victronenergy/gui-v2
Oct 2024 – Oct 2025
13 Months active
Languages Used
JavaScriptQMLC++CMakeGitHTMLSVGJSON
Technical Skills
Embedded SystemsFrontend DevelopmentJavaScript DevelopmentQML DevelopmentUI DevelopmentAPI Design
Bea Lam
PROFILE
Bea Lam
Bea Lam developed and maintained the victronenergy/gui-v2 repository, delivering a robust, scalable embedded UI for device management and monitoring. Over 13 months, Bea migrated core data models from QML to C++ for improved performance and reliability, modularized the codebase, and enhanced user experience with refined navigation, keyboard accessibility, and responsive layouts. She implemented features such as AC input handling, device drilldowns, and switch control synchronization, while addressing stability and lifecycle issues across desktop and Wasm builds. Using C++, QML, and JavaScript, Bea’s work demonstrated deep architectural understanding and resulted in a maintainable, production-ready system with reduced technical debt.
Overall Statistics
Feature vs Bugs
66%Features
Repository Contributions
471Total
Bugs
103
Commits
471
Features
196
Lines of code
74,095
Activity Months13
Your Network
24 people
Work History
October 2025
34 Commits • 17 Features
Oct 1, 2025Concise monthly summary for 2025-10 focusing on delivery, impact, and technical achievements for victronenergy/gui-v2.
34 Commits • 17 Features
Oct 1, 2025Concise monthly summary for 2025-10 focusing on delivery, impact, and technical achievements for victronenergy/gui-v2.
October 2025
September 2025
49 Commits • 22 Features
Sep 1, 2025Month: 2025-09 Overview: Delivered a targeted set of performance, stability, and UX improvements across victronenergy/gui-v2. The work focused on migrating compute-heavy models to C++, hardening lifecycle around UI data provisioning, and enhancing the Switches UI with more robust controls. The efforts reduced data churn, improved responsiveness, and delivered clearer, more reliable user interactions in both desktop and Wasm environments. Business value includes faster model updates, fewer stale UI states, and a cleaner codebase that supports future feature delivery at scale. Key features delivered: - Migrated core models to C++: SolarInputModel, SolarYieldModel, Global dcInputs, and Global EvChargers. Commits: f3a193d9b5056f7e85549d721166d6d1396a5e67; 53717551e24087325f6462450234148c2e6d31c6; 15e4e614c3a30d0e6c52c963a96677d29dfdfb56; 881a22d556a8e7bb6f291275d6a96a0a5816f0fe. Outcome: reduced model updates, improved performance and stability. - Overview UI improvements for single-phase systems: drilldowns disabled/omitted when no devices are present. Commits: 18f359e2a6e25db0a866ae59ddccaeb47130d764; d6884fec6eacca99b64aec50bb0e7b217bac80d8. Impact: clearer UX and fewer irrelevant drilldowns. - Switches/UI enhancements and refactors: added Basic Slider; reworked slider implementations; populated Global.switches.groups from C++; moved switch components to dedicated files. Commits: f46f6b7ec4f8f3aa38108582864e07b12059b562; 74acc4e05d982e40e353a7e63fbea7eb45a5d33b; d44cdc7263002232cd5f38905225249708e8c226. Impact: improved UX consistency and maintainability. - UI controls and data presentation improvements: Button colours simplified; Dropdown labels now read from array; scroll-to-last breadcrumb on changes; spinboxes restricted to numeric input. Commits: 6c8b51b946f315487c4a8388e9dd2183cd464255; 32255e4cd1df41e3851018ea22da12a5602115f0; 3bbea8d7b532bbd256af0e680d43d7f84edf548e; 58479a1a2d0ebd55fcfc59f5a6f18e25a6de7390. Impact: more intuitive UI and fewer input errors. - EV Charger improvements: sensible min/max defaults for charge current; accurate current display. Commits: 5a409f9637dad24588a2424f31db1f39f5c26086; 47154a2347dbbf9f94aa0e0d238153ee21ef6ea2. Impact: safer defaults and improved data accuracy for charging scenarios. - Code quality and maintenance: formatting cleanup; version bump to v1.2.10; reduced global object dependencies; beginInsertRows fixes. Commits: f0066f527abee498de7b633f5bdef989eba040f6; 6092dbc97c8bcaa1f27212014f45f56fcf951450; 41875ffcb7d74da6f6bcd07fefbf0d859cdc71bd; a9e3267849ecae8db0978d88c4e560ac38ac94d4; 979091aebc1860f4ff8a231f3583d6876829beba. Major bugs fixed: - Model lifecycle and data provisioning: unparent VisualItemModel items when unused; do not provide device to SolarDevicePage and PvInverterPage; ensure AllServiceModel clears services on reset. Commits: c44810969284eed2547a120500799a67cb2d5997; 548e041eb7677bbcd1b3a020b53645b79e36a11b; 2f4ca41c0d7422e2f2da9c0c748f769f87a8d459. Impact: reduced stale data and safer navigation/state transitions. - Solar history data correctness: ensure per-tracker data is accurate in the table view. Commit: 2f3d2d6285e35d4d03b1556957eb9347856dfbd0. Impact: trustable historical data in UI. - Input/display synchronization fixes: SpinBox decimal display corrected; switch pane input stays usable when values are out of sync. Commits: 8df86ec83a7112caf4e24b7c2b79470ae27dbe28; 1cb8390cd4313d38e270a700f4e4c474a7a3b515. Impact: fewer user-facing input glitches. - UI stability fixes: fixed Dropdown height; auto-scroll on Mobile Wasm focus; EV charger clamped value; AC In warning suppression; injected notifications visibility. Commits: 768804cacb1da0d124bdf91341fe202f90aea2ea; 254e879af1004087c973f5dcd749e9f4d10771ed; 47154a2347dbbf9f94aa0e0d238153ee21ef6ea2; 61d642de4526a29507f7ce8b548f64ec1502711d; 12aece065b27f36b5efcae6e847146fe7cbb2472. Impact: smoother UI behavior across devices and fewer distracting warnings. Overall impact and accomplishments: - Technical: substantial migration of core models to C++ delivering lower update frequency and improved runtime; extensive UI/UX refinements for single-phase systems; refactored Switches codebase for better maintainability; comprehensive code hygiene and versioning updates that ease future feature work. - Business value: faster, more reliable data-processing paths; improved user satisfaction with responsive UI and fewer erroneous states; reduced risk of stale data and regression through lifecycle hardening; enhanced developer productivity via clearer component boundaries and better testability. Technologies/skills demonstrated: - C++ model migration and integration with Qt/QML-based UI layers - UI/UX design for device-presence-aware drilldowns and robust input controls - Codebase hygiene: refactoring, modularization, and versioning discipline - Bug isolation and regression testing across Wasm/desktop builds
September 2025
49 Commits • 22 Features
Sep 1, 2025Month: 2025-09 Overview: Delivered a targeted set of performance, stability, and UX improvements across victronenergy/gui-v2. The work focused on migrating compute-heavy models to C++, hardening lifecycle around UI data provisioning, and enhancing the Switches UI with more robust controls. The efforts reduced data churn, improved responsiveness, and delivered clearer, more reliable user interactions in both desktop and Wasm environments. Business value includes faster model updates, fewer stale UI states, and a cleaner codebase that supports future feature delivery at scale. Key features delivered: - Migrated core models to C++: SolarInputModel, SolarYieldModel, Global dcInputs, and Global EvChargers. Commits: f3a193d9b5056f7e85549d721166d6d1396a5e67; 53717551e24087325f6462450234148c2e6d31c6; 15e4e614c3a30d0e6c52c963a96677d29dfdfb56; 881a22d556a8e7bb6f291275d6a96a0a5816f0fe. Outcome: reduced model updates, improved performance and stability. - Overview UI improvements for single-phase systems: drilldowns disabled/omitted when no devices are present. Commits: 18f359e2a6e25db0a866ae59ddccaeb47130d764; d6884fec6eacca99b64aec50bb0e7b217bac80d8. Impact: clearer UX and fewer irrelevant drilldowns. - Switches/UI enhancements and refactors: added Basic Slider; reworked slider implementations; populated Global.switches.groups from C++; moved switch components to dedicated files. Commits: f46f6b7ec4f8f3aa38108582864e07b12059b562; 74acc4e05d982e40e353a7e63fbea7eb45a5d33b; d44cdc7263002232cd5f38905225249708e8c226. Impact: improved UX consistency and maintainability. - UI controls and data presentation improvements: Button colours simplified; Dropdown labels now read from array; scroll-to-last breadcrumb on changes; spinboxes restricted to numeric input. Commits: 6c8b51b946f315487c4a8388e9dd2183cd464255; 32255e4cd1df41e3851018ea22da12a5602115f0; 3bbea8d7b532bbd256af0e680d43d7f84edf548e; 58479a1a2d0ebd55fcfc59f5a6f18e25a6de7390. Impact: more intuitive UI and fewer input errors. - EV Charger improvements: sensible min/max defaults for charge current; accurate current display. Commits: 5a409f9637dad24588a2424f31db1f39f5c26086; 47154a2347dbbf9f94aa0e0d238153ee21ef6ea2. Impact: safer defaults and improved data accuracy for charging scenarios. - Code quality and maintenance: formatting cleanup; version bump to v1.2.10; reduced global object dependencies; beginInsertRows fixes. Commits: f0066f527abee498de7b633f5bdef989eba040f6; 6092dbc97c8bcaa1f27212014f45f56fcf951450; 41875ffcb7d74da6f6bcd07fefbf0d859cdc71bd; a9e3267849ecae8db0978d88c4e560ac38ac94d4; 979091aebc1860f4ff8a231f3583d6876829beba. Major bugs fixed: - Model lifecycle and data provisioning: unparent VisualItemModel items when unused; do not provide device to SolarDevicePage and PvInverterPage; ensure AllServiceModel clears services on reset. Commits: c44810969284eed2547a120500799a67cb2d5997; 548e041eb7677bbcd1b3a020b53645b79e36a11b; 2f4ca41c0d7422e2f2da9c0c748f769f87a8d459. Impact: reduced stale data and safer navigation/state transitions. - Solar history data correctness: ensure per-tracker data is accurate in the table view. Commit: 2f3d2d6285e35d4d03b1556957eb9347856dfbd0. Impact: trustable historical data in UI. - Input/display synchronization fixes: SpinBox decimal display corrected; switch pane input stays usable when values are out of sync. Commits: 8df86ec83a7112caf4e24b7c2b79470ae27dbe28; 1cb8390cd4313d38e270a700f4e4c474a7a3b515. Impact: fewer user-facing input glitches. - UI stability fixes: fixed Dropdown height; auto-scroll on Mobile Wasm focus; EV charger clamped value; AC In warning suppression; injected notifications visibility. Commits: 768804cacb1da0d124bdf91341fe202f90aea2ea; 254e879af1004087c973f5dcd749e9f4d10771ed; 47154a2347dbbf9f94aa0e0d238153ee21ef6ea2; 61d642de4526a29507f7ce8b548f64ec1502711d; 12aece065b27f36b5efcae6e847146fe7cbb2472. Impact: smoother UI behavior across devices and fewer distracting warnings. Overall impact and accomplishments: - Technical: substantial migration of core models to C++ delivering lower update frequency and improved runtime; extensive UI/UX refinements for single-phase systems; refactored Switches codebase for better maintainability; comprehensive code hygiene and versioning updates that ease future feature work. - Business value: faster, more reliable data-processing paths; improved user satisfaction with responsive UI and fewer erroneous states; reduced risk of stale data and regression through lifecycle hardening; enhanced developer productivity via clearer component boundaries and better testability. Technologies/skills demonstrated: - C++ model migration and integration with Qt/QML-based UI layers - UI/UX design for device-presence-aware drilldowns and robust input controls - Codebase hygiene: refactoring, modularization, and versioning discipline - Bug isolation and regression testing across Wasm/desktop builds
August 2025
53 Commits • 21 Features
Aug 1, 2025August 2025: Delivered targeted UX improvements and architectural migrations in gui-v2, focusing on data model alignment, analytics drilldowns, UI polish, and startup/performance stability. The work enhances business value by improving data accuracy, navigation efficiency, and runtime reliability across desktop and device builds.
53 Commits • 21 Features
Aug 1, 2025August 2025: Delivered targeted UX improvements and architectural migrations in gui-v2, focusing on data model alignment, analytics drilldowns, UI polish, and startup/performance stability. The work enhances business value by improving data accuracy, navigation efficiency, and runtime reliability across desktop and device builds.
August 2025
July 2025
40 Commits • 15 Features
Jul 1, 2025July 2025 (victronenergy/gui-v2) focused on strengthening testing realism, stabilizing UI behavior, and expanding device integration. Delivered major mock backend improvements for offline testing, extensive mock/config enhancements, and a set of UI/navigation and terminology upgrades that improve business value by reducing cycle time, improving reliability, and clarifying domain concepts. Notable outcomes include more accurate simulations, improved keyboard navigation, and more predictable layouts when conditions or device states change.
July 2025
40 Commits • 15 Features
Jul 1, 2025July 2025 (victronenergy/gui-v2) focused on strengthening testing realism, stabilizing UI behavior, and expanding device integration. Delivered major mock backend improvements for offline testing, extensive mock/config enhancements, and a set of UI/navigation and terminology upgrades that improve business value by reducing cycle time, improving reliability, and clarifying domain concepts. Notable outcomes include more accurate simulations, improved keyboard navigation, and more predictable layouts when conditions or device states change.
June 2025
34 Commits • 12 Features
Jun 1, 2025June 2025: Focused on data-model robustness, modularization, and stability across victronenergy/gui-v2. Delivered a data-structure overhaul for quantity models, comprehensive QML modularization, centralized notifications, service-model refactor for multi-service support, and architecture cleanup that reduces maintenance and runtime dependencies. These changes improve reliability, enable faster feature delivery, and align with the roadmap for scalable UI and data modeling.
34 Commits • 12 Features
Jun 1, 2025June 2025: Focused on data-model robustness, modularization, and stability across victronenergy/gui-v2. Delivered a data-structure overhaul for quantity models, comprehensive QML modularization, centralized notifications, service-model refactor for multi-service support, and architecture cleanup that reduces maintenance and runtime dependencies. These changes improve reliability, enable faster feature delivery, and align with the roadmap for scalable UI and data modeling.
June 2025
May 2025
48 Commits • 26 Features
May 1, 2025May 2025 delivers usable features, stability improvements, and a clearer UX in victronenergy/gui-v2. Key features include Pulse meter setup improvements with Inverted and Multiplier configurability and decimal precision; backend-UI switch pane synchronization for buttons and dimming sliders; AC inputs/Heatpump integration with dedicated roles and Type lookups cleanup; start-page enhancements including Boat option and CommonWords updates, plus a version bump to v1.1.13. Reliability and quality improvements reduced startup noise and improved page behavior through targeted fixes (empty cards for disabled generators, accurate AC input display on limit changes, startup UID warnings, and auto-start-page/backbone cleanups).
May 2025
48 Commits • 26 Features
May 1, 2025May 2025 delivers usable features, stability improvements, and a clearer UX in victronenergy/gui-v2. Key features include Pulse meter setup improvements with Inverted and Multiplier configurability and decimal precision; backend-UI switch pane synchronization for buttons and dimming sliders; AC inputs/Heatpump integration with dedicated roles and Type lookups cleanup; start-page enhancements including Boat option and CommonWords updates, plus a version bump to v1.1.13. Reliability and quality improvements reduced startup noise and improved page behavior through targeted fixes (empty cards for disabled generators, accurate AC input display on limit changes, startup UID warnings, and auto-start-page/backbone cleanups).
April 2025
35 Commits • 12 Features
Apr 1, 2025April 2025: Consolidated a broad set of UI, UX, and reliability improvements in victronenergy/gui-v2, delivering features that enhance device control, visibility, and release readiness while strengthening stability across components.
35 Commits • 12 Features
Apr 1, 2025April 2025: Consolidated a broad set of UI, UX, and reliability improvements in victronenergy/gui-v2, delivering features that enhance device control, visibility, and release readiness while strengthening stability across components.
April 2025
March 2025
33 Commits • 15 Features
Mar 1, 2025March 2025: Delivered UI enhancements, new data models, and reliability improvements for victronenergy/gui-v2. Key features delivered include Settings UI enhancements with navigation and column visibility, new battery data models and delegates, naming consistency for list variant buttons, and improved gauges/visualization. Architectural and quality upgrades establish a more scalable device model and testing foundation, supporting maintainability and release readiness. Versioned releases were prepared with stability fixes included for a smooth upgrade path.
March 2025
33 Commits • 15 Features
Mar 1, 2025March 2025: Delivered UI enhancements, new data models, and reliability improvements for victronenergy/gui-v2. Key features delivered include Settings UI enhancements with navigation and column visibility, new battery data models and delegates, naming consistency for list variant buttons, and improved gauges/visualization. Architectural and quality upgrades establish a more scalable device model and testing foundation, supporting maintainability and release readiness. Versioned releases were prepared with stability fixes included for a smooth upgrade path.
February 2025
32 Commits • 15 Features
Feb 1, 2025February 2025 (victronenergy/gui-v2): Focused on data quality, UX polish, and stability to accelerate user value realization across VRM, solar data, and brief UI components. This month delivered corrected VRM device name loading, custom naming support, and PVOn phase totals via ObjectAcConnection, improving data accuracy and device identification in dashboards.
32 Commits • 15 Features
Feb 1, 2025February 2025 (victronenergy/gui-v2): Focused on data quality, UX polish, and stability to accelerate user value realization across VRM, solar data, and brief UI components. This month delivered corrected VRM device name loading, custom naming support, and PVOn phase totals via ObjectAcConnection, improving data accuracy and device identification in dashboards.
February 2025
January 2025
30 Commits • 10 Features
Jan 1, 2025January 2025: Delivered a comprehensive UI/UX and data-model refresh for victronenergy/gui-v2, focusing on usability, performance, and scalable device management. Major features include a List UI/navigation overhaul with a new VisibleItemModel, ListLink, and refined ListItem layout; a global solar devices data model with updated device navigation; and performance and cleanup efforts across SolarDeviceList and VRM/DC input handling. Additionally, the release relocates Display units and GPS units to display settings, adds QuantityObjectModel for typed quantities, and bumps the version to v1.1.3 with history page title optimization for clarity. The work lays a foundation for scalable device management, improved consistency across pages, and faster, more predictable UI interactions.
January 2025
30 Commits • 10 Features
Jan 1, 2025January 2025: Delivered a comprehensive UI/UX and data-model refresh for victronenergy/gui-v2, focusing on usability, performance, and scalable device management. Major features include a List UI/navigation overhaul with a new VisibleItemModel, ListLink, and refined ListItem layout; a global solar devices data model with updated device navigation; and performance and cleanup efforts across SolarDeviceList and VRM/DC input handling. Additionally, the release relocates Display units and GPS units to display settings, adds QuantityObjectModel for typed quantities, and bumps the version to v1.1.3 with history page title optimization for clarity. The work lays a foundation for scalable device management, improved consistency across pages, and faster, more predictable UI interactions.
December 2024
28 Commits • 7 Features
Dec 1, 2024Monthly work summary for 2024-12 focused on features delivered, bugs fixed, and impact for victronenergy/gui-v2. The work centered on streamlining the device model architecture, UI/UX refinements, and global model cleanup to reduce maintenance burden and improve product quality.
28 Commits • 7 Features
Dec 1, 2024Monthly work summary for 2024-12 focused on features delivered, bugs fixed, and impact for victronenergy/gui-v2. The work centered on streamlining the device model architecture, UI/UX refinements, and global model cleanup to reduce maintenance burden and improve product quality.
December 2024
November 2024
53 Commits • 23 Features
Nov 1, 2024November 2024 performance summary for victronenergy/gui-v2: Delivered a comprehensive upgrade across AC input handling, UI polish, and project architecture, driving reliability, usability, and maintainability. Key outcomes include more reliable AC input detection across multiple inputs, consistent monitoring of all AC inputs, and multi-phase support. The work enabled clearer user feedback in Overview and Brief panels with new indicators and prioritized AC inputs, along with stability enhancements that reduce flicker and undefined states. The project also advanced through major refactors and release hygiene, including service-UID-based loading, per-service delegation, and API cleanup, setting a scalable foundation for future features. Major features and improvements implemented in 2024-11: - AC input handling: improved ActiveIn-based detection (primary determinant) with updates to AC input details on any system AC info change; continue monitoring both inputs and support multiple phases when phase count is unknown; show both AC-in 1 and AC-in 2 when needed; remove global active input state as part of refactor. - UI/UX enhancements: Overview animations for AC loads connecting to EVCS; highlighted AC input indicators for Brief/Overview; improved readability with ListItem spacing; prioritization changes showing Grid/Shore first in Overview; prevented undefined phase flicker and ensured phase name stability; inferred AC direction icon behavior (opacity when power is 0). - Architecture and API cleanups: migrated to per-service delegate loading and service UID-driven pages; comprehensive API item renaming and directory reorganization; VeBus and Charger Pages loading improvements to rely on service UID; codebase refactor to remove legacy global state. - Release and branding: version bumps to v1.0.5 and v1.0.7, VRM Portal branding changes, demo image loading; release housekeeping. - Reliability and data quality: MQTT non-leaf items cannot go Offline; respect write access in UI controls; improved mock data quality for tests and demos; multi-phase solar totals shown in watts in Solar overview. Technologies/skills demonstrated: frontend QML/UI refinements, robust state management, service UID-based architecture, per-service loading patterns, API cleanup and refactoring, data modeling improvements, and release engineering. Overall impact: These changes reduce user confusion, improve real-time feedback and reliability, enable smoother future enhancements, and accelerate time-to-value for new features while stabilizing the codebase for production use.
November 2024
53 Commits • 23 Features
Nov 1, 2024November 2024 performance summary for victronenergy/gui-v2: Delivered a comprehensive upgrade across AC input handling, UI polish, and project architecture, driving reliability, usability, and maintainability. Key outcomes include more reliable AC input detection across multiple inputs, consistent monitoring of all AC inputs, and multi-phase support. The work enabled clearer user feedback in Overview and Brief panels with new indicators and prioritized AC inputs, along with stability enhancements that reduce flicker and undefined states. The project also advanced through major refactors and release hygiene, including service-UID-based loading, per-service delegation, and API cleanup, setting a scalable foundation for future features. Major features and improvements implemented in 2024-11: - AC input handling: improved ActiveIn-based detection (primary determinant) with updates to AC input details on any system AC info change; continue monitoring both inputs and support multiple phases when phase count is unknown; show both AC-in 1 and AC-in 2 when needed; remove global active input state as part of refactor. - UI/UX enhancements: Overview animations for AC loads connecting to EVCS; highlighted AC input indicators for Brief/Overview; improved readability with ListItem spacing; prioritization changes showing Grid/Shore first in Overview; prevented undefined phase flicker and ensured phase name stability; inferred AC direction icon behavior (opacity when power is 0). - Architecture and API cleanups: migrated to per-service delegate loading and service UID-driven pages; comprehensive API item renaming and directory reorganization; VeBus and Charger Pages loading improvements to rely on service UID; codebase refactor to remove legacy global state. - Release and branding: version bumps to v1.0.5 and v1.0.7, VRM Portal branding changes, demo image loading; release housekeeping. - Reliability and data quality: MQTT non-leaf items cannot go Offline; respect write access in UI controls; improved mock data quality for tests and demos; multi-phase solar totals shown in watts in Solar overview. Technologies/skills demonstrated: frontend QML/UI refinements, robust state management, service UID-based architecture, per-service loading patterns, API cleanup and refactoring, data modeling improvements, and release engineering. Overall impact: These changes reduce user confusion, improve real-time feedback and reliability, enable smoother future enhancements, and accelerate time-to-value for new features while stabilizing the codebase for production use.
October 2024
2 Commits • 1 Features
Oct 1, 2024October 2024: Focused frontend improvements in victronenergy/gui-v2 delivering navigation enhancements, internal naming stabilization, and onboarding robustness. The changes improve user flow, device management consistency, and onboarding relevance across devices.
2 Commits • 1 Features
Oct 1, 2024October 2024: Focused frontend improvements in victronenergy/gui-v2 delivering navigation enhancements, internal naming stabilization, and onboarding robustness. The changes improve user flow, device management consistency, and onboarding relevance across devices.
October 2024
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Quality Metrics
Correctness91.2%
Maintainability90.2%
Architecture88.2%
Performance87.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++CMakeGitHTMLJSONJavaScriptMarkdownPythonQMLSVG
Technical Skills
API DesignAPI IntegrationAccess ControlBackend DevelopmentBackend IntegrationBug FixingBuild SystemBuild System ConfigurationBuild System ManagementBuild SystemsC++C++ DevelopmentCMakeCode CleanupCode Consistency
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