I have been building a library that lets you define interactive maps as a JSON object. Now the already existing Maplibre Spec is quite strong, but every time I needed to put a map together with markers, widgets, a legend, layer controls and a nice color palette, I'd end up writing a lot of boilerplate html, Even writing with AI it would mess up the layer management and working with different kind of formats, So I started building a layer on top. Its inspired by the json-render library by vercel. Ive added support for a lot of formats and also loading data with duckdb wasm to power widgets which can filter with the viewport. Would love to get some reviews on this and if its genuinely useful to anyone for building maps!
