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Przemysław Włodek

PROFILE

Przemysław Włodek

Over eight months, contributed to the input-output-hk/lace and cardano-js-sdk repositories by building and refining browser extension wallet features, onboarding flows, and governance-driven DApp explorer enhancements. Applied TypeScript, React, and JavaScript to deliver robust state management, dynamic feature flagging, and performance optimizations, while integrating tools like Sentry and PostHog for observability and error tracking. Improved user experience through UI/UX enhancements, streamlined wallet top-up and onboarding, and hardened security via dependency updates. Automated development workflows with Makefile and build automation, and maintained code quality through targeted bug fixes, dependency management, and rigorous testing, resulting in more reliable and maintainable releases.

Overall Statistics

Feature vs Bugs

64%Features

Repository Contributions

32Total
Bugs
8
Commits
32
Features
14
Lines of code
4,973
Activity Months8

Work History

December 2025

5 Commits • 2 Features

Dec 1, 2025

December 2025 lace delivered targeted improvements that tightened developer feedback loops and enhanced user onboarding for Midnight Wallet. Key outcomes include: (1) Dev workflow automation and faster builds via v2 submodule linking/unlinking commands and fast (re)build options for the bundled browser-extension-wallet, accelerating local development cycles; (2) Unified Midnight wallet onboarding with blockchain selection integration, including startMidnightCreate/Restore flow and related v2 updates, complemented by translations tweaks; (3) UX polish and network status clarity with a close button for v1 onboarding when coming from v2 and a preview/preprod label to clarify network state; (4) stability and localization improvements, addressing onboarding behavior transitions from v2 and refining bitcoin onboarding translations to reduce user friction.

June 2025

6 Commits • 3 Features

Jun 1, 2025

June 2025: Lace repository delivered focused security hardening, UX improvements for wallet interactions, and a streamlined top-up workflow, resulting in a more reliable and user-friendly experience. The work emphasizes business value through reduced friction, increased stability, and stronger security posture.

April 2025

1 Commits

Apr 1, 2025

Month: 2025-04 | Repositories: input-output-hk/lace. Focused work on stabilizing the DropdownMenu UI to improve reliability and user experience. The primary deliverable this month was a fix suite for DropdownMenu addressing memory leaks, React warnings, and DOM nesting issues. This reduces crash risk, minimizes UI glitches, and lowers support/QA effort going forward. The changes are encapsulated in a targeted patch associated with LW-12618 (commit c3688b254d675572187b1bf98b1ab4d72f097266).

March 2025

6 Commits • 2 Features

Mar 1, 2025

March 2025 highlights for input-output-hk/lace: Delivered dynamic PostHog feature flag polling in the browser extension with context-aware logging to enable safer, real-time feature management. Implemented Sentry-based error tracking across the app, introducing AppLogger and conditional reporting for logger and extension errors. Fixed DApp transaction confirmation reliability, ensuring confirmations occur only for valid requests and improving error logging and UI state handling. Hardened storage access by safely reading background storage and handling missing data in fresh states. These changes improve rollout safety, observability, and user experience, while reducing debugging time and operational risk.

February 2025

8 Commits • 4 Features

Feb 1, 2025

February 2025 performance summary focused on delivering high-impact features, reliability improvements, and reduced risk across lace and cardano-js-sdk. The work emphasized business value through storage optimization, enhanced observability, cleaner collateral workflows, and dependency modernization, enabling faster delivery and fewer incidents. Highlights include removing automated collateral management to simplify flows and reduce operational risk; upgrading Cardano SDK dependencies to benefits of new features and fixes; and improving user-facing performance with on-demand activity loading and robust error handling.

January 2025

3 Commits • 1 Features

Jan 1, 2025

January 2025: Delivered governance-focused enhancements to the DApp explorer and stabilized wallet UI. Implemented feature-flag-based filtering in the DApp explorer (DApps and categories) to dynamically hide disallowed content; updated PostHog client schemas and explorer service to support feature-flag payloads. Fixed PaperWalletSettingsDrawer footer rendering by using useRef for password state and updated E2E tests to wait for button visibility, improving test reliability. These changes reduce exposure to non-compliant content, strengthen UI robustness, and enhance CI/test stability.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for Lace (input-output-hk/lace): Delivered a core performance improvement for Dapp API injection in the browser extension. The Dapp API injection initialization was refactored to simplify the startup flow, removing unnecessary parameters and directly injecting the script source. This reduces startup time and improves the efficiency of the Dapp connector setup, delivering a smoother onboarding experience for Dapp developers and end users.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024 (2024-11) focused on stabilizing wallet onboarding and ensuring reliable app state after wallet operations. Delivered hard state refresh after wallet creation/restoration and after closing the Recovery Phrase drawer, and tightened password entry UX by preventing unintended page reloads during PGP key input. These changes reduce onboarding friction, minimize data loss from reloads, and improve overall reliability for end-users. The work demonstrates strong React/TypeScript event handling, state management, and quality discipline (issue tracking LW-11807, LW-11866).

Activity

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Quality Metrics

Correctness87.8%
Maintainability84.2%
Architecture80.6%
Performance78.4%
AI Usage25.0%

Skills & Technologies

Programming Languages

JSONJavaScriptMakefileMarkdownPropertiesSCSSTypeScript

Technical Skills

API IntegrationAsynchronous ProgrammingBrowser Extension DevelopmentCI/CDCardano DevelopmentCardano SDKCode AnalysisCode RefactoringComponent DevelopmentConfiguration ManagementData ManagementData ValidationDebuggingDependency ManagementError Handling

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

input-output-hk/lace

Nov 2024 Dec 2025
8 Months active

Languages Used

JavaScriptTypeScriptSCSSPropertiesJSONMakefileMarkdown

Technical Skills

Browser Extension DevelopmentComponent DevelopmentFrontend DevelopmentReactJavaScriptTypeScript

input-output-hk/cardano-js-sdk

Feb 2025 Feb 2025
1 Month active

Languages Used

TypeScript

Technical Skills

Cardano DevelopmentCardano SDKSDK DevelopmentTypeScriptWallet Development