wtg/shubble
Apr 2025 – Oct 2025
7 Months active
Languages Used
BashCSSDockerfileEnvironment VariablesGitHTMLJavaScriptPython
Technical Skills
API DevelopmentBackend DeploymentBackend DevelopmentBuild AutomationBuild SystemsCI/CD
Joel McCandless
PROFILE
Joel Mccandless
Joel McCandless developed and maintained the wtg/shubble repository, delivering a robust full-stack platform for real-time shuttle tracking and scheduling. He architected a Flask backend with a React frontend, integrating PostgreSQL for scalable data management and MapKit for dynamic map visualization. Joel implemented CI/CD pipelines, Dockerized deployments, and automated build processes to ensure reliable releases. He enhanced routing precision, schedule aggregation, and geospatial data handling using Python and JavaScript, while improving UI responsiveness and observability. His work emphasized maintainability through code cleanup, documentation, and test coverage, resulting in a stable, extensible system that streamlined onboarding and supported rapid feature delivery.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
424Total
Bugs
59
Commits
424
Features
145
Lines of code
441,497
Activity Months7
Your Network
8 people
Work History
October 2025
25 Commits • 8 Features
Oct 1, 2025October 2025 delivered notable business-value features and reliability improvements across wtg/shubble. Key outcomes include enhanced map overlays and API data for routing precision, robust aggregated schedule generation and serving, and time-zone correct scheduling exports. New routes and updated route data expand coverage; critical stop placement fixes improve reliability. Privacy policy page added to support compliance. Development tooling improvements and code cleanup enhanced developer experience and maintainability.
25 Commits • 8 Features
Oct 1, 2025October 2025 delivered notable business-value features and reliability improvements across wtg/shubble. Key outcomes include enhanced map overlays and API data for routing precision, robust aggregated schedule generation and serving, and time-zone correct scheduling exports. New routes and updated route data expand coverage; critical stop placement fixes improve reliability. Privacy policy page added to support compliance. Development tooling improvements and code cleanup enhanced developer experience and maintainability.
October 2025
September 2025
24 Commits • 12 Features
Sep 1, 2025September 2025 (wtg/shubble) delivered a strong blend of governance, reliability, and developer experience improvements. Key features and updates enhanced community compliance, navigation, scheduling accuracy, and observability, while maintenance and automation efforts reduced toil and improved release quality. Major fixes stabilized UI, data, and deployment workflows, driving faster, more reliable product iterations.
September 2025
24 Commits • 12 Features
Sep 1, 2025September 2025 (wtg/shubble) delivered a strong blend of governance, reliability, and developer experience improvements. Key features and updates enhanced community compliance, navigation, scheduling accuracy, and observability, while maintenance and automation efforts reduced toil and improved release quality. Major fixes stabilized UI, data, and deployment workflows, driving faster, more reliable product iterations.
August 2025
89 Commits • 30 Features
Aug 1, 2025Month: 2025-08 | Repository: wtg/shubble Key features delivered: - Scheduling Data Integration: adds a schedule resource, uses schedule.json for the schedule, and introduces time offsets for stops. Commits: cc00a5eed31849474614aa3382d60d1369652d96; ad586261fbcba49e854fbb4686a5dd852a897124; 5eb412689ef5239d6bd900a7af1708538b488240. - Route Data Consolidation and Aggregation: consolidates route data and introduces an aggregated route data model, including consolidation of route offset, name, and coordinates. Commits: f1dd655271c1bd56007437f839882bb8c6b45649; ca32ec3ee7f21c2f3a427d525d5c070b7741496f; 3a575afced97361373e7dec15480fef4b72b60fe. - Webhook-driven State Changes and Shuttle Data Endpoints: adds webhook handling for state changes, endpoints interfacing with shuttle.py to fetch data, and shifts to test server endpoints for testing. Commits: b9b7cb9dc74f1a011cfa586712beef9d4c34b904; d8d456c9d2527d8a73249e625730df0256c79601; bcb17521559dae039f2c67c84bfa78ea27d6b590. - Static Route Generation Pipeline and Map Overlays: implements static route generation flow, including static-routes endpoint, route list integration, data duplication for static route generation, ghost-stop handling, and overlays rendering after calculation. Commits: 05981c938d40f73fdcb6838cc3fe980763183c0d; 5d995f392165198284770bd8103578ad6dff11fd; 712c3c992fc724d946cd3544c63ab018f85eebf6; 9fd03e4fb8f63a87f9749586ec970ab66e2a79d8; cbc4b51c041d3c7fc1a7a551a62945c60c4e3bcd; b3d85399d3907660ec1e8e4fccc3473b2432d96c; e2fd6a5ab549dcd1b05df771560b66679789f71f; 811f4295c0e12ed505a1a67e49b29a414fc87d0f; 9ce7be73f825321a803706f7ba733463e273db9f. - Weekend scheduling and Schedule labeling enhancements: adds weekend schedule and estimated label to schedule. Commits: 5b080b6e43cbae3d578307ec72c5cd77e38caa23; 39f18aa0017d7e1955ec0691e3cef14f777e8ed5; 600bfd68d553708faa12fd5624faea654f727814. Major bugs fixed: - Geofence exit handling and tests: fixes for vehicles that exit geofence and corresponding tests. Commits: 87921e3590025a834f13ffecdc74aac628e72242; 9551f09f683b25a5251b17bccd0368b083c959df. - Remove duplicate points: removes duplicate route data points. Commits: ca0e2ad00b4ce0fa0b2611b498aa4ade8fe989ce; 38439c14983a8c8fc319b40c9345893b36f6d3a4. - Fix: Next State Logic to Enable Exit: resolves a bug in the state machine to allow exiting. Commit: 139142869d442b9476c23a4f3191635d26dd5fa6. - Robust Closest Point Calculation for Zero-Length Lines: handles zero-length lines to compute closest point reliably. Commit: ba8a86c708f1ac0677e81c54b3fa68db441c7a0a. - Stop data workflow: Remove faulty second entry loop to prevent erroneous processing. Commit: d5ccfebe9984cf3b03e87df44631cb145684ea81. Overall impact and accomplishments: - Accelerated data-to-UI workflows by enabling schedule-aware routing, consolidated route representations, and robust data pipelines for static route generation. Improved geofence reliability and route visualization through filtering, ghost-stop corrections, and active-route rendering. Strengthened testing, logging, and documentation to support maintainability and faster onboarding. Enhanced stability with server port fixes and routine cleanup. Technologies/skills demonstrated: - Python data utilities and geospatial math: get_closest_point, is_at_stop, haversine-based distance calculations, vectorized haversine, and robust data handling. - React/Map rendering and MapKit integration: lifecycle initialization, overlays, polylines, and dynamic route visualization. - Webhooks and API integration: webhook-driven state changes, shuttle data endpoints, and test-server workflows. - Data modeling and ETL: aggregated route data model, schedule aggregation, and static routes generation pipeline. - Testing, documentation, and versioning: updated tests for new webhook formats, instructional docs, Python/runtime updates, and code quality cleanups.
89 Commits • 30 Features
Aug 1, 2025Month: 2025-08 | Repository: wtg/shubble Key features delivered: - Scheduling Data Integration: adds a schedule resource, uses schedule.json for the schedule, and introduces time offsets for stops. Commits: cc00a5eed31849474614aa3382d60d1369652d96; ad586261fbcba49e854fbb4686a5dd852a897124; 5eb412689ef5239d6bd900a7af1708538b488240. - Route Data Consolidation and Aggregation: consolidates route data and introduces an aggregated route data model, including consolidation of route offset, name, and coordinates. Commits: f1dd655271c1bd56007437f839882bb8c6b45649; ca32ec3ee7f21c2f3a427d525d5c070b7741496f; 3a575afced97361373e7dec15480fef4b72b60fe. - Webhook-driven State Changes and Shuttle Data Endpoints: adds webhook handling for state changes, endpoints interfacing with shuttle.py to fetch data, and shifts to test server endpoints for testing. Commits: b9b7cb9dc74f1a011cfa586712beef9d4c34b904; d8d456c9d2527d8a73249e625730df0256c79601; bcb17521559dae039f2c67c84bfa78ea27d6b590. - Static Route Generation Pipeline and Map Overlays: implements static route generation flow, including static-routes endpoint, route list integration, data duplication for static route generation, ghost-stop handling, and overlays rendering after calculation. Commits: 05981c938d40f73fdcb6838cc3fe980763183c0d; 5d995f392165198284770bd8103578ad6dff11fd; 712c3c992fc724d946cd3544c63ab018f85eebf6; 9fd03e4fb8f63a87f9749586ec970ab66e2a79d8; cbc4b51c041d3c7fc1a7a551a62945c60c4e3bcd; b3d85399d3907660ec1e8e4fccc3473b2432d96c; e2fd6a5ab549dcd1b05df771560b66679789f71f; 811f4295c0e12ed505a1a67e49b29a414fc87d0f; 9ce7be73f825321a803706f7ba733463e273db9f. - Weekend scheduling and Schedule labeling enhancements: adds weekend schedule and estimated label to schedule. Commits: 5b080b6e43cbae3d578307ec72c5cd77e38caa23; 39f18aa0017d7e1955ec0691e3cef14f777e8ed5; 600bfd68d553708faa12fd5624faea654f727814. Major bugs fixed: - Geofence exit handling and tests: fixes for vehicles that exit geofence and corresponding tests. Commits: 87921e3590025a834f13ffecdc74aac628e72242; 9551f09f683b25a5251b17bccd0368b083c959df. - Remove duplicate points: removes duplicate route data points. Commits: ca0e2ad00b4ce0fa0b2611b498aa4ade8fe989ce; 38439c14983a8c8fc319b40c9345893b36f6d3a4. - Fix: Next State Logic to Enable Exit: resolves a bug in the state machine to allow exiting. Commit: 139142869d442b9476c23a4f3191635d26dd5fa6. - Robust Closest Point Calculation for Zero-Length Lines: handles zero-length lines to compute closest point reliably. Commit: ba8a86c708f1ac0677e81c54b3fa68db441c7a0a. - Stop data workflow: Remove faulty second entry loop to prevent erroneous processing. Commit: d5ccfebe9984cf3b03e87df44631cb145684ea81. Overall impact and accomplishments: - Accelerated data-to-UI workflows by enabling schedule-aware routing, consolidated route representations, and robust data pipelines for static route generation. Improved geofence reliability and route visualization through filtering, ghost-stop corrections, and active-route rendering. Strengthened testing, logging, and documentation to support maintainability and faster onboarding. Enhanced stability with server port fixes and routine cleanup. Technologies/skills demonstrated: - Python data utilities and geospatial math: get_closest_point, is_at_stop, haversine-based distance calculations, vectorized haversine, and robust data handling. - React/Map rendering and MapKit integration: lifecycle initialization, overlays, polylines, and dynamic route visualization. - Webhooks and API integration: webhook-driven state changes, shuttle data endpoints, and test-server workflows. - Data modeling and ETL: aggregated route data model, schedule aggregation, and static routes generation pipeline. - Testing, documentation, and versioning: updated tests for new webhook formats, instructional docs, Python/runtime updates, and code quality cleanups.
August 2025
July 2025
51 Commits • 18 Features
Jul 1, 2025Monthly summary for 2025-07 focusing on the wtg/shubble repository. This month delivered foundational deployment capabilities, restructured the repo for scalable development, advanced CI/CD workflows, and improved server-side operations, while hardening security and data handling. Key features delivered: - Deployment stack bootstrap: added Heroku build, Gunicorn, DB URL patch, and deployment script migrations. - Monorepo structure refactor and tooling modernization: root-level package management, dependency consolidation, cleanup, and removal of node_modules to streamline builds. - CI/CD workflow improvements and deployment tooling: updated workflows for private runner, Dokku deployment, and environment passing. Major bugs fixed: - Key storage security improvement: store key in a temporary location rather than .ssh. - Force JSON parsing: ensure payloads are parsed as JSON for robust data handling. - Vehicle data extraction fix. - Fix default port typing. - Remove debug logs and standardize logger statements. Overall impact and accomplishments: - Reduced deployment friction and improved reliability for production deployments. - Faster, cleaner builds with monorepo simplification and consistent tooling. - Improved security posture and data integrity with explicit JSON parsing and secure key handling. - Enhanced observability and maintainability via consolidated logging and structured workflows. Technologies/skills demonstrated: - Python/Flask backend with migrations, server bootstrapping, and app context handling. - Node.js monorepo tooling, Vite, and related build/config modernizations. - Frontend JSON data usage, MapKit key handling, and data provisioning with JSON sources. - Deployment tooling (Heroku, Gunicorn, Dokku) and CI/CD pipelines. - Logging strategies and error/traceability improvements.
July 2025
51 Commits • 18 Features
Jul 1, 2025Monthly summary for 2025-07 focusing on the wtg/shubble repository. This month delivered foundational deployment capabilities, restructured the repo for scalable development, advanced CI/CD workflows, and improved server-side operations, while hardening security and data handling. Key features delivered: - Deployment stack bootstrap: added Heroku build, Gunicorn, DB URL patch, and deployment script migrations. - Monorepo structure refactor and tooling modernization: root-level package management, dependency consolidation, cleanup, and removal of node_modules to streamline builds. - CI/CD workflow improvements and deployment tooling: updated workflows for private runner, Dokku deployment, and environment passing. Major bugs fixed: - Key storage security improvement: store key in a temporary location rather than .ssh. - Force JSON parsing: ensure payloads are parsed as JSON for robust data handling. - Vehicle data extraction fix. - Fix default port typing. - Remove debug logs and standardize logger statements. Overall impact and accomplishments: - Reduced deployment friction and improved reliability for production deployments. - Faster, cleaner builds with monorepo simplification and consistent tooling. - Improved security posture and data integrity with explicit JSON parsing and secure key handling. - Enhanced observability and maintainability via consolidated logging and structured workflows. Technologies/skills demonstrated: - Python/Flask backend with migrations, server bootstrapping, and app context handling. - Node.js monorepo tooling, Vite, and related build/config modernizations. - Frontend JSON data usage, MapKit key handling, and data provisioning with JSON sources. - Deployment tooling (Heroku, Gunicorn, Dokku) and CI/CD pipelines. - Logging strategies and error/traceability improvements.
June 2025
23 Commits • 17 Features
Jun 1, 2025June 2025: Stabilized the release pipeline and advanced backend readiness, delivering PostgreSQL migration, Gunicorn deployment support, and core data-model/UI improvements. Established test scaffolding and data, and implemented repository hygiene to streamline future work. This set the foundation for reliable releases, improved operability, and clearer UI for end users.
23 Commits • 17 Features
Jun 1, 2025June 2025: Stabilized the release pipeline and advanced backend readiness, delivering PostgreSQL migration, Gunicorn deployment support, and core data-model/UI improvements. Established test scaffolding and data, and implemented repository hygiene to streamline future work. This set the foundation for reliable releases, improved operability, and clearer UI for end users.
June 2025
May 2025
176 Commits • 48 Features
May 1, 2025May 2025 monthly summary for wtg/shubble focusing on delivering business value through map-driven location capabilities, real-time tracking improvements, and UI stability. Key initiatives included MapKit integration with dynamic library loading, address-output, and robust handling for missing locations; hardening the live location data pipeline to ensure accurate real-time updates for shuttles and vehicles; and data model updates to reflect improved tracking capabilities. Frontend stability and UX were advanced via React build refinements, UI styling tweaks, and responsive layout adjustments to support a smoother user experience. Mapping enhancements expanded to support route polylines, directions, overlays, and annotations, with improved camera and region controls for reliable visualization. Finally, observability and maintainability were strengthened through enhanced logging (timestamps and instrumentation), error handling improvements, and targeted code cleanup to reduce noise and improve debugging. Overall impact: higher data freshness, more reliable maps, enhanced developer productivity, and a better user experience with lower operational risk.
May 2025
176 Commits • 48 Features
May 1, 2025May 2025 monthly summary for wtg/shubble focusing on delivering business value through map-driven location capabilities, real-time tracking improvements, and UI stability. Key initiatives included MapKit integration with dynamic library loading, address-output, and robust handling for missing locations; hardening the live location data pipeline to ensure accurate real-time updates for shuttles and vehicles; and data model updates to reflect improved tracking capabilities. Frontend stability and UX were advanced via React build refinements, UI styling tweaks, and responsive layout adjustments to support a smoother user experience. Mapping enhancements expanded to support route polylines, directions, overlays, and annotations, with improved camera and region controls for reliable visualization. Finally, observability and maintainability were strengthened through enhanced logging (timestamps and instrumentation), error handling improvements, and targeted code cleanup to reduce noise and improve debugging. Overall impact: higher data freshness, more reliable maps, enhanced developer productivity, and a better user experience with lower operational risk.
April 2025
36 Commits • 12 Features
Apr 1, 2025April 2025 focused on delivering a production-ready full-stack foundation for wtg/shubble: a Flask backend with a React frontend served through Flask, Dockerized deployment, and automated CI. Delivered core UI and routing, backend scaffolding, and environment/config discipline to enable repeatable deployments and secure builds. Implemented modern frontend tooling (Vite), robust server defaults and explicit routes, and initial infrastructure for location updates. Strengthened security posture by applying vulnerability fixes in dependencies (Dependabot, nth-check, postcss). Documented licensing and setup with an initial README. These efforts reduce onboarding time, increase deployment confidence, and provide a scalable platform for feature work.
36 Commits • 12 Features
Apr 1, 2025April 2025 focused on delivering a production-ready full-stack foundation for wtg/shubble: a Flask backend with a React frontend served through Flask, Dockerized deployment, and automated CI. Delivered core UI and routing, backend scaffolding, and environment/config discipline to enable repeatable deployments and secure builds. Implemented modern frontend tooling (Vite), robust server defaults and explicit routes, and initial infrastructure for location updates. Strengthened security posture by applying vulnerability fixes in dependencies (Dependabot, nth-check, postcss). Documented licensing and setup with an initial README. These efforts reduce onboarding time, increase deployment confidence, and provide a scalable platform for feature work.
April 2025
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Quality Metrics
Correctness86.0%
Maintainability86.4%
Architecture81.2%
Performance81.6%
AI Usage20.4%
Skills & Technologies
Programming Languages
BashC#CSSDockerfileEnvironment VariablesGitGit ConfigurationGit configurationGoGunicorn
Technical Skills
API DevelopmentAPI IntegrationAPI TestingAlembicAlgorithm OptimizationAsset ManagementAuthenticationBack End DevelopmentBackend DeploymentBackend DevelopmentBackend TestingBackend developmentBackground TasksBug FixBug Fixes
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