LedgerHQ/ledger-live
Dec 2025 – Feb 2026
3 Months active
Languages Used
JavaScriptTypeScript
Technical Skills
API developmentESLintJavaScriptNode.jsTypeScriptTypeScript development
Emil Kashkevich
PROFILE
Emil Kashkevich
Emil Kashkevich contributed to the LedgerHQ/ledger-live repository by developing and integrating Concordium coin and hardware wallet support over a three-month period. He implemented API setup, transaction handling, and custom serialization methods, including memo encoding, to enhance transaction reliability and interoperability. Emil’s work included optimizing developer tooling with ESLint configuration improvements, refactoring for validation and maintainability, and exposing transport layers for improved testing. Using TypeScript, JavaScript, and Node.js, he focused on backend and full stack development, cryptography, and testing. His contributions expanded asset coverage, improved CI efficiency, and strengthened the security and reliability of Concordium workflows within Ledger Live.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
6Total
Bugs
0
Commits
6
Features
4
Lines of code
9,784
Activity Months3
Work History
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 LedgerHQ/ledger-live monthly summary: Delivered Concordium Transaction Serialization Enhancement with Memo Encoding. Implemented custom serialization methods for Concordium transactions, including support for memo encoding, covering transfer and credential deployment flows. Commit 22a7682dba09db84f80fbb08918b8da6804bfbf1: feat(concordium): added custom transaction serialization methods to hw-app-concordium. Impact: improved reliability and interoperability for Concordium transactions in Ledger Live, enabling memo-based workflows and reducing reconciliation effort.
1 Commits • 1 Features
Feb 1, 2026February 2026 LedgerHQ/ledger-live monthly summary: Delivered Concordium Transaction Serialization Enhancement with Memo Encoding. Implemented custom serialization methods for Concordium transactions, including support for memo encoding, covering transfer and credential deployment flows. Commit 22a7682dba09db84f80fbb08918b8da6804bfbf1: feat(concordium): added custom transaction serialization methods to hw-app-concordium. Impact: improved reliability and interoperability for Concordium transactions in Ledger Live, enabling memo-based workflows and reducing reconciliation effort.
February 2026
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026: Delivered initial Concordium hardware wallet integration (hw-app-concordium) for Ledger Live and completed a validation-focused refactor. Implemented address retrieval, transaction signing, and credential deployment; followed by a refactor that relocates the SchemeId enum, adds runtime validation for year/month serialization, and exposes transport for testing. These changes extend Ledger Live hardware wallet support, improve security and reliability, and lay groundwork for broader QA/testing and future Concordium feature work.
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026: Delivered initial Concordium hardware wallet integration (hw-app-concordium) for Ledger Live and completed a validation-focused refactor. Implemented address retrieval, transaction signing, and credential deployment; followed by a refactor that relocates the SchemeId enum, adds runtime validation for year/month serialization, and exposes transport for testing. These changes extend Ledger Live hardware wallet support, improve security and reliability, and lay groundwork for broader QA/testing and future Concordium feature work.
December 2025
3 Commits • 2 Features
Dec 1, 2025Month: 2025-12 Concise monthly summary for Ledger Live development: This period focused on expanding asset coverage and improving developer tooling. Delivered Concordium coin module integration, including API setup, transaction handling, and integration with existing Ledger frameworks, with support for Concordium’s abandon seed address. Implemented linting optimization for the build directory to streamline CI, by adding a .eslintignore to skip build/ checks for the mobile performance test workflow. No major bugs fixed this month; the emphasis was on feature delivery and tooling improvements. Overall impact includes expanded asset support, faster development feedback loops, and a more efficient CI pipeline. Technologies/skills demonstrated include JavaScript/TypeScript development, API integration patterns, transaction lifecycle handling, ESLint tooling, and CI/configuration.
3 Commits • 2 Features
Dec 1, 2025Month: 2025-12 Concise monthly summary for Ledger Live development: This period focused on expanding asset coverage and improving developer tooling. Delivered Concordium coin module integration, including API setup, transaction handling, and integration with existing Ledger frameworks, with support for Concordium’s abandon seed address. Implemented linting optimization for the build directory to streamline CI, by adding a .eslintignore to skip build/ checks for the mobile performance test workflow. No major bugs fixed this month; the emphasis was on feature delivery and tooling improvements. Overall impact includes expanded asset support, faster development feedback loops, and a more efficient CI pipeline. Technologies/skills demonstrated include JavaScript/TypeScript development, API integration patterns, transaction lifecycle handling, ESLint tooling, and CI/configuration.
December 2025
Activity
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Quality Metrics
Correctness96.8%
Maintainability86.8%
Architecture93.4%
Performance86.8%
AI Usage26.6%
Skills & Technologies
Programming Languages
JavaScriptTypeScript
Technical Skills
API developmentBackend DevelopmentESLintJavaScriptNode.jsTestingTypeScriptTypeScript developmentblockchain developmentcrypto asset managementcryptographyfront end developmentfull stack developmentsoftware engineering
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