betagouv/france-chaleur-urbaine
Nov 2024 – Oct 2025
11 Months active
Languages Used
CSSHTMLJavaScriptMarkdownReactSQLTypeScriptYAML
Technical Skills
API DevelopmentAPI IntegrationAsynchronous ProgrammingBackend DevelopmentCI/CDCSS
Martin Ratinaud
PROFILE
Martin Ratinaud
Martin Ratinaud developed and maintained the betagouv/france-chaleur-urbaine repository, delivering robust features for municipal energy planning and analytics. He architected a modular, type-safe codebase using TypeScript and React, modernizing the data layer with Kysely and optimizing UI/UX with Tailwind CSS. His work included implementing scalable map visualizations, advanced filtering, and bulk address testing, while integrating TRPC and Zod for secure, validated APIs. Martin refactored legacy systems, improved accessibility, and automated data pipelines, resulting in faster feature delivery and improved reliability. His engineering approach emphasized maintainability, performance, and business value, supporting both end-user needs and developer productivity.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
1,131Total
Bugs
247
Commits
1,131
Features
512
Lines of code
123,561
Activity Months11
Your Network
4 peopleShared Repositories
4
Work History
October 2025
92 Commits • 53 Features
Oct 1, 2025October 2025 monthly summary for betagouv/france-chaleur-urbaine focused on delivering measurable business value, stabilizing the release, and enabling faster future iterations. The month combined user-facing enhancements with developer-centric refactors to improve performance, security, and maintainability.
92 Commits • 53 Features
Oct 1, 2025October 2025 monthly summary for betagouv/france-chaleur-urbaine focused on delivering measurable business value, stabilizing the release, and enabling faster future iterations. The month combined user-facing enhancements with developer-centric refactors to improve performance, security, and maintainability.
October 2025
September 2025
98 Commits • 45 Features
Sep 1, 2025September 2025 – France Chaleur Urbaine: Delivered high-value features, resolved reliability issues, and strengthened architecture to support scalable growth. Highlights include geolocation support for bulk address testing, Claude integration for claude code, and tRPC/module-based architecture enabling streamlined admin eligibility testing and testing routes. Network management features were expanded with creation and safeguards against oversized geometries, complemented by UI/UX and data workflow improvements. Numerous refactors and type-safety enhancements improved maintainability and developer velocity. Bug fixes across promises, test deletion, selection controls, and data persistence improved reliability. Performance optimizations such as avoiding service re-instantiation and preconnect hints contributed to faster page loads and better user experience. Technologies demonstrated: TypeScript, TRPC, zod-geojson validation, module-based architecture, and robust context/logging improvements. Business value: faster, safer bulk tests; safer network operations; improved data integrity; and stronger DX.
September 2025
98 Commits • 45 Features
Sep 1, 2025September 2025 – France Chaleur Urbaine: Delivered high-value features, resolved reliability issues, and strengthened architecture to support scalable growth. Highlights include geolocation support for bulk address testing, Claude integration for claude code, and tRPC/module-based architecture enabling streamlined admin eligibility testing and testing routes. Network management features were expanded with creation and safeguards against oversized geometries, complemented by UI/UX and data workflow improvements. Numerous refactors and type-safety enhancements improved maintainability and developer velocity. Bug fixes across promises, test deletion, selection controls, and data persistence improved reliability. Performance optimizations such as avoiding service re-instantiation and preconnect hints contributed to faster page loads and better user experience. Technologies demonstrated: TypeScript, TRPC, zod-geojson validation, module-based architecture, and robust context/logging improvements. Business value: faster, safer bulk tests; safer network operations; improved data integrity; and stronger DX.
August 2025
7 Commits • 2 Features
Aug 1, 2025August 2025 monthly summary for betagouv/france-chaleur-urbaine focused on delivering user experience improvements, stability fixes, and developer tooling upgrades that collectively increase product reliability and developer productivity. The work prioritized customer-visible UX polish, robust navigation, improved build/dev tooling, and stronger data validation.
7 Commits • 2 Features
Aug 1, 2025August 2025 monthly summary for betagouv/france-chaleur-urbaine focused on delivering user experience improvements, stability fixes, and developer tooling upgrades that collectively increase product reliability and developer productivity. The work prioritized customer-visible UX polish, robust navigation, improved build/dev tooling, and stronger data validation.
August 2025
July 2025
106 Commits • 53 Features
Jul 1, 2025For July 2025, the France-Chaleur-urbaine project delivered targeted feature work, stability improvements, and deployment tooling enhancements focused on the map UI, tile generation, and data pipelines. Key outcomes include an address testing layer with color-differentiated visuals, a new tiles schema with migrations to support tile generation, and tile rendering optimizations that reduce data footprint while enabling zoom-aware rendering and configurable Tippicanoe arguments. Additional progress includes a server scan mode to observe rerenders and a session-retrieval fix on the server side, complemented by UI/UX accessibility refinements and robust maintenance work. These results reduce operational risk, accelerate feature delivery, and improve map reliability for end users.
July 2025
106 Commits • 53 Features
Jul 1, 2025For July 2025, the France-Chaleur-urbaine project delivered targeted feature work, stability improvements, and deployment tooling enhancements focused on the map UI, tile generation, and data pipelines. Key outcomes include an address testing layer with color-differentiated visuals, a new tiles schema with migrations to support tile generation, and tile rendering optimizations that reduce data footprint while enabling zoom-aware rendering and configurable Tippicanoe arguments. Additional progress includes a server scan mode to observe rerenders and a session-retrieval fix on the server side, complemented by UI/UX accessibility refinements and robust maintenance work. These results reduce operational risk, accelerate feature delivery, and improve map reliability for end users.
June 2025
55 Commits • 20 Features
Jun 1, 2025June 2025 (2025-06) monthly summary for betagouv/france-chaleur-urbaine: Focused on improving user experience, code maintainability, and core tooling to accelerate safe delivery and business impact. Key UX refinements were implemented across the UI, navigation, and hero sections; foundational improvements were made through technical constraints, refactors of eligibility/contact forms, and a modernized email rendering stack. Upstream dependencies were updated to current versions, enhancing stability and developer productivity. Additionally, data visualization and labeling were clarified to improve decision-making and user confidence. These efforts deliver tangible business value through a more reliable product, faster iterations, and clearer information presentation.
55 Commits • 20 Features
Jun 1, 2025June 2025 (2025-06) monthly summary for betagouv/france-chaleur-urbaine: Focused on improving user experience, code maintainability, and core tooling to accelerate safe delivery and business impact. Key UX refinements were implemented across the UI, navigation, and hero sections; foundational improvements were made through technical constraints, refactors of eligibility/contact forms, and a modernized email rendering stack. Upstream dependencies were updated to current versions, enhancing stability and developer productivity. Additionally, data visualization and labeling were clarified to improve decision-making and user confidence. These efforts deliver tangible business value through a more reliable product, faster iterations, and clearer information presentation.
June 2025
May 2025
108 Commits • 50 Features
May 1, 2025May 2025 monthly summary for betagouv/france-chaleur-urbaine: Delivered a mix of business-critical data integrity improvements, UI/UX enhancements, and tooling upgrades that collectively increased reliability, developer productivity, and product value for end users. Key work spanned API reliability, data handling, UI components, and build/CI modernization. Key achievements (top 5): - Raw SQL query support added in Kysely filters (commit fc5c56e20dc79e7bafee4cad53903e6466de5a46) which enables more flexible and performant advanced filtering for analytics and reporting. - CrudDropdown component introduced and adopted for comparator configurations, improving consistency and configurability across the UI (commit d2b922380be6ca47dcd37aa9376903fc652e99e7). - Email management enhancements: refactored the email sending modal, added email templates with placeholders, and introduced preview/history viewing tools to reduce support cycles and improve customer communications (commits dfb3dd011f0d1c67f269a354be5e3a5e729ad431, 17a76c001e1ec6cdcc00c29a732b43026d983731, 8baf5fb1b483fdf1d3ef8e303e579e1ab20daff8, dbb77b4d02c9e3f74bb4166e72cdac0dfbd8e06e, e35d1ecef6438ddba4225949252217af9eb7836d). - Build, package management, and UI modernization: upgraded Next.js to 15.3 and adopted Turbo build; migrated from Yarn to PNPM; removed MUI in favor of Tailwind-based UI; CI updates to align with the new toolchain (commits b6ec577a6de2f958d6f464ec7aefe4b2afe839bd, d12f915cccd3e8160857b18bb82e55f90908aada, a442a26d8eb0c016c1afca0450981e0dfa10d79f, a207f6bff6188321a080c19b3fcada19436054f8, 0df6f0c773f1df71f8680da24661bc2189576282, 75bcc170bb2c8e288347a5dd832f1da215b4cc85). - Data quality and reliability improvements: TypeScript and ESLint fixes, table component enhancements, and migration/script improvements to reduce technical debt (commits 53f371e8424de45af925e14db06b0418835fa256, 00c01a26b8f98be554733ee366a067c48ceccc58, 4d616fba41a28a12730812fbd1dd66cfec536594, 0e87b1bbc85dfcecfc1d7853a13411370dd25ddf, ce658e770d2bf397aeae5d9fd3897a1d09d3d579). - Operational improvements: added CLI for reconciling Airtable vs Postgres, GeoJSON tracing, and governance/documentation updates to support scalable deployment and data reliability (commits 15b10404297668230645bffa0690e66de0cee2b0, bb6d95ff1ff618c20f16267dced35dad12fa04a6, ca3e02517ac34ef4742df2afff215bc932b3b221). Overall impact and business value: The month yielded tangible improvements in data integrity, user-facing email workflows, and UI consistency, while modernizing the tech stack to accelerate delivery and reduce maintenance costs. These changes enhance trust with customers, shorten time-to-value for new features, and position the product for scalable growth. Technologies/skills demonstrated: React/TypeScript, Kysely, Next.js, Turbo, PNPM, Tailwind CSS, UI/UX design, CLI tooling, GitBook data handling, GeoJSON, and robust CI/CD practices.
May 2025
108 Commits • 50 Features
May 1, 2025May 2025 monthly summary for betagouv/france-chaleur-urbaine: Delivered a mix of business-critical data integrity improvements, UI/UX enhancements, and tooling upgrades that collectively increased reliability, developer productivity, and product value for end users. Key work spanned API reliability, data handling, UI components, and build/CI modernization. Key achievements (top 5): - Raw SQL query support added in Kysely filters (commit fc5c56e20dc79e7bafee4cad53903e6466de5a46) which enables more flexible and performant advanced filtering for analytics and reporting. - CrudDropdown component introduced and adopted for comparator configurations, improving consistency and configurability across the UI (commit d2b922380be6ca47dcd37aa9376903fc652e99e7). - Email management enhancements: refactored the email sending modal, added email templates with placeholders, and introduced preview/history viewing tools to reduce support cycles and improve customer communications (commits dfb3dd011f0d1c67f269a354be5e3a5e729ad431, 17a76c001e1ec6cdcc00c29a732b43026d983731, 8baf5fb1b483fdf1d3ef8e303e579e1ab20daff8, dbb77b4d02c9e3f74bb4166e72cdac0dfbd8e06e, e35d1ecef6438ddba4225949252217af9eb7836d). - Build, package management, and UI modernization: upgraded Next.js to 15.3 and adopted Turbo build; migrated from Yarn to PNPM; removed MUI in favor of Tailwind-based UI; CI updates to align with the new toolchain (commits b6ec577a6de2f958d6f464ec7aefe4b2afe839bd, d12f915cccd3e8160857b18bb82e55f90908aada, a442a26d8eb0c016c1afca0450981e0dfa10d79f, a207f6bff6188321a080c19b3fcada19436054f8, 0df6f0c773f1df71f8680da24661bc2189576282, 75bcc170bb2c8e288347a5dd832f1da215b4cc85). - Data quality and reliability improvements: TypeScript and ESLint fixes, table component enhancements, and migration/script improvements to reduce technical debt (commits 53f371e8424de45af925e14db06b0418835fa256, 00c01a26b8f98be554733ee366a067c48ceccc58, 4d616fba41a28a12730812fbd1dd66cfec536594, 0e87b1bbc85dfcecfc1d7853a13411370dd25ddf, ce658e770d2bf397aeae5d9fd3897a1d09d3d579). - Operational improvements: added CLI for reconciling Airtable vs Postgres, GeoJSON tracing, and governance/documentation updates to support scalable deployment and data reliability (commits 15b10404297668230645bffa0690e66de0cee2b0, bb6d95ff1ff618c20f16267dced35dad12fa04a6, ca3e02517ac34ef4742df2afff215bc932b3b221). Overall impact and business value: The month yielded tangible improvements in data integrity, user-facing email workflows, and UI consistency, while modernizing the tech stack to accelerate delivery and reduce maintenance costs. These changes enhance trust with customers, shorten time-to-value for new features, and position the product for scalable growth. Technologies/skills demonstrated: React/TypeScript, Kysely, Next.js, Turbo, PNPM, Tailwind CSS, UI/UX design, CLI tooling, GitBook data handling, GeoJSON, and robust CI/CD practices.
April 2025
124 Commits • 52 Features
Apr 1, 2025April 2025 monthly summary for betagouv/france-chaleur-urbaine: Highlights include Admin Dashboard and DSFR-aligned UI header upgrades; Airtable sync and API reliability fixes; advanced table filtering UX; server-side network state computation; and code quality improvements enabling safer, scalable development. These changes deliver stronger admin governance, more reliable data imports, faster UI interactions, and a foundation for future analytics features.
124 Commits • 52 Features
Apr 1, 2025April 2025 monthly summary for betagouv/france-chaleur-urbaine: Highlights include Admin Dashboard and DSFR-aligned UI header upgrades; Airtable sync and API reliability fixes; advanced table filtering UX; server-side network state computation; and code quality improvements enabling safer, scalable development. These changes deliver stronger admin governance, more reliable data imports, faster UI interactions, and a foundation for future analytics features.
April 2025
March 2025
150 Commits • 75 Features
Mar 1, 2025March 2025 (2025-03) — Delivered a broad set of front-end enhancements, stability fixes, and infrastructure work for betagouv/france-chaleur-urbaine, with a focus on business value, accessibility, and maintainability. Key improvements span performance routing, public/pro-mode UX, UI polish, and robust feature-flag/auth flows that reduce friction for users and enable safer rollout of capabilities.
March 2025
150 Commits • 75 Features
Mar 1, 2025March 2025 (2025-03) — Delivered a broad set of front-end enhancements, stability fixes, and infrastructure work for betagouv/france-chaleur-urbaine, with a focus on business value, accessibility, and maintainability. Key improvements span performance routing, public/pro-mode UX, UI polish, and robust feature-flag/auth flows that reduce friction for users and enable safer rollout of capabilities.
February 2025
124 Commits • 49 Features
Feb 1, 2025February 2025 — Delivered core map features and stability improvements to accelerate urban-heating analysis workflows and decision support. Key features delivered include a CLI to add a map layer, refined Kysely typings, and live display of ongoing studies with descriptive context. Filtering improvements now show networks with values only, and UI polish was applied to ongoing studies popups and tooltips. Major reliability and quality work fixed documentation commands, import/file handling edge cases, and PR validation scaffolding. Technologies demonstrated include TypeScript typings (Kysely/TS), Next.js MDX, Tailwind/Radix tooltips, and server-side session enhancements for financing graphs, underscoring strong frontend/backend collaboration and improved performance.
124 Commits • 49 Features
Feb 1, 2025February 2025 — Delivered core map features and stability improvements to accelerate urban-heating analysis workflows and decision support. Key features delivered include a CLI to add a map layer, refined Kysely typings, and live display of ongoing studies with descriptive context. Filtering improvements now show networks with values only, and UI polish was applied to ongoing studies popups and tooltips. Major reliability and quality work fixed documentation commands, import/file handling edge cases, and PR validation scaffolding. Technologies demonstrated include TypeScript typings (Kysely/TS), Next.js MDX, Tailwind/Radix tooltips, and server-side session enhancements for financing graphs, underscoring strong frontend/backend collaboration and improved performance.
February 2025
January 2025
111 Commits • 38 Features
Jan 1, 2025January 2025 monthly summary for betagouv/france-chaleur-urbaine: Strengthened codebase architecture, modernized data layer, and enriched analytics with a focus on reliability and business value. Key features and improvements were delivered across server-side refactoring, UI stability, data access, and data visualization, enabling faster iterations and more reliable decision support.
January 2025
111 Commits • 38 Features
Jan 1, 2025January 2025 monthly summary for betagouv/france-chaleur-urbaine: Strengthened codebase architecture, modernized data layer, and enriched analytics with a focus on reliability and business value. Key features and improvements were delivered across server-side refactoring, UI stability, data access, and data visualization, enabling faster iterations and more reliable decision support.
November 2024
156 Commits • 75 Features
Nov 1, 2024November 2024 — Open-source repo betagouv/france-chaleur-urbaine. This month focused on data quality, UI polish, modular architecture, and stability, delivering business value through safer data access, richer commune data, and improved user experience. Key outcomes include a switch from Knex to Kysely for safer data access, enriched commune potentiel information, branding/UI polish, feature flags for safer rollout, and extensive stability/SEO improvements. Impact: more reliable municipal planning data, faster feature delivery, and a cleaner, scalable codebase.
156 Commits • 75 Features
Nov 1, 2024November 2024 — Open-source repo betagouv/france-chaleur-urbaine. This month focused on data quality, UI polish, modular architecture, and stability, delivering business value through safer data access, richer commune data, and improved user experience. Key outcomes include a switch from Knex to Kysely for safer data access, enriched commune potentiel information, branding/UI polish, feature flags for safer rollout, and extensive stability/SEO improvements. Impact: more reliable municipal planning data, faster feature delivery, and a cleaner, scalable codebase.
November 2024
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Quality Metrics
Correctness89.2%
Maintainability90.0%
Architecture85.6%
Performance85.6%
AI Usage21.2%
Skills & Technologies
Programming Languages
BashCSSDockerfileHTMLJSONJSXJavaScriptMDXMarkdownN/A
Technical Skills
AI Agent ConfigurationAI Agent DevelopmentAI ConfigurationAI IntegrationAPI DesignAPI DevelopmentAPI IntegrationAPI RefactoringAPI SecurityAPI developmentAPI integrationAccess ControlAccessibilityAdmin Panel DevelopmentAirtable
Repositories Contributed To
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