Notes on building MapConductor, and what we learn about maps along the way.

As the MapConductor circle, we participated in the technical self-published book event "Technical Book Expo" and sold our SwiftUI book "Learning Map App Development with a Weather Forecast App — MapConductor Introduction —". In this book, beyond introducing MapConductor itself, we present map app development knowledge that does not depend on a specific map SDK, such as how to fetch and display weather forecast data and code design. At the event, we spoke directly with visitors and received a variety of feedback about the book and MapConductor. We plan to participate in the next "Technical Book Fest 21" to be held on November 23, 2026, where we intend to introduce new developments including Android and React versions.
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A report on the React × Map Conductor map app development workshop held at Open Source Conference 2026 Hiroshima. A total of 7 participants, including beginners, experienced pin display and camera controls.
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At FOSS4G, held at the RCC Cultural Center in Hiroshima, we ran a hands-on MapConductor workshop. About 10 participants spent 3 hours getting as far as displaying a map using Swift, Kotlin, or React.
Read →The MapLibre GL JS v6 worker now ships with the package and registers itself, onMapLoaded fires at last, and TomTom is on MapLibre 6 with the rest — which also makes it loadable under Node's ESM resolver. 19 of 21 packages moved.
Read →18 artifacts including the BOM are on Maven Central. Use 1.3.1 — 1.3.0 shipped broken POMs. minSdk is now 28.
Read →16 modules tagged for Swift Package Manager and 10 pods on CocoaPods. ArcGIS, HERE and TomTom are SPM-only because of vendor constraints.
Read →21 packages on npm at one version, react-geojson-layer renamed, react-for-mapkit fixed, and exactly what does and does not load outside a bundler.
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An open-source SDK that puts the major map SDKs behind one shared API. What it does, and when it is worth having.
Read →Notes from building MapConductor, starting here.
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