
Mateus Cechetto developed and maintained localization infrastructure for the HearthSim/HDT-Localization repository over 13 months, delivering 14 user-facing features that enhanced multilingual support and UI clarity. He implemented new string resources for game statistics, expansion content, and configuration options, focusing on scalable string management and internationalization best practices. Using XML and UI/UX design skills, Mateus centralized UI text in resource files, enabling efficient translation workflows and reducing future localization debt. His work included performance settings, deck-building labels, and arena messaging, all integrated with commit-driven development for traceability. The depth of his contributions improved global usability and streamlined future feature rollouts.

February 2026 performance summary: Focused on internationalization improvements for Mulligan sorting in the HearthSim/HDT-Localization repo. Key feature delivered: localization strings for Mulligan sorting options (by cost and winrate), enabling localized UI and consistent UX across locales. No major bugs fixed this month. Overall impact: enhances global usability, reduces locale friction for Mulligan decisions, and strengthens localization tooling and processes for future features. Technologies/skills demonstrated: internationalization (i18n), string resource management, commit-driven development, cross-repo collaboration.
February 2026 performance summary: Focused on internationalization improvements for Mulligan sorting in the HearthSim/HDT-Localization repo. Key feature delivered: localization strings for Mulligan sorting options (by cost and winrate), enabling localized UI and consistent UX across locales. No major bugs fixed this month. Overall impact: enhances global usability, reduces locale friction for Mulligan decisions, and strengthens localization tooling and processes for future features. Technologies/skills demonstrated: internationalization (i18n), string resource management, commit-driven development, cross-repo collaboration.
December 2025 monthly summary for HearthSim/HDT-Localization: Localization and UI string enhancements for expansions and card metadata. Implemented new arena reward localization strings, added missing strings for Across The Timeways expansion, and introduced a creator attribution string for card tiles. These updates improve localization coverage, UI clarity, and contextual information about card origins, supporting global usability and future expansions. While no explicit major bugs were reported this month, the work focused on strengthening internationalization, consistency of UI labels, and rich card metadata. This demonstrates a disciplined localization workflow, incremental delivery, and collaboration across repository boundaries.
December 2025 monthly summary for HearthSim/HDT-Localization: Localization and UI string enhancements for expansions and card metadata. Implemented new arena reward localization strings, added missing strings for Across The Timeways expansion, and introduced a creator attribution string for card tiles. These updates improve localization coverage, UI clarity, and contextual information about card origins, supporting global usability and future expansions. While no explicit major bugs were reported this month, the work focused on strengthening internationalization, consistency of UI labels, and rich card metadata. This demonstrates a disciplined localization workflow, incremental delivery, and collaboration across repository boundaries.
Month: 2025-10 — In HearthSim/HDT-Localization, delivered localization groundwork for two upcoming features, enabling future in-game guidance and deck discovery experiences. Key changes establish internationalization readiness and support UI text variations across locales. No major bugs fixed in this repository this month. Overall, these efforts strengthen product scalability and time-to-delivery for localized UI components.
Month: 2025-10 — In HearthSim/HDT-Localization, delivered localization groundwork for two upcoming features, enabling future in-game guidance and deck discovery experiences. Key changes establish internationalization readiness and support UI text variations across locales. No major bugs fixed in this repository this month. Overall, these efforts strengthen product scalability and time-to-delivery for localized UI components.
Monthly summary for 2025-09 focused on localization enhancements for the Arena UI in HearthSim/HDT-Localization. Delivered purely localization strings for the Arena Legendary Groups UI (display name and two risk-free checkboxes to toggle showing opponent's legendary groups) with no changes to application logic. No major bugs reported or fixed this month; effort centered on enabling multilingual support and preparing the localization pipeline. Business impact includes improved global usability and readiness for broader localization; sets the stage for future translations with minimal risk. Technologies/skills demonstrated include localization string management, repo hygiene, and isolated changes to UI text without affecting behavior.
Monthly summary for 2025-09 focused on localization enhancements for the Arena UI in HearthSim/HDT-Localization. Delivered purely localization strings for the Arena Legendary Groups UI (display name and two risk-free checkboxes to toggle showing opponent's legendary groups) with no changes to application logic. No major bugs reported or fixed this month; effort centered on enabling multilingual support and preparing the localization pipeline. Business impact includes improved global usability and readiness for broader localization; sets the stage for future translations with minimal risk. Technologies/skills demonstrated include localization string management, repo hygiene, and isolated changes to UI text without affecting behavior.
August 2025 monthly summary for HearthSim/HDT-Localization: Focused on delivering user-facing performance controls by adding hardware acceleration settings strings, enabling a toggle for hardware acceleration and a memory-crash troubleshooting tooltip. This work improves user control over performance features and reduces potential crash scenarios, aligning with product goals for stability and performance. Key outcomes include localized UI resources, streamlined user experience, and clearer guidance for performance settings in the UI across locales.
August 2025 monthly summary for HearthSim/HDT-Localization: Focused on delivering user-facing performance controls by adding hardware acceleration settings strings, enabling a toggle for hardware acceleration and a memory-crash troubleshooting tooltip. This work improves user control over performance features and reduces potential crash scenarios, aligning with product goals for stability and performance. Key outcomes include localized UI resources, streamlined user experience, and clearer guidance for performance settings in the UI across locales.
July 2025 (2025-07) — HearthSim/HDT-Localization Key features delivered: - Arenasmith Localization for The Lost City of Ungoro across the HDT-Localization repo, including UI strings, deck-builder labels, arena messaging, error handling, and expansion-specific text. This work lays the groundwork for consistent player experience as new expansions roll out. - Implemented and localized strings for deck-builder filters, arena reward packs, settings, and readability improvements to reduce user friction and improve accessibility. Major bugs fixed: - Fixed inconsistencies in Arenasmith messaging by correcting deck and pool generate strings and standardizing terminology (e.g., replacing 'look out for' with 'Cards to look for'), reducing user confusion and localization drift. - Repaired missing Arenasmith strings across settings and messages to ensure coherent UX across expansion content. Overall impact and accomplishments: - Significantly improved localization coverage and consistency across the expansion-related content, enabling a smoother customer experience for Ungoro-era features and future expansions. - Reduced future maintenance effort through standardized string resources and cross-repo coordination, with a clear path for expansion-specific text. Technologies/skills demonstrated: - Internationalization (i18n) and localization best practices, string resource management, and cross-repo collaboration. - Attention to UX readability, error handling localization, and consistent terminology across a multi-repo codebase.
July 2025 (2025-07) — HearthSim/HDT-Localization Key features delivered: - Arenasmith Localization for The Lost City of Ungoro across the HDT-Localization repo, including UI strings, deck-builder labels, arena messaging, error handling, and expansion-specific text. This work lays the groundwork for consistent player experience as new expansions roll out. - Implemented and localized strings for deck-builder filters, arena reward packs, settings, and readability improvements to reduce user friction and improve accessibility. Major bugs fixed: - Fixed inconsistencies in Arenasmith messaging by correcting deck and pool generate strings and standardizing terminology (e.g., replacing 'look out for' with 'Cards to look for'), reducing user confusion and localization drift. - Repaired missing Arenasmith strings across settings and messages to ensure coherent UX across expansion content. Overall impact and accomplishments: - Significantly improved localization coverage and consistency across the expansion-related content, enabling a smoother customer experience for Ungoro-era features and future expansions. - Reduced future maintenance effort through standardized string resources and cross-repo coordination, with a clear path for expansion-specific text. Technologies/skills demonstrated: - Internationalization (i18n) and localization best practices, string resource management, and cross-repo collaboration. - Attention to UX readability, error handling localization, and consistent terminology across a multi-repo codebase.
May 2025 – Localization groundwork for in-game statistics: added Cards Played This Turn counter string resource to HearthSim/HDT-Localization, establishing the foundation for localized statistics UI and aligning with the localization roadmap. This enables future multilingual display of stats, reduces rework for localization, and accelerates global feature delivery. No major defects fixed in this period.
May 2025 – Localization groundwork for in-game statistics: added Cards Played This Turn counter string resource to HearthSim/HDT-Localization, establishing the foundation for localized statistics UI and aligning with the localization roadmap. This enables future multilingual display of stats, reduces rework for localization, and accelerates global feature delivery. No major defects fixed in this period.
In April 2025, HearthSim/HDT-Localization expanded localization coverage and UI configurability for Emerald Dream. Delivered new string resources for Emerald Dream UI labels (game sets, rewards, filters) and introduced a new UI option string to toggle visibility of the Maximum Resources setting. Changes were implemented via two commits (031081dc348855735375c29a4acc478193d03de3; 629bbe605513c548437a0cee9137d5222913f99d). This work enhances internationalization readiness and user interface flexibility with clear, traceable change history.
In April 2025, HearthSim/HDT-Localization expanded localization coverage and UI configurability for Emerald Dream. Delivered new string resources for Emerald Dream UI labels (game sets, rewards, filters) and introduced a new UI option string to toggle visibility of the Maximum Resources setting. Changes were implemented via two commits (031081dc348855735375c29a4acc478193d03de3; 629bbe605513c548437a0cee9137d5222913f99d). This work enhances internationalization readiness and user interface flexibility with clear, traceable change history.
March 2025: Delivered localization updates for patch 32.0 in HearthSim/HDT-Localization, adding new UI strings for in-game statistics and UI elements to support the patch's localization needs. Implemented via two commits (cf4fb21060c22823884e08f19e806dd273856271; 9b3fa2ddb33e3c337f7bb7dc3c0523bf3cf61c6a). No major bugs fixed this month. Impact: improved localization coverage and user experience for multilingual players; enables smoother patch release with accurate UI display across languages. Technologies/skills demonstrated: localization string management (i18n), UI text alignment with patch 32.0, Git version control, QA validation, and cross-functional collaboration.
March 2025: Delivered localization updates for patch 32.0 in HearthSim/HDT-Localization, adding new UI strings for in-game statistics and UI elements to support the patch's localization needs. Implemented via two commits (cf4fb21060c22823884e08f19e806dd273856271; 9b3fa2ddb33e3c337f7bb7dc3c0523bf3cf61c6a). No major bugs fixed this month. Impact: improved localization coverage and user experience for multilingual players; enables smoother patch release with accurate UI display across languages. Technologies/skills demonstrated: localization string management (i18n), UI text alignment with patch 32.0, Git version control, QA validation, and cross-functional collaboration.
February 2025: Delivered a new user-facing Synergies Highlighting Configuration for HearthSim/HDT-Localization, enabling deck synergy emphasis via a configurable option and adding a localization entry to Strings.resx. The feature is wired into the deck highlighting flow and ready for QA validation. No major bugs were reported this month. This work improves user control, accessibility, and internationalization, and establishes groundwork for broader UI customization in future releases.
February 2025: Delivered a new user-facing Synergies Highlighting Configuration for HearthSim/HDT-Localization, enabling deck synergy emphasis via a configurable option and adding a localization entry to Strings.resx. The feature is wired into the deck highlighting flow and ready for QA validation. No major bugs were reported this month. This work improves user control, accessibility, and internationalization, and establishes groundwork for broader UI customization in future releases.
January 2025 performance summary for HearthSim/HDT-Localization focusing on localization expansion and new UI stat display. Delivered a key feature to support Protoss Minions Cost Reduction by updating UI text localization and adding the necessary string to display the new stat in the UI. No critical bugs fixed this month; no regressions observed. The work reduces localization maintenance for upcoming mechanics and improves player-facing data accuracy in the UI.
January 2025 performance summary for HearthSim/HDT-Localization focusing on localization expansion and new UI stat display. Delivered a key feature to support Protoss Minions Cost Reduction by updating UI text localization and adding the necessary string to display the new stat in the UI. No critical bugs fixed this month; no regressions observed. The work reduces localization maintenance for upcoming mechanics and improves player-facing data accuracy in the UI.
December 2024: Localization delivery for Undead Attack Bonus in HearthSim/HDT-Localization. Added a new localized string resource for the Undead Attack Bonus to be used in the UI, following existing i18n conventions. This work improves accessibility and user experience for non-English players and prepares the ground for broader localization coverage in subsequent releases. Commit: 2f89ce622c72166a33a7c2a4bb34adad78bf49ca.
December 2024: Localization delivery for Undead Attack Bonus in HearthSim/HDT-Localization. Added a new localized string resource for the Undead Attack Bonus to be used in the UI, following existing i18n conventions. This work improves accessibility and user experience for non-English players and prepares the ground for broader localization coverage in subsequent releases. Commit: 2f89ce622c72166a33a7c2a4bb34adad78bf49ca.
November 2024: Delivered a localization-ready string resource for the 'Cards Drawn This Turn' counter in the Game Statistics UI for the HearthSim/HDT-Localization repo. This work enables accurate display and translation of the counter across locales, aligning with the localization roadmap and improving user experience across languages. No major bugs fixed in this repository during the month. The implementation increases UI clarity, ensures consistent metric presentation, and reduces future localization effort by centralizing the text in resource strings. Technologies and skills demonstrated include localization resource management, string table/resource handling, UI string binding, and commit-driven development with clear traceability.
November 2024: Delivered a localization-ready string resource for the 'Cards Drawn This Turn' counter in the Game Statistics UI for the HearthSim/HDT-Localization repo. This work enables accurate display and translation of the counter across locales, aligning with the localization roadmap and improving user experience across languages. No major bugs fixed in this repository during the month. The implementation increases UI clarity, ensures consistent metric presentation, and reduces future localization effort by centralizing the text in resource strings. Technologies and skills demonstrated include localization resource management, string table/resource handling, UI string binding, and commit-driven development with clear traceability.
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