LedgerHQ/ledger-live
Oct 2024 – Feb 2026
16 Months active
Languages Used
JavaScriptTypeScriptYAMLyamlBashGradleMarkdownShell
Technical Skills
CI/CDDetoxEnd-to-End TestingEnd-to-end testingGitHub ActionsJavaScript
Abdurrahman SASTIM
PROFILE
Abdurrahman Sastim
Abdurrahman Sastim engineered robust CI/CD pipelines and end-to-end test automation for the LedgerHQ/ledger-live repository, focusing on mobile reliability and release safety. Over 16 months, he delivered features such as configurable Speculos image tagging, dynamic feature flag management, and enhanced Allure reporting, while systematically reducing flaky tests and improving artifact traceability. His technical approach combined JavaScript, TypeScript, and shell scripting to optimize test infrastructure, stabilize emulator environments, and streamline test data management. By integrating tools like Detox and Playwright, Abdurrahman enabled faster feedback cycles, more deterministic releases, and higher confidence in core user flows, demonstrating depth in automation and DevOps practices.
Overall Statistics
Feature vs Bugs
56%Features
Repository Contributions
237Total
Bugs
35
Commits
237
Features
45
Lines of code
380,101
Activity Months16
Your Network
256 people
Work History
February 2026
1 Commits
Feb 1, 2026February 2026: Stabilized automated test artifacts for LedgerHQ/ledger-live. Delivered a bug fix to Allure test video capture ensuring complete recordings even when the application closes unexpectedly during test execution, reducing CI flakiness and speeding issue triage. Commit: 51ca543f2671e63d8548731a327fd0587c4b2f34.
1 Commits
Feb 1, 2026February 2026: Stabilized automated test artifacts for LedgerHQ/ledger-live. Delivered a bug fix to Allure test video capture ensuring complete recordings even when the application closes unexpectedly during test execution, reducing CI flakiness and speeding issue triage. Commit: 51ca543f2671e63d8548731a327fd0587c4b2f34.
February 2026
January 2026
20 Commits • 2 Features
Jan 1, 2026January 2026: Ledger Live delivered targeted UX enhancements and strengthened testing infrastructure, driving improved user experience, reliability, and faster release velocity. Key work included UX improvements for account/history, swap history fixes, and robust CI/AVD testing across the testing pipeline.
January 2026
20 Commits • 2 Features
Jan 1, 2026January 2026: Ledger Live delivered targeted UX enhancements and strengthened testing infrastructure, driving improved user experience, reliability, and faster release velocity. Key work included UX improvements for account/history, swap history fixes, and robust CI/AVD testing across the testing pipeline.
December 2025
28 Commits • 4 Features
Dec 1, 2025December 2025 (LedgerHQ/ledger-live) focused on stabilizing CI/CD, enhancing test reporting, and strengthening E2E reliability.
28 Commits • 4 Features
Dec 1, 2025December 2025 (LedgerHQ/ledger-live) focused on stabilizing CI/CD, enhancing test reporting, and strengthening E2E reliability.
December 2025
November 2025
6 Commits • 2 Features
Nov 1, 2025November 2025 Ledger Live monthly summary: Delivered critical updates across feature flag governance, mobile UX, and CI/test infrastructure. Focused on business value through safer feature rollouts, improved mobile performance, and more deterministic testing to accelerate release cycles.
November 2025
6 Commits • 2 Features
Nov 1, 2025November 2025 Ledger Live monthly summary: Delivered critical updates across feature flag governance, mobile UX, and CI/test infrastructure. Focused on business value through safer feature rollouts, improved mobile performance, and more deterministic testing to accelerate release cycles.
October 2025
1 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10: Focused on delivering a CI-facing feature to improve test flexibility and maintainability for LedgerHQ/ledger-live. Key feature delivered: Configurable Speculos image tag via environment variable SPECULOS_IMAGE_TAG, allowing CI to run against specific Speculos image versions while defaulting to 'master' when unspecified. No major bugs fixed this month; work centered on feature delivery and traceability. Overall impact and accomplishments: Enhanced CI reliability and test coverage by enabling use of specific Speculos images, reducing flaky tests and enabling reproducible validation of changes. This aligns with broader quality and release readiness goals. The change is tracked with a single commit 89f7c61488ffc644fcaf8277f2b54a020f9fdaf2. Technologies/skills demonstrated: environment variable-driven configuration, CI/CD practices, emulator testing (Speculos), version tagging, git traceability, cross-repo collaboration.
1 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10: Focused on delivering a CI-facing feature to improve test flexibility and maintainability for LedgerHQ/ledger-live. Key feature delivered: Configurable Speculos image tag via environment variable SPECULOS_IMAGE_TAG, allowing CI to run against specific Speculos image versions while defaulting to 'master' when unspecified. No major bugs fixed this month; work centered on feature delivery and traceability. Overall impact and accomplishments: Enhanced CI reliability and test coverage by enabling use of specific Speculos images, reducing flaky tests and enabling reproducible validation of changes. This aligns with broader quality and release readiness goals. The change is tracked with a single commit 89f7c61488ffc644fcaf8277f2b54a020f9fdaf2. Technologies/skills demonstrated: environment variable-driven configuration, CI/CD practices, emulator testing (Speculos), version tagging, git traceability, cross-repo collaboration.
October 2025
September 2025
10 Commits • 1 Features
Sep 1, 2025September 2025 (Ledger Live) delivered a focused set of reliability and quality improvements around the swap flow, stabilized cross-platform test execution, and cleaned up the test suite to reduce flakiness. The work enhanced business value by increasing swap success rates, speeding feedback loops, and reducing release risk, while keeping the CI/CD process deterministic and maintainable.
September 2025
10 Commits • 1 Features
Sep 1, 2025September 2025 (Ledger Live) delivered a focused set of reliability and quality improvements around the swap flow, stabilized cross-platform test execution, and cleaned up the test suite to reduce flakiness. The work enhanced business value by increasing swap success rates, speeding feedback loops, and reducing release risk, while keeping the CI/CD process deterministic and maintainable.
August 2025
2 Commits • 1 Features
Aug 1, 2025In August 2025, LedgerHQ/ledger-live focused on strengthening test reporting reliability by enhancing Allure integration. Key features include detecting silent test failures and translating them to a 'failed' status in Allure, and establishing global error handlers for unhandled rejections and uncaught exceptions to log/report these errors within Allure. Additional improvements include enhanced logging for failures in logSilentError to surface Allure-related issues and prevent silent failures during testing. These changes improve CI visibility, debugging speed, and overall reliability of the test telemetry in the LedgerHQ/ledger-live project.
2 Commits • 1 Features
Aug 1, 2025In August 2025, LedgerHQ/ledger-live focused on strengthening test reporting reliability by enhancing Allure integration. Key features include detecting silent test failures and translating them to a 'failed' status in Allure, and establishing global error handlers for unhandled rejections and uncaught exceptions to log/report these errors within Allure. Additional improvements include enhanced logging for failures in logSilentError to surface Allure-related issues and prevent silent failures during testing. These changes improve CI visibility, debugging speed, and overall reliability of the test telemetry in the LedgerHQ/ledger-live project.
August 2025
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025: Focused improvements to Ledger Live testing infrastructure, delivering stability, reliability, and faster feedback in CI. The month centered on fixing a critical test environment issue and advancing end-to-end testing capabilities, enabling more deterministic test runs and earlier detection of issues.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025: Focused improvements to Ledger Live testing infrastructure, delivering stability, reliability, and faster feedback in CI. The month centered on fixing a critical test environment issue and advancing end-to-end testing capabilities, enabling more deterministic test runs and earlier detection of issues.
May 2025
14 Commits • 4 Features
May 1, 2025May 2025 monthly summary highlighting delivery and impact across Ledger Live mobile CI, iOS/Android E2E testing, Speculos environment, and BLE mock transport reliability. The work reduced flaky tests, improved CI efficiency and security, and standardized test infrastructure for future sprints.
14 Commits • 4 Features
May 1, 2025May 2025 monthly summary highlighting delivery and impact across Ledger Live mobile CI, iOS/Android E2E testing, Speculos environment, and BLE mock transport reliability. The work reduced flaky tests, improved CI efficiency and security, and standardized test infrastructure for future sprints.
May 2025
April 2025
13 Commits • 3 Features
Apr 1, 2025April 2025: Ledger Live CI and E2E test automation matured to deliver reliable releases and improved test visibility. Actions included reverting unstable LLM E2E CI changes, enhancing Allure reporting and Slack notifications, and improving test filtering. E2E tests for swap flows were hardened with readiness signaling and faster provider handling, while Ledger Live end-to-end tests gained resilience with a persisted account renaming flow and a ledger sync fix. Business value includes reduced release risk, faster feedback, and higher confidence in critical user journeys.
April 2025
13 Commits • 3 Features
Apr 1, 2025April 2025: Ledger Live CI and E2E test automation matured to deliver reliable releases and improved test visibility. Actions included reverting unstable LLM E2E CI changes, enhancing Allure reporting and Slack notifications, and improving test filtering. E2E tests for swap flows were hardened with readiness signaling and faster provider handling, while Ledger Live end-to-end tests gained resilience with a persisted account renaming flow and a ledger sync fix. Business value includes reduced release risk, faster feedback, and higher confidence in critical user journeys.
March 2025
18 Commits • 3 Features
Mar 1, 2025March 2025 monthly summary for Ledger Live development focusing on delivering business value through robust test infrastructure, stable CLI integration, and data-driven UI experiments. Significant improvements to end-to-end testing, CI reliability, and test coverage, coupled with enhancements to Ledger Sync/CLI stability and new feature flags enabling data-driven accounts experiences. Also addressed test environment reliability and path correctness to support faster, safer releases across platforms.
18 Commits • 3 Features
Mar 1, 2025March 2025 monthly summary for Ledger Live development focusing on delivering business value through robust test infrastructure, stable CLI integration, and data-driven UI experiments. Significant improvements to end-to-end testing, CI reliability, and test coverage, coupled with enhancements to Ledger Sync/CLI stability and new feature flags enabling data-driven accounts experiences. Also addressed test environment reliability and path correctness to support faster, safer releases across platforms.
March 2025
February 2025
24 Commits • 5 Features
Feb 1, 2025February 2025 - LedgerHQ/ledger-live: Fortified test reliability and CI through a broad set of test-infra and automation improvements. Key features delivered include Detox/Speculos tooling updates, upgraded Detox, extended test coverage and screenshot handling, and CI observability enhancements. Major bugs fixed include correcting TMS links, conditional is_failed handling, and LLM Speculos ADA default delegator. Impact: reduced flaky tests, faster feedback, and improved release confidence, with stronger test-data hygiene and observability. Technologies/skills demonstrated: Detox, Speculos, XRAY reporting, iOS simulator maintenance, advanced test-data hygiene, and robust CI pipelines.
February 2025
24 Commits • 5 Features
Feb 1, 2025February 2025 - LedgerHQ/ledger-live: Fortified test reliability and CI through a broad set of test-infra and automation improvements. Key features delivered include Detox/Speculos tooling updates, upgraded Detox, extended test coverage and screenshot handling, and CI observability enhancements. Major bugs fixed include correcting TMS links, conditional is_failed handling, and LLM Speculos ADA default delegator. Impact: reduced flaky tests, faster feedback, and improved release confidence, with stronger test-data hygiene and observability. Technologies/skills demonstrated: Detox, Speculos, XRAY reporting, iOS simulator maintenance, advanced test-data hygiene, and robust CI pipelines.
January 2025
47 Commits • 8 Features
Jan 1, 2025January 2025 (LedgerHQ/ledger-live): Focused on stabilizing and expanding automated testing, enhancing CI/CD resilience, and aligning tests with production-like environments. Key outcomes include a Detox upgrade and stability fixes, widespread test reliability improvements, Speculos-enabled test coverage expansions, and CI enhancements enabling production Firebase targeting and robust artifact handling. Result: faster, more reliable release validation and higher confidence in code quality.
47 Commits • 8 Features
Jan 1, 2025January 2025 (LedgerHQ/ledger-live): Focused on stabilizing and expanding automated testing, enhancing CI/CD resilience, and aligning tests with production-like environments. Key outcomes include a Detox upgrade and stability fixes, widespread test reliability improvements, Speculos-enabled test coverage expansions, and CI enhancements enabling production Firebase targeting and robust artifact handling. Result: faster, more reliable release validation and higher confidence in code quality.
January 2025
December 2024
39 Commits • 7 Features
Dec 1, 2024December 2024: Ledger Live engineering delivered a stronger, faster, and more reliable CI/CD and test ecosystem, enabling safer releases and quicker feedback for developers. Key deliverables include stabilized CI pipelines, faster builds, expanded test coverage, and improved test reliability and observability, directly reducing release risk and accelerating platform iterations.
December 2024
39 Commits • 7 Features
Dec 1, 2024December 2024: Ledger Live engineering delivered a stronger, faster, and more reliable CI/CD and test ecosystem, enabling safer releases and quicker feedback for developers. Key deliverables include stabilized CI pipelines, faster builds, expanded test coverage, and improved test reliability and observability, directly reducing release risk and accelerating platform iterations.
November 2024
9 Commits • 2 Features
Nov 1, 2024Month: 2024-11. Summary: Delivered core mobile Ledger Sync capability with activation UI and robust end-to-end tests, expanding automated coverage for critical on-device flows. Implemented end-to-end tests for account management and discovery, and added Bitcoin receive flow testing via deep linking. Introduced CLI testing within the e2e environment to validate automation-heavy workflows. Strengthened CI stability by aligning to the develop branch and tuning timeouts to reduce flakiness. These efforts raised release readiness, reduced test-cycle time, and increased confidence in critical user journeys.
9 Commits • 2 Features
Nov 1, 2024Month: 2024-11. Summary: Delivered core mobile Ledger Sync capability with activation UI and robust end-to-end tests, expanding automated coverage for critical on-device flows. Implemented end-to-end tests for account management and discovery, and added Bitcoin receive flow testing via deep linking. Introduced CLI testing within the e2e environment to validate automation-heavy workflows. Strengthened CI stability by aligning to the develop branch and tuning timeouts to reduce flakiness. These efforts raised release readiness, reduced test-cycle time, and increased confidence in critical user journeys.
November 2024
October 2024
3 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for LedgerHQ/ledger-live focusing on delivering business value through CI reliability improvements and test infrastructure stabilization. The work emphasizes faster, more reliable iOS builds and a robust end-to-end testing framework to de-risk releases and reduce flaky tests.
October 2024
3 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for LedgerHQ/ledger-live focusing on delivering business value through CI reliability improvements and test infrastructure stabilization. The work emphasizes faster, more reliable iOS builds and a robust end-to-end testing framework to de-risk releases and reduce flaky tests.
Activity
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Quality Metrics
Correctness86.0%
Maintainability85.2%
Architecture79.0%
Performance78.4%
AI Usage21.0%
Skills & Technologies
Programming Languages
BashGradleJSONJavaScriptMarkdownShellTypeScriptUnknownYAMLjavascript
Technical Skills
API IntegrationAPI integrationAWSAllure ReporterAllure reportingAndroid DevelopmentAutomationBabel ConfigurationBash scriptingBridge CommunicationBuild OptimizationCI/CDCLI DevelopmentCLI UtilitiesCLI development
Repositories Contributed To
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