Delivered dynamic hot-reload for tile sources (COG and PMTiles) in CommanderStorm/martin, enabling updates to tile catalogs without server restarts. Implemented COGReloader and PMTilesReloader following the MBTilesReloader pattern, with filesystem watching, diff-based changes applied via TileSourceManager, and integration tests for lifecycle events. Refactored shared discovery logic to discover_sources_by_ext to reduce duplication; PMTilesReloader guards against non-filesystem URLs. Documentation updates and end-to-end tests accompany the feature.

2026-04 monthly summary for CommanderStorm/martin. This period delivered foundational enhancements to source handling that boost startup robustness, runtime stability, and support for live-like updates. Implemented TileSourceManager and ReloadAdvisory to centralize tile source state, reduce clone costs, and enable diff-based updates. Added a new CLI option --on-invalid to give operators explicit control over startup behavior when sources are invalid, improving resilience. Key refactors include replacing dual Data registrations with a single TileSourceManager, updating tile-serving handlers to consume the manager, and strengthening the TileCache/TileSources integration for safer invalidation and cache coherence. The server state was simplified (single tile_manager), and the catalog/generation paths were updated to reflect live source changes without downtime. All six integration test suites were updated to cover the new lifecycle. Business impact: reduced startup risk from invalid sources, faster and more reliable tile source reloads, and a clearer operational model for managing sources in production. The work lays the groundwork for live-reload features and reduces ongoing maintenance complexity. Technologies/skills demonstrated include Rust concurrency primitives (Arc, DashMap), Actix-web server design, diff-based update semantics, CLI integration, and comprehensive test coverage.

February 2026: CommanderStorm/martin — Focused on robust GIS data handling and reliable map rendering. Implemented Cloud Optimized GeoTIFF (COG) Validation and TileJSON Generation Enhancement with stricter acceptance criteria (WebMercatorQuad compatibility), added explicit exposure of COG bounds, center, and tileSize in TileJSON, and refined zoom-level computation from image resolution and tile size. Updated tile path semantics to align with other sources and improved validation messaging to enforce a standards-compliant data pipeline. This work reduces ambiguous loads and improves data quality for downstream consumers and map rendering.

January 2026: Delivered reliability and responsiveness improvements for map interactions in maplibre-gl-js, delivering more predictable user interactions and safer resource management, improving stability for end users and reducing maintenance overhead.

December 2025 monthly summary for maplibre-gl-js focused on delivering a robust and user-friendly zoom experience. Key feature delivered: Enhanced Map Zoom Control and Constraints with refactored zoom handling to improve state management and user control over zoom levels. Introduced a new method for updating zoom constraints and added tests to ensure functionality. Also ensured alignment with product requirements by updating related documentation and changelog.