’s post-VF evolution and new identity.

Strategic Context: Rebrand reflects network evolution following Vaulta Foundation changes. Consistent branding across all touchpoints prevents user confusion about network identity and status.

Links:

Ledger and imToken Wallet Plugin Creation

Context: May created two new wallet plugins expanding WharfKit’s supported wallet ecosystem.

Strategy: Comprehensive wallet support through plugin architecture. Each wallet plugin enables WharfKit dapps to support different user preferences and regional ecosystems.

New Plugins Created:

wallet-plugin-ledger: Hardware wallet security for institutional/high-value users

  • Multiple transport methods (WebUSB, WebHID, WebBLE, node-hid)
  • Maximum security through offline key storage
  • Cross-platform compatibility including mobile (WebBLE)
  • Status: IN DEVELOPMENT

wallet-plugin-imtoken: Popular Asian mobile wallet expanding regional reach

  • Browser-based mobile wallet connection
  • Standard WharfKit plugin architecture
  • Significant Asian market user base

Technical Impact: Expands potential user base for WharfKit-powered dapps. Developers using WharfKit can support diverse wallet preferences with minimal integration effort. Plugin architecture demonstrates extensibility - adding wallet support doesn’t require core library changes. Ledger plugin brings maximum security option. imToken plugin enables Asian market access.

Strategic Value: Each plugin reduces friction for specific user segments. Ledger plugin attracts institutional and high-value users. imToken plugin enables Asian market penetration. Comprehensive wallet support makes WharfKit attractive SDK choice for dapp developers.

Links:

Anchor Mobile Android Stability Sprint

Context: May saw unusual high activity in Anchor Android (17 PRs) addressing accumulated technical debt and stability issues.

Challenge: Maintenance mode applications still accumulate bugs and issues. User reports indicated memory leaks, authentication hangs, key handling failures, and translation errors. Vaulta rebrand needed implementation.

Solution Implemented: Focused maintenance sprint addressing backlog:

Memory Management: Fixed camera listener leak preventing memory accumulation during repeated camera usage (PR #739)

Authentication Reliability: Fixed JS hang during authentication when page recycled (PR #740), proper async key handling with await (PR #741)

Key Management: Never delete keys policy protecting users from accidental loss (PR #735), allow deleting accounts without OKC providing escape hatch (PR #734)

Vaulta Migration: Complete EOS→Vaulta rebrand throughout app (PR #728)

UI/UX: Alignment fixes (PR #744), PIN label updates for Android 10 (PR #729)

Localization: Critical Chinese translation fixes correcting mistranslations significantly changing meaning (PR #742)

Data Integrity: Fixed settings date handling ensuring persistence (PR #743)

Diagnostics: Error collection for mysterious key handling issue (PR #730)

Technical Impact: Significantly improved Anchor Android stability and user experience. Memory leak fix prevents gradual performance degradation. Authentication hang fix prevents frustrating app freezes. Key management improvements protect users from data loss. Vaulta migration aligns with ecosystem rebrand. High PR count suggests focused maintenance sprint clearing accumulated backlog. Demonstrates ongoing commitment to maintenance-mode products.

Sprint Pattern: 17 PRs in single month indicates coordinated effort rather than organic maintenance. Likely dedicated sprint addressing backlog identified through March’s Crashlytics integration (see March 2025 Crashlytics).

Links: See anchor-mobile-android section for individual PR links.

April 2025
May 2025
June 2025
📊 Summary ⚙️ Technical 🔍 Research