
Valentin Dealmeida developed and maintained core device management and transport features for the LedgerHQ/device-sdk-ts and LedgerHQ/ledger-live repositories, focusing on robust cross-platform connectivity and developer tooling. He engineered APIs such as isEnvironmentSupported for environment validation, improved BLE and WebHID transport reliability, and introduced dynamic configuration for Speculos integration. Valentin modernized the testing framework by migrating to Vitest, streamlined CI/CD workflows, and enhanced release automation using TypeScript and Node.js. His work included dependency management, error handling, and documentation improvements, resulting in more stable builds, safer releases, and smoother onboarding for both developers and end users across multiple environments.

October 2025 monthly summary focusing on feature delivery and readiness for the Solana Phone LLM release in Ledger Live, with metadata updates, asset additions, and configuration refinements to support go-to-market.
October 2025 monthly summary focusing on feature delivery and readiness for the Solana Phone LLM release in Ledger Live, with metadata updates, asset additions, and configuration refinements to support go-to-market.
In September 2025, the LedgerHQ device SDK team introduced a proactive environment validation capability in DeviceManagementKit. The primary delivery was a new API, isEnvironmentSupported, which checks environment compatibility across all transports and returns true if any transport reports support. This work strengthens reliability and reduces runtime errors during transport initialization, supporting our multi-transport strategy and smoother onboarding for new environments.
In September 2025, the LedgerHQ device SDK team introduced a proactive environment validation capability in DeviceManagementKit. The primary delivery was a new API, isEnvironmentSupported, which checks environment compatibility across all transports and returns true if any transport reports support. This work strengthens reliability and reduces runtime errors during transport initialization, supporting our multi-transport strategy and smoother onboarding for new environments.
June 2025 performance summary for LedgerHQ/device-sdk-ts focusing on foundational tooling improvements to enhance code quality, stability, and release readiness. The main initiative this month was Development Tooling Upgrades, targeting more robust linting and a streamlined changeset-based release workflow. No major bug fixes were reported for this repository in June.
June 2025 performance summary for LedgerHQ/device-sdk-ts focusing on foundational tooling improvements to enhance code quality, stability, and release readiness. The main initiative this month was Development Tooling Upgrades, targeting more robust linting and a streamlined changeset-based release workflow. No major bug fixes were reported for this repository in June.
May 2025 focused on reliability, security readiness, and developer productivity across LedgerHQ/device-sdk-ts. Delivered concrete features with robust integration, established foundational protocols for trusted apps, and modernized tooling to stabilize builds and accelerate releases. Also resolved a critical dependency handling bug to prevent build/test failures.
May 2025 focused on reliability, security readiness, and developer productivity across LedgerHQ/device-sdk-ts. Delivered concrete features with robust integration, established foundational protocols for trusted apps, and modernized tooling to stabilize builds and accelerate releases. Also resolved a critical dependency handling bug to prevent build/test failures.
April 2025 monthly summary: Across LedgerHQ/device-sdk-ts and LedgerHQ/ledger-live, delivered stability, configurability, and efficiency gains through BLE transport improvements, dynamic Speculos integration, tooling modernization, and UI stabilization. These efforts reduce support friction for BLE device operations, accelerate development and testing via configurable Speculos endpoints, and improve end-user experience with smoother device status updates and streamlined device-session management. The work also advanced pairing UX and error handling in Ledger Live, contributing to higher onboarding success and lower friction in device workflows.
April 2025 monthly summary: Across LedgerHQ/device-sdk-ts and LedgerHQ/ledger-live, delivered stability, configurability, and efficiency gains through BLE transport improvements, dynamic Speculos integration, tooling modernization, and UI stabilization. These efforts reduce support friction for BLE device operations, accelerate development and testing via configurable Speculos endpoints, and improve end-user experience with smoother device status updates and streamlined device-session management. The work also advanced pairing UX and error handling in Ledger Live, contributing to higher onboarding success and lower friction in device workflows.
2025-03 Monthly Summary: Delivered business- and developer-focused outcomes across LedgerHQ/device-sdk-ts and LedgerHQ/ledger-live, emphasizing automation, safer releases, and robust error handling. Key features include toolchain update automation with signed commits and pre-API branch creation, a release tooling overhaul with a workspace-aware publishing workflow powered by ldmk-cli, added DMK CLI for device management, and targeted stability improvements via dependency upgrades and a critical TranslatedError fix.
2025-03 Monthly Summary: Delivered business- and developer-focused outcomes across LedgerHQ/device-sdk-ts and LedgerHQ/ledger-live, emphasizing automation, safer releases, and robust error handling. Key features include toolchain update automation with signed commits and pre-API branch creation, a release tooling overhaul with a workspace-aware publishing workflow powered by ldmk-cli, added DMK CLI for device management, and targeted stability improvements via dependency upgrades and a critical TranslatedError fix.
February 2025 monthly summary for LedgerHQ/device-sdk-ts focusing on delivering business value through test modernization, device management improvements, and CI/release process enhancements. Highlights include a unified Vitest-based testing framework across the repository, refinements to the Device Management Kit (DMK) with transport filtering and a Refresher service to reduce blocking, and streamlined CI and release workflows. Documentation quality improvements were also completed to improve maintainability and developer onboarding.
February 2025 monthly summary for LedgerHQ/device-sdk-ts focusing on delivering business value through test modernization, device management improvements, and CI/release process enhancements. Highlights include a unified Vitest-based testing framework across the repository, refinements to the Device Management Kit (DMK) with transport filtering and a Refresher service to reduce blocking, and streamlined CI and release workflows. Documentation quality improvements were also completed to improve maintainability and developer onboarding.
January 2025 monthly summary highlighting delivery across LedgerHQ device sdk team and Ledger Live with a focus on business value, reliability, and developer experience. Delivered core mobile DMK integration, stable device connectivity workflows, and tooling improvements, while advancing LDMK integration and branding/packaging for Ledger Live. Significant gains in platform stability, documentation synchronization, and release readiness.
January 2025 monthly summary highlighting delivery across LedgerHQ device sdk team and Ledger Live with a focus on business value, reliability, and developer experience. Delivered core mobile DMK integration, stable device connectivity workflows, and tooling improvements, while advancing LDMK integration and branding/packaging for Ledger Live. Significant gains in platform stability, documentation synchronization, and release readiness.
Summary for 2024-12: Key features delivered across Ledger Live and device-sdk-ts; Major bugs fixed; Overall impact and accomplishments; Technologies/skills demonstrated, with emphasis on business value.
Summary for 2024-12: Key features delivered across Ledger Live and device-sdk-ts; Major bugs fixed; Overall impact and accomplishments; Technologies/skills demonstrated, with emphasis on business value.
Monthly summary for 2024-11: This period focused on delivering robust transport capabilities, elevating test coverage and CI reliability, and advancing the DMK integration path in Ledger Live. Across two repos, we delivered a set of focused enhancements that optimize device transport, streamline releases, and strengthen monorepo tooling, enabling faster delivery cycles and safer deployments.
Monthly summary for 2024-11: This period focused on delivering robust transport capabilities, elevating test coverage and CI reliability, and advancing the DMK integration path in Ledger Live. Across two repos, we delivered a set of focused enhancements that optimize device transport, streamline releases, and strengthen monorepo tooling, enabling faster delivery cycles and safer deployments.
October 2024 monthly summary for LedgerHQ/device-sdk-ts. Key deliverable: stabilizing the auto-update PNPM version synchronization workflow in package.json; the workflow now reads the current PNPM version, compares it against the version in package.json, and updates package.json when needed, staging the changes and creating a PR. Impact: improved CI reliability and version consistency across environments, reducing drift and manual intervention, enabling faster, safer releases. Technologies/skills demonstrated: PNPM, GitHub Actions workflows, package.json version management, CI/CD automation, scripting within a TypeScript SDK repository.
October 2024 monthly summary for LedgerHQ/device-sdk-ts. Key deliverable: stabilizing the auto-update PNPM version synchronization workflow in package.json; the workflow now reads the current PNPM version, compares it against the version in package.json, and updates package.json when needed, staging the changes and creating a PR. Impact: improved CI reliability and version consistency across environments, reducing drift and manual intervention, enabling faster, safer releases. Technologies/skills demonstrated: PNPM, GitHub Actions workflows, package.json version management, CI/CD automation, scripting within a TypeScript SDK repository.
Overview of all repositories you've contributed to across your timeline