noncelab/coconut_wallet
Apr 2025 – Aug 2025
5 Months active
Languages Used
DartMarkdownSVGShellYAMLGradlePlistXML
Technical Skills
Backend DevelopmentCode ClarityDartDatabase ManagementDatabase MigrationDocumentation
Yumin Kim
PROFILE
Yumin Kim
Developed and maintained the coconut_wallet repository over five months, delivering 68 features and resolving 40 bugs to enhance wallet onboarding, transaction flows, and cross-platform reliability. Focused on robust Bitcoin unit handling, descriptor validation, and secure authentication, the work included Android 15 upgrades, UI/UX refinements, and integration of Lightning invoicing. Leveraged Dart, Flutter, and Kotlin to implement features such as multi-wallet send flows, QR code scanning, and Realm database migrations. Emphasized code clarity, test coverage, and maintainability through regular refactoring and documentation, resulting in a scalable, user-friendly cryptocurrency wallet with improved reliability, security, and business-critical transaction support.
Overall Statistics
Feature vs Bugs
63%Features
Repository Contributions
156Total
Bugs
40
Commits
156
Features
68
Lines of code
20,865
Activity Months5
Your Network
20 peopleSame Organization
@noncelab.com8
Work History
August 2025
24 Commits • 11 Features
Aug 1, 2025In 2025-08, delivered platform-aligned upgrades and targeted UI/UX improvements for the coconut_wallet app, with a focus on Android 15 readiness and a polished user flow across sending, wallet selection, and UTXO management. Implemented a major Android platform update (targetSdkVersion 35; Java 17; Gradle 8 packaging) and refreshed QR scanning components to meet new namespace requirements, preparing the product for current and upcoming device ecosystems. Completed extensive UI/UX refinements for the Coconut QR Scanner,Send flow, and bottom sheets, including performance-friendly progress visuals, 99% text handling, and consistent styling. Fixed critical reliability issues in the send and UTXO flows, including animation states, validation paths, dropdown behavior, and text overflow, strengthening business-critical flows like transfers and wallet selection while maintaining accessibility and consistency across the app.
24 Commits • 11 Features
Aug 1, 2025In 2025-08, delivered platform-aligned upgrades and targeted UI/UX improvements for the coconut_wallet app, with a focus on Android 15 readiness and a polished user flow across sending, wallet selection, and UTXO management. Implemented a major Android platform update (targetSdkVersion 35; Java 17; Gradle 8 packaging) and refreshed QR scanning components to meet new namespace requirements, preparing the product for current and upcoming device ecosystems. Completed extensive UI/UX refinements for the Coconut QR Scanner,Send flow, and bottom sheets, including performance-friendly progress visuals, 99% text handling, and consistent styling. Fixed critical reliability issues in the send and UTXO flows, including animation states, validation paths, dropdown behavior, and text overflow, strengthening business-critical flows like transfers and wallet selection while maintaining accessibility and consistency across the app.
August 2025
July 2025
37 Commits • 23 Features
Jul 1, 2025July 2025 performance summary for coconut_wallet: Delivered a comprehensive upgrade to the Send flow with a new Send screen, enhanced fee and balance workflows, and multi-wallet support. Implemented major UX improvements, bug fixes, and refactors that reduce user friction, increase transaction success rates, and improve visibility into costs and balances. Resulted in stronger business value through improved conversion, clearer fee guidance, and scalable multi-wallet support across the send workflow.
July 2025
37 Commits • 23 Features
Jul 1, 2025July 2025 performance summary for coconut_wallet: Delivered a comprehensive upgrade to the Send flow with a new Send screen, enhanced fee and balance workflows, and multi-wallet support. Implemented major UX improvements, bug fixes, and refactors that reduce user friction, increase transaction success rates, and improve visibility into costs and balances. Resulted in stronger business value through improved conversion, clearer fee guidance, and scalable multi-wallet support across the send workflow.
June 2025
45 Commits • 18 Features
Jun 1, 2025June 2025 monthly summary for noncelab/coconut_wallet focused on delivering robust Bitcoin unit handling, UX enhancements, and security improvements that directly increase reliability and business value. Key features delivered include cross‑app BTC/SATS unit conversion across transaction details, UTXO list, and sending/fees flows; new Bitcoin unit conversion settings with removal of legacy persistence logic; user‑friendly number formatting (thousand separators) for send amounts; support for Jade wallets with UR tests; and a memo system for sending completed transactions with memo visibility in wallet detail views. Address and address search UX were improved with options to show unused addresses, debounced search, and stable scrolling behavior.
45 Commits • 18 Features
Jun 1, 2025June 2025 monthly summary for noncelab/coconut_wallet focused on delivering robust Bitcoin unit handling, UX enhancements, and security improvements that directly increase reliability and business value. Key features delivered include cross‑app BTC/SATS unit conversion across transaction details, UTXO list, and sending/fees flows; new Bitcoin unit conversion settings with removal of legacy persistence logic; user‑friendly number formatting (thousand separators) for send amounts; support for Jade wallets with UR tests; and a memo system for sending completed transactions with memo visibility in wallet detail views. Address and address search UX were improved with options to show unused addresses, debounced search, and stable scrolling behavior.
June 2025
May 2025
30 Commits • 13 Features
May 1, 2025May 2025 (2025-05) monthly summary for noncelab/coconut_wallet. Delivered a set of feature-rich enhancements across wallet onboarding, descriptor validation, UI consistency, and Lightning capabilities. The work improved user experience, reduced onboarding friction, and strengthened safety for mainnet usage while expanding monetization and community engagement opportunities.
May 2025
30 Commits • 13 Features
May 1, 2025May 2025 (2025-05) monthly summary for noncelab/coconut_wallet. Delivered a set of feature-rich enhancements across wallet onboarding, descriptor validation, UI consistency, and Lightning capabilities. The work improved user experience, reduced onboarding friction, and strengthened safety for mainnet usage while expanding monetization and community engagement opportunities.
April 2025
20 Commits • 3 Features
Apr 1, 2025April 2025: Delivered targeted wallet enhancements and backend reliability improvements that expand onboarding, improve data integrity, and reduce production risk. The work focused on manual wallet entry, external wallet support, and robust migrations, delivering tangible business value through safer defaults, broader wallet compatibility, and stronger test coverage.
20 Commits • 3 Features
Apr 1, 2025April 2025: Delivered targeted wallet enhancements and backend reliability improvements that expand onboarding, improve data integrity, and reduce production risk. The work focused on manual wallet entry, external wallet support, and robust migrations, delivering tangible business value through safer defaults, broader wallet compatibility, and stronger test coverage.
April 2025
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Quality Metrics
Correctness87.2%
Maintainability85.4%
Architecture80.2%
Performance81.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
DartGradleJavaKotlinMarkdownPlistSVGShellTypeScriptXML
Technical Skills
API IntegrationAmount CalculationAndroid DevelopmentAsset ManagementAuthenticationBackend DevelopmentBitcoinBlockchainBug FixingBuild ConfigurationCode ClarityCode CleanupCode RefactoringCross-Platform DevelopmentCryptocurrency Wallets
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