
Over thirteen months, Semeano contributed to LedgerHQ/ledger-live by building and maintaining multi-chain cryptocurrency integrations, including Aptos, Kaspa, Monad, and Zcash. He engineered robust end-to-end workflows for staking, swaps, and token management, focusing on reliability and maintainability through comprehensive test automation and codebase hygiene. Using TypeScript, React, and Redux, Semeano modernized state management and improved user experience with features like Zcash sync estimation and clear signing for Sui tokens. His work addressed cross-platform consistency, streamlined CI/CD pipelines, and expanded asset coverage, resulting in a scalable, well-tested codebase that reduced release risk and accelerated support for new protocols.

February 2026 (LedgerHQ/ledger-live): Delivered Zcash synchronization UX enhancements and Redux Toolkit-based state management, enabling estimated sync times and user controls (start/pause/monitor). Implemented codebase modernization with RTK slices and updated import paths. Performed targeted UI polish and maintenance across components to improve visual consistency, readability, and reduce surface area by removing an unused zcashSync.ts. These changes improve user experience, reduce support friction, and establish a scalable architecture for future protocol integrations.
February 2026 (LedgerHQ/ledger-live): Delivered Zcash synchronization UX enhancements and Redux Toolkit-based state management, enabling estimated sync times and user controls (start/pause/monitor). Implemented codebase modernization with RTK slices and updated import paths. Performed targeted UI polish and maintenance across components to improve visual consistency, readability, and reduce surface area by removing an unused zcashSync.ts. These changes improve user experience, reduce support friction, and establish a scalable architecture for future protocol integrations.
December 2025 monthly summary for LedgerHQ/ledger-live focusing on stability, privacy, and integration work. Consolidated maintenance and test improvements, delivered key feature work around token signing, and fixed critical integration issues to enhance user value and reliability.
December 2025 monthly summary for LedgerHQ/ledger-live focusing on stability, privacy, and integration work. Consolidated maintenance and test improvements, delivered key feature work around token signing, and fixed critical integration issues to enhance user value and reliability.
2025-11 Monthly Summary — Focused on expanding currency coverage, strengthening cross-chain reliability, and improving UX and code quality, delivering measurable business value. Key features delivered: - Ledger Live: Added support for 0G coin, Monad Testnet, and Somnia coin, including currency definitions, transaction formatting, and tests. Major bugs fixed: - Aptos network: Fixed bridge integration tests and corrected max-spend/balance calculations for Aptos tokens. - Monad swap UX messaging improved on Nano S to clearly indicate incompatibilities. Internal quality and polish: - Routine tests, linting, and UI icon updates to improve robustness and maintainability. Impact and skills: - Expanded market coverage and cross-chain reliability enabling broader user adoption and reduced support overhead. - Enhanced privacy options with shielded transactions behind a feature flag. - Improved developer experience with dynamic CAL token management and stronger CI/test hygiene.
2025-11 Monthly Summary — Focused on expanding currency coverage, strengthening cross-chain reliability, and improving UX and code quality, delivering measurable business value. Key features delivered: - Ledger Live: Added support for 0G coin, Monad Testnet, and Somnia coin, including currency definitions, transaction formatting, and tests. Major bugs fixed: - Aptos network: Fixed bridge integration tests and corrected max-spend/balance calculations for Aptos tokens. - Monad swap UX messaging improved on Nano S to clearly indicate incompatibilities. Internal quality and polish: - Routine tests, linting, and UI icon updates to improve robustness and maintainability. Impact and skills: - Expanded market coverage and cross-chain reliability enabling broader user adoption and reduced support overhead. - Enhanced privacy options with shielded transactions behind a feature flag. - Improved developer experience with dynamic CAL token management and stronger CI/test hygiene.
October 2025 monthly performance summary for Ledger Live focusing on delivering business value and technical robustness across Monad and Kaspa coin support.
October 2025 monthly performance summary for Ledger Live focusing on delivering business value and technical robustness across Monad and Kaspa coin support.
In September 2025, expanded LedgerHQ/wallet-api to support Kaspa, delivering end-to-end Kaspa transaction handling with type-safe data modeling, serialization/deserialization, and validation. Strengthened transaction integrity and test coverage to reduce risk for asset support expansion and improve time-to-market for new assets.
In September 2025, expanded LedgerHQ/wallet-api to support Kaspa, delivering end-to-end Kaspa transaction handling with type-safe data modeling, serialization/deserialization, and validation. Strengthened transaction integrity and test coverage to reduce risk for asset support expansion and improve time-to-market for new assets.
August 2025 performance summary: Launched Kaspa coin support in Ledger Live with a cross-platform Kaspa module (bridge, account/transaction handling, fee UI, currency list integration) and delivered Aptos stability and performance improvements (validator caching, client-side transaction sorting, API client fixes, and dead code removal with test cleanup). Also applied lint fixes and changeset-driven release processes to improve code quality and deployment reliability. Business impact includes expanded asset coverage, faster user interactions with Aptos, and reduced maintenance overhead, demonstrated through a combination of feature delivery, reliability enhancements, and maintainable release workflows.
August 2025 performance summary: Launched Kaspa coin support in Ledger Live with a cross-platform Kaspa module (bridge, account/transaction handling, fee UI, currency list integration) and delivered Aptos stability and performance improvements (validator caching, client-side transaction sorting, API client fixes, and dead code removal with test cleanup). Also applied lint fixes and changeset-driven release processes to improve code quality and deployment reliability. Business impact includes expanded asset coverage, faster user interactions with Aptos, and reduced maintenance overhead, demonstrated through a combination of feature delivery, reliability enhancements, and maintainable release workflows.
July 2025 Ledger Live monthly summary: Delivered cross-platform Aptos staking integration (UI + backend) with stake/unstake/withdraw/restake flows, Aptos network integration, and test coverage; SDK updates and GraphQL adjustments; some mobile scope changes including removal of Aptos staking on mobile where applicable. Strengthened SUI coin module testing and network maintenance with robust tests, HTTP headers wiring to RPC nodes, timeouts, retries, and dependencies cleanup. Fixed key e2e/integration issues, updated tests and SDKs, and implemented CI/changeset hygiene improvements to reduce flakiness. Result: expanded asset coverage, improved staking UX, and stronger reliability for core network integrations.
July 2025 Ledger Live monthly summary: Delivered cross-platform Aptos staking integration (UI + backend) with stake/unstake/withdraw/restake flows, Aptos network integration, and test coverage; SDK updates and GraphQL adjustments; some mobile scope changes including removal of Aptos staking on mobile where applicable. Strengthened SUI coin module testing and network maintenance with robust tests, HTTP headers wiring to RPC nodes, timeouts, retries, and dependencies cleanup. Fixed key e2e/integration issues, updated tests and SDKs, and implemented CI/changeset hygiene improvements to reduce flakiness. Result: expanded asset coverage, improved staking UX, and stronger reliability for core network integrations.
June 2025 – LedgerHQ/ledger-live: Stabilized release tooling and packaging, documented Aptos/EVM fixes, and expanded asset support with Celo token transfers. These efforts improved release reliability, widened asset coverage, and clarified user-facing documentation across desktop/mobile.
June 2025 – LedgerHQ/ledger-live: Stabilized release tooling and packaging, documented Aptos/EVM fixes, and expanded asset support with Celo token transfers. These efforts improved release reliability, widened asset coverage, and clarified user-facing documentation across desktop/mobile.
May 2025 monthly summary for LedgerHQ/ledger-live: Focused on stabilizing test automation by updating the bot test configuration to disable the Near currency. This change ensures a defined active currency set during non-regression tests, reducing flakiness and improving CI reliability. No major bug fixes were recorded this month for this repository.
May 2025 monthly summary for LedgerHQ/ledger-live: Focused on stabilizing test automation by updating the bot test configuration to disable the Near currency. This change ensures a defined active currency set during non-regression tests, reducing flakiness and improving CI reliability. No major bug fixes were recorded this month for this repository.
April 2025 (LedgerHQ/ledger-live) focused on stabilizing the release by reverting the Aptos token integration and tightening test scope. Key changes included a rollback of the Aptos token integration to remove a problematic feature, and updates to the Jest configuration to exclude integration tests from the default suite. These changes reduce release risk, improve CI reliability, and accelerate feedback loops.
April 2025 (LedgerHQ/ledger-live) focused on stabilizing the release by reverting the Aptos token integration and tightening test scope. Key changes included a rollback of the Aptos token integration to remove a problematic feature, and updates to the Jest configuration to exclude integration tests from the default suite. These changes reduce release risk, improve CI reliability, and accelerate feedback loops.
March 2025: Ledger Live—Aptos reliability and test coverage enhancements across multi-chain workflows. Major features delivered and bugs fixed focused on Aptos derivation paths and end-to-end Aptos swaps.
March 2025: Ledger Live—Aptos reliability and test coverage enhancements across multi-chain workflows. Major features delivered and bugs fixed focused on Aptos derivation paths and end-to-end Aptos swaps.
February 2025: LedgerHQ/wallet-api advanced Aptos support through focused testing improvements and test-clarity fixes. The team expanded unit test coverage for Aptos transaction deserialization, including cases with and without optional parameters, and corrected a test description typo to ensure the suite accurately reflects Aptos behavior. These changes enhance reliability, speed up CI feedback, and reduce risk in production deployments by providing clearer signals for Aptos-related changes.
February 2025: LedgerHQ/wallet-api advanced Aptos support through focused testing improvements and test-clarity fixes. The team expanded unit test coverage for Aptos transaction deserialization, including cases with and without optional parameters, and corrected a test description typo to ensure the suite accurately reflects Aptos behavior. These changes enhance reliability, speed up CI feedback, and reduce risk in production deployments by providing clearer signals for Aptos-related changes.
January 2025 focused on stabilizing Aptos-related test coverage and bridging workflows in Ledger Live. The month delivered improved reliability, maintainability, and test-driven countervalue support for Aptos, translating to faster iteration cycles and more trustworthy release readiness across the Ledger Live suite.
January 2025 focused on stabilizing Aptos-related test coverage and bridging workflows in Ledger Live. The month delivered improved reliability, maintainability, and test-driven countervalue support for Aptos, translating to faster iteration cycles and more trustworthy release readiness across the Ledger Live suite.
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