
Morgan Merzouk developed and maintained the betagouv/reno platform, delivering a robust suite of eligibility, simulation, and analytics features for energy renovation aid. He architected complex UI/UX flows using React and TypeScript, integrating DSFR design system components for accessibility and consistency. His work included API development and integration, data modeling for DPE and financial modules, and policy logic with Publicodes. By refactoring core modules, improving address-driven workflows, and implementing analytics tracking, Morgan enhanced user decision-making and platform reliability. The depth of his engineering is reflected in maintainable code, responsive interfaces, and seamless data flows that support evolving business requirements.

Monthly summary for 2025-10 - betagouv/reno. Key features delivered: - Badge icon customization: added and customizable the success badge icon. (Commits: df4429615bd21fcf1bbab207305decd179cc4d9d; 5adda781c8e92daf006c9cb967c99d8086bb0db5) - CTA improvements on eligibility page: enhanced CTAs and resolved merge issues to reduce friction in the eligibility flow. (Commit: c81fd4691d8d1dd6c4d9c18cc5c9610383b82462) - Simulation results page warning and results page reorganization: added a simulation warning and reorganized sections (loans, gestures, various aids, not eligible) for clearer decisioning. (Commits: 004c5091f17d199bd00e5986d19861eb00addf65; de57d13a0d469542b883585eb0494ddbbcd6abac) - Sharing capabilities implemented: added sharing buttons for content/assets and for the frise timeline, including background enhancements. (Commits: b480d4a202a825e6b680a1baacf4f5100c9be9ed; fb309ee625dd8c036b5dbb12755d5c98f26723af; 895a4f841eb415349f1c2aab249657fc206ca219; c35f72ad546c6931deea85c65faa3a7559e2a862) - Frise/Timeline UI enhancements with accessibility and dark mode improvements: improved contrast, dark mode support, and general UI polish for the frise timeline and eligibility components. (Commits: 381ea910cb2fa0231903d4b506f6400de4a5ab9f; 3369ffd0522cb724be885ea53888a55a85c5ca08; 432972c4877a5039670d24d04390a1d2508bd259) Major bugs fixed: - Transformation rate calculation: corrected the funnel/transformation rate measurement to trigger on the correct user action (on click of find my advisor rather than on eligibility). (Commit: db960bfc56580a23713e85dbf1064a7bebdf23eb) - Internal stats: fixed transformation rate calculation in internal stats. (Commit: 309fd1baa04d8d2927927e2096cba4deb6be9983) - MPR PA throttling warning: added a warning for MPR PA throttling to improve user guidance and avoid false expectations. (Commit: 5273a4491bede300f9ae688317e9751d598a9566) - Frise background: fixed background rendering issue on the frise timeline. (Commit: 432972c4877a5039670d24d04390a1d2508bd259) - Copropriété residency condition: corrected bug where the number of dwellings was incorrectly required for the residency condition. (Commit: a36e7b31579e5a5ff8e1329c1e1b2d08f0fb5767) - Date retrieval: fixed retrieval of today's date. (Commit: d3451ccf377cbf3c0ecc2c3c8c46eba7d84236c4) - Unused parameter removal: removed an unused pathname parameter to simplify the API. (Commit: 5ea1c729d433edf08e0dc95dcc0b3fb548a3d663) - UI typos: fixed typographical errors in UI text and in the LeBonCoin logo. (Commits: 481e6d3954f0f40c062744e5f86f96098aa0d7c1; a66ddfcdf3eb1b9d0868eb6d23bda4a407baa530) Overall impact and accomplishments: The month delivered substantial UX and reliability gains that directly improve user conversion and trust. Users experience clearer eligibility decisions, faster access to key actions via improved CTAs, and stronger confidence from explicit simulation warnings. The ability to share simulations and content increases reach and potential conversions. Accessibility and dark mode enhancements ensure inclusivity across diverse user contexts, while data continuity improvements (like persisting simulation dates) support consistent analytics and user sessions. Overall, technical debt reduction and UI polish reduce maintenance costs and accelerate future feature delivery. Technologies/skills demonstrated: - Frontend UI/UX design and React-based component polishing (eligibility, frise, results pages) - Accessibility and color contrast improvements, plus dark mode support - Metrics and analytics reliability (transformation rate calculations and internal stats) - Feature gating and merge conflict resolution in a cross-functional team context - Content sharing mechanisms and social/content integrations
Monthly summary for 2025-10 - betagouv/reno. Key features delivered: - Badge icon customization: added and customizable the success badge icon. (Commits: df4429615bd21fcf1bbab207305decd179cc4d9d; 5adda781c8e92daf006c9cb967c99d8086bb0db5) - CTA improvements on eligibility page: enhanced CTAs and resolved merge issues to reduce friction in the eligibility flow. (Commit: c81fd4691d8d1dd6c4d9c18cc5c9610383b82462) - Simulation results page warning and results page reorganization: added a simulation warning and reorganized sections (loans, gestures, various aids, not eligible) for clearer decisioning. (Commits: 004c5091f17d199bd00e5986d19861eb00addf65; de57d13a0d469542b883585eb0494ddbbcd6abac) - Sharing capabilities implemented: added sharing buttons for content/assets and for the frise timeline, including background enhancements. (Commits: b480d4a202a825e6b680a1baacf4f5100c9be9ed; fb309ee625dd8c036b5dbb12755d5c98f26723af; 895a4f841eb415349f1c2aab249657fc206ca219; c35f72ad546c6931deea85c65faa3a7559e2a862) - Frise/Timeline UI enhancements with accessibility and dark mode improvements: improved contrast, dark mode support, and general UI polish for the frise timeline and eligibility components. (Commits: 381ea910cb2fa0231903d4b506f6400de4a5ab9f; 3369ffd0522cb724be885ea53888a55a85c5ca08; 432972c4877a5039670d24d04390a1d2508bd259) Major bugs fixed: - Transformation rate calculation: corrected the funnel/transformation rate measurement to trigger on the correct user action (on click of find my advisor rather than on eligibility). (Commit: db960bfc56580a23713e85dbf1064a7bebdf23eb) - Internal stats: fixed transformation rate calculation in internal stats. (Commit: 309fd1baa04d8d2927927e2096cba4deb6be9983) - MPR PA throttling warning: added a warning for MPR PA throttling to improve user guidance and avoid false expectations. (Commit: 5273a4491bede300f9ae688317e9751d598a9566) - Frise background: fixed background rendering issue on the frise timeline. (Commit: 432972c4877a5039670d24d04390a1d2508bd259) - Copropriété residency condition: corrected bug where the number of dwellings was incorrectly required for the residency condition. (Commit: a36e7b31579e5a5ff8e1329c1e1b2d08f0fb5767) - Date retrieval: fixed retrieval of today's date. (Commit: d3451ccf377cbf3c0ecc2c3c8c46eba7d84236c4) - Unused parameter removal: removed an unused pathname parameter to simplify the API. (Commit: 5ea1c729d433edf08e0dc95dcc0b3fb548a3d663) - UI typos: fixed typographical errors in UI text and in the LeBonCoin logo. (Commits: 481e6d3954f0f40c062744e5f86f96098aa0d7c1; a66ddfcdf3eb1b9d0868eb6d23bda4a407baa530) Overall impact and accomplishments: The month delivered substantial UX and reliability gains that directly improve user conversion and trust. Users experience clearer eligibility decisions, faster access to key actions via improved CTAs, and stronger confidence from explicit simulation warnings. The ability to share simulations and content increases reach and potential conversions. Accessibility and dark mode enhancements ensure inclusivity across diverse user contexts, while data continuity improvements (like persisting simulation dates) support consistent analytics and user sessions. Overall, technical debt reduction and UI polish reduce maintenance costs and accelerate future feature delivery. Technologies/skills demonstrated: - Frontend UI/UX design and React-based component polishing (eligibility, frise, results pages) - Accessibility and color contrast improvements, plus dark mode support - Metrics and analytics reliability (transformation rate calculations and internal stats) - Feature gating and merge conflict resolution in a cross-functional team context - Content sharing mechanisms and social/content integrations
September 2025 (betagouv/reno) delivered substantial feature growth, improved eligibility modeling, and code hygiene enhancements, with a clear emphasis on business value and maintainability. The work strengthened subsidy calculations, expanded MPA/MPLD coverage, and improved user experience and accessibility while reducing technical debt and stabilizing the platform.
September 2025 (betagouv/reno) delivered substantial feature growth, improved eligibility modeling, and code hygiene enhancements, with a clear emphasis on business value and maintainability. The work strengthened subsidy calculations, expanded MPA/MPLD coverage, and improved user experience and accessibility while reducing technical debt and stabilizing the platform.
Month: 2025-08 | Repository: betagouv/reno Concise monthly summary of key business value and technical achievements for August 2025. Overall: Delivered targeted UI/UX improvements to streamline onboarding, reinforced compliance with a new mentions légales page, and hardened core flows with critical bug fixes. Strengthened accessibility, DSFR integration, and responsive design across forms and workflow components, contributing to higher completion rates, reduced user confusion, and a more robust, maintainable codebase.
Month: 2025-08 | Repository: betagouv/reno Concise monthly summary of key business value and technical achievements for August 2025. Overall: Delivered targeted UI/UX improvements to streamline onboarding, reinforced compliance with a new mentions légales page, and hardened core flows with critical bug fixes. Strengthened accessibility, DSFR integration, and responsive design across forms and workflow components, contributing to higher completion rates, reduced user confusion, and a more robust, maintainable codebase.
July 2025 monthly summary for betagouv/reno focused on delivering business value through feature delivery, UI modernization, and stabilization. Key work included enabling energy efficiency assessments via the Energy audit feature, consolidating MaPrimeAdapt with expanded MPA aids, and migrating the UI to the DSFR Design System for consistent accessibility and design. Eligibility workflows were enhanced with validation improvements, address pre-fill optimizations, and analytics tracking to measure user interactions. Numerous bug fixes and reliability improvements (build stability, merge conflict resolution, and minor HTML/typo fixes) contributed to a smoother user experience and faster delivery cycles. The month demonstrates strong frontend craftsmanship, robust integration work, and improved measurement of user interactions for data-driven decisions.
July 2025 monthly summary for betagouv/reno focused on delivering business value through feature delivery, UI modernization, and stabilization. Key work included enabling energy efficiency assessments via the Energy audit feature, consolidating MaPrimeAdapt with expanded MPA aids, and migrating the UI to the DSFR Design System for consistent accessibility and design. Eligibility workflows were enhanced with validation improvements, address pre-fill optimizations, and analytics tracking to measure user interactions. Numerous bug fixes and reliability improvements (build stability, merge conflict resolution, and minor HTML/typo fixes) contributed to a smoother user experience and faster delivery cycles. The month demonstrates strong frontend craftsmanship, robust integration work, and improved measurement of user interactions for data-driven decisions.
June 2025 – betagouv/reno: Key features delivered: - Question sur les travaux envisagés: ajout d'une question pour clarifier les travaux envisagés (commit 073c11b700c114e597ad8ff21abfd61583d6dc57). - Choix des travaux et préselection des catégories: amélioration du flux de sélection des travaux et préselection basée sur les travaux envisagés (commits 302acb55a07ad31b0ccbf068ef65b315766d7cf7; b76c77291967fb2cac2f6bab320cfdf940d972be). - Redesign de la page d elegibilité pour les aides par gestes: refonte pour intégrer les aides par gestes (fec0899619a41a8f0f01ab140d36fe8d0fa55634). - Frise en fin de parcours: implémentation de la frise en fin de parcours et navigation associée (af66a4ca591e68e222090594ced8b8ffeae2a572). - Gestion des travaux d isolation et des aides: prise en charge des travaux d isolation des murs (a612c8502b9ba2a1efe110ad8143d1d5b6dabd8d); affichage amélioré des aides et des gestes (6564ab247abd146a9713211e2c58585723d597b9). - Export et refactorisation UI et mappings: export/reutilisation des mappings UI et éléments UI pour réutilisation (44a8c3193ea8e646b82f94ab12c758895d7485af; 1420b18eef388f57f709afc33a1fd0a5cf181db9; 6a7d3d2dec8d5c6e429b3753907bc01bc018182c; d1878d68a341d523df41f4220d0d9c3aa972d57c). - VMC double flux et chauffage: gestion du système VMC double flux et question sur le chauffage (a48d1167062cbb782e633340bb7a8fbe9e0eca28; c2a238e01724174e49ab29817d47ce675779d0ff). Major bugs fixed: - Corrections de syntaxe et typos multiples et corrections associées (6f7d3b6590c8825e69d99a580992a3c5ca6ba481; 4b759baac733d68522777f521aaa71ee891d3c87; b18f89c1f638244beb05d9845d979e37723b0227; 61230b95de34796242fe7a918df1f58d036ea0b0). - Amélioration de la navigation et des flux: correction bouton retour sur la frise, correction du fil d Ariane sur les pages de détails des aides, et le suivi de l’URL lors du basculement des travaux (f713b05d6b02adbe1f0913c6a39030f6c5741f29; 072dc9ef65270226443136974065525eb7798e79; 6d1281b02b6b60322495335d54f838e8b51e4ec6). - Problèmes DPE et adresse: affichage DPE autour de l’adresse sélectionnée et reconnaissance des codes INSEE PARIS (88476118b7c3e37188ba6c8c083889b0c220133f; 7416c2bd95da2ab40119bcc1f39198c13f9dfc03). - Tests et robustesse: ajout de tests pour éviter JSON.parse sur null; corrections d’API et d’entrées communes non renseignées (5381a32afdd39c90958d49bccebc205aa96fc651; 7e91464f9335bb648582479a9679c4bb543ee4a3). - Maintenance et nettoyage: suppression de code inutile et import non utilisé; corrections de merge (8d6855c5efe33973f7db0a913d6e377c4f4c55a7; 896be1ff2d2dda84fd18c0f2e2ce5d4301a0b041). Overall impact and accomplishments: - Amélioration significative de l’expérience utilisateur et du parcours éligibilité, réduction de frictions et meilleure cohérence des données (chauffage, réseau de chaleur, solaire). Les améliorations de UI/UX et l’accessibilité augmentent l’adoption et la confiance des utilisateurs, tout en préparant le terrain pour les évolutions futures. - Renforcement de la maintenabilité et de la qualité du code via des refactorings ciblés, des exports de mappings UI réutilisables et des tests additionnels qui protègent contre des régressions liées à JSON et API. Technologies/skills demonstrated: - Frontend architecture et refactorings React/JS; UI/UX, accessibilité et internationalisation mineure. - Gestion des API (DPE, INSEE, geo) et modélisation des données liées au chauffage et aux aides. - Assurance qualité: tests anti-null JSON, cleanup, merge fixes, et maintenance proactive.
June 2025 – betagouv/reno: Key features delivered: - Question sur les travaux envisagés: ajout d'une question pour clarifier les travaux envisagés (commit 073c11b700c114e597ad8ff21abfd61583d6dc57). - Choix des travaux et préselection des catégories: amélioration du flux de sélection des travaux et préselection basée sur les travaux envisagés (commits 302acb55a07ad31b0ccbf068ef65b315766d7cf7; b76c77291967fb2cac2f6bab320cfdf940d972be). - Redesign de la page d elegibilité pour les aides par gestes: refonte pour intégrer les aides par gestes (fec0899619a41a8f0f01ab140d36fe8d0fa55634). - Frise en fin de parcours: implémentation de la frise en fin de parcours et navigation associée (af66a4ca591e68e222090594ced8b8ffeae2a572). - Gestion des travaux d isolation et des aides: prise en charge des travaux d isolation des murs (a612c8502b9ba2a1efe110ad8143d1d5b6dabd8d); affichage amélioré des aides et des gestes (6564ab247abd146a9713211e2c58585723d597b9). - Export et refactorisation UI et mappings: export/reutilisation des mappings UI et éléments UI pour réutilisation (44a8c3193ea8e646b82f94ab12c758895d7485af; 1420b18eef388f57f709afc33a1fd0a5cf181db9; 6a7d3d2dec8d5c6e429b3753907bc01bc018182c; d1878d68a341d523df41f4220d0d9c3aa972d57c). - VMC double flux et chauffage: gestion du système VMC double flux et question sur le chauffage (a48d1167062cbb782e633340bb7a8fbe9e0eca28; c2a238e01724174e49ab29817d47ce675779d0ff). Major bugs fixed: - Corrections de syntaxe et typos multiples et corrections associées (6f7d3b6590c8825e69d99a580992a3c5ca6ba481; 4b759baac733d68522777f521aaa71ee891d3c87; b18f89c1f638244beb05d9845d979e37723b0227; 61230b95de34796242fe7a918df1f58d036ea0b0). - Amélioration de la navigation et des flux: correction bouton retour sur la frise, correction du fil d Ariane sur les pages de détails des aides, et le suivi de l’URL lors du basculement des travaux (f713b05d6b02adbe1f0913c6a39030f6c5741f29; 072dc9ef65270226443136974065525eb7798e79; 6d1281b02b6b60322495335d54f838e8b51e4ec6). - Problèmes DPE et adresse: affichage DPE autour de l’adresse sélectionnée et reconnaissance des codes INSEE PARIS (88476118b7c3e37188ba6c8c083889b0c220133f; 7416c2bd95da2ab40119bcc1f39198c13f9dfc03). - Tests et robustesse: ajout de tests pour éviter JSON.parse sur null; corrections d’API et d’entrées communes non renseignées (5381a32afdd39c90958d49bccebc205aa96fc651; 7e91464f9335bb648582479a9679c4bb543ee4a3). - Maintenance et nettoyage: suppression de code inutile et import non utilisé; corrections de merge (8d6855c5efe33973f7db0a913d6e377c4f4c55a7; 896be1ff2d2dda84fd18c0f2e2ce5d4301a0b041). Overall impact and accomplishments: - Amélioration significative de l’expérience utilisateur et du parcours éligibilité, réduction de frictions et meilleure cohérence des données (chauffage, réseau de chaleur, solaire). Les améliorations de UI/UX et l’accessibilité augmentent l’adoption et la confiance des utilisateurs, tout en préparant le terrain pour les évolutions futures. - Renforcement de la maintenabilité et de la qualité du code via des refactorings ciblés, des exports de mappings UI réutilisables et des tests additionnels qui protègent contre des régressions liées à JSON et API. Technologies/skills demonstrated: - Frontend architecture et refactorings React/JS; UI/UX, accessibilité et internationalisation mineure. - Gestion des API (DPE, INSEE, geo) et modélisation des données liées au chauffage et aux aides. - Assurance qualité: tests anti-null JSON, cleanup, merge fixes, et maintenance proactive.
May 2025 monthly summary for betagouv/reno: Key features delivered, major bugs fixed, impact, and technologies demonstrated. Focused on delivering user-value improvements in DPE, travaux, data quality, and analytics while stabilizing the UI and performance.
May 2025 monthly summary for betagouv/reno: Key features delivered, major bugs fixed, impact, and technologies demonstrated. Focused on delivering user-value improvements in DPE, travaux, data quality, and analytics while stabilizing the UI and performance.
April 2025 for betagouv/reno: Delivered substantial frontend refactors, data-model refinements, and API enrichments that improve data accuracy, user experience, and release stability. Work spanned an Invoice module UI overhaul, climate zone enrichment based on housing addresses, MPR model updates with new commune dependencies, and reliability improvements in address/commune flows. These efforts reduce manual errors, shorten decision times, and strengthen compliance with energy data handling. Highlights include improved energy bill calculations, address-driven climate zone logic, and a consolidated UI flow for commune questions. Release management progressed with version bumps and maintenance tasks to prepare for post-2.x releases.
April 2025 for betagouv/reno: Delivered substantial frontend refactors, data-model refinements, and API enrichments that improve data accuracy, user experience, and release stability. Work spanned an Invoice module UI overhaul, climate zone enrichment based on housing addresses, MPR model updates with new commune dependencies, and reliability improvements in address/commune flows. These efforts reduce manual errors, shorten decision times, and strengthen compliance with energy data handling. Highlights include improved energy bill calculations, address-driven climate zone logic, and a consolidated UI flow for commune questions. Release management progressed with version bumps and maintenance tasks to prepare for post-2.x releases.
Concise monthly summary for betagouv/reno (March 2025). Focused on delivering high-impact features, stabilizing the platform, and enabling future scalability through component standardization and infrastructure improvements. Delivered mobile/UI enhancements, stabilized user flows, integrated ValeurVerte, and extended DPE capabilities with a maintainable widget/page architecture. Demonstrated strong frontend engineering, data integration, and publicodes-based decision logic.
Concise monthly summary for betagouv/reno (March 2025). Focused on delivering high-impact features, stabilizing the platform, and enabling future scalability through component standardization and infrastructure improvements. Delivered mobile/UI enhancements, stabilized user flows, integrated ValeurVerte, and extended DPE capabilities with a maintainable widget/page architecture. Demonstrated strong frontend engineering, data integration, and publicodes-based decision logic.
February 2025 — betagouv/reno monthly update focusing on delivering robust front-end features, accessibility improvements, and reliable calculation modules while reducing technical debt. Highlights span UI/UX refinements, mobile sharing, and improved risk-free defaults, all aimed at boosting user adoption, decision speed, and accuracy of calculations across modules.
February 2025 — betagouv/reno monthly update focusing on delivering robust front-end features, accessibility improvements, and reliable calculation modules while reducing technical debt. Highlights span UI/UX refinements, mobile sharing, and improved risk-free defaults, all aimed at boosting user adoption, decision speed, and accuracy of calculations across modules.
January 2025 summary for betagouv/reno focused on delivering core eligibility improvements, policy coverage expansions, UX stabilizations, and SEO enhancements. The work emphasizes business value through clearer decision flows, maintainable UI components, and better integration with policy engines and iframe modules, while stabilizing the user experience with targeted bug fixes.
January 2025 summary for betagouv/reno focused on delivering core eligibility improvements, policy coverage expansions, UX stabilizations, and SEO enhancements. The work emphasizes business value through clearer decision flows, maintainable UI components, and better integration with policy engines and iframe modules, while stabilizing the user experience with targeted bug fixes.
December 2024 — betagouv/reno delivered high-value features and reliability improvements spanning user guidance, financial simulations, API observability, and UI/UX upgrades. Highlights include a gesture-based Help System, a new taxe foncière API endpoint, PTZ calculation enhancements with parity across PTZ and PAR, a comprehensive documentation/UI refactor, API statistics and data enrichment capabilities, and performance-oriented UI updates (API results loader and line-chart-based internal stats visuals). In parallel, targeted bug fixes improved stability, error handling, and build reliability. These deliverables increase business value by reducing support load, accelerating decision-making for users and partners, and enabling more accurate financial simulations.
December 2024 — betagouv/reno delivered high-value features and reliability improvements spanning user guidance, financial simulations, API observability, and UI/UX upgrades. Highlights include a gesture-based Help System, a new taxe foncière API endpoint, PTZ calculation enhancements with parity across PTZ and PAR, a comprehensive documentation/UI refactor, API statistics and data enrichment capabilities, and performance-oriented UI updates (API results loader and line-chart-based internal stats visuals). In parallel, targeted bug fixes improved stability, error handling, and build reliability. These deliverables increase business value by reducing support load, accelerating decision-making for users and partners, and enabling more accurate financial simulations.
November 2024 monthly summary for betagouv/reno: Delivered a set of user-facing improvements, analytics integration, and API enhancements that boost UX, data-driven decision-making, and external integrations. The team unified navigation with a globally applied compact header, enriched user feedback with simulation URL and GitHub tag, and expanded analytics coverage across modules and the home page. Accessibility was improved by adding alt text to images, while the UI gained a more informative stats page. API surface was expanded (PTZ/PAR/Denormandie) and versioning introduced, with routing refinements including endpoint renames for dashboard tooling. Several stability and quality fixes were completed to reinforce UX and reliability.
November 2024 monthly summary for betagouv/reno: Delivered a set of user-facing improvements, analytics integration, and API enhancements that boost UX, data-driven decision-making, and external integrations. The team unified navigation with a globally applied compact header, enriched user feedback with simulation URL and GitHub tag, and expanded analytics coverage across modules and the home page. Accessibility was improved by adding alt text to images, while the UI gained a more informative stats page. API surface was expanded (PTZ/PAR/Denormandie) and versioning introduced, with routing refinements including endpoint renames for dashboard tooling. Several stability and quality fixes were completed to reinforce UX and reliability.
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