The **@mapeo/core** library (the *mapfilter‑db* repo) provides an offline‑first, peer‑to‑peer mapping stack that lets developers create, query, update, and export custom OSM‑style geographic data (observations, media, etc.) while synchronising it directly between devices over Wi‑Fi or USB “sneakernet”. It’s aimed at field‑mapping applications, community‑mapping projects, and anyone who needs a lightweight, decentralized GIS solution that works on both mobile and desktop devices without relying on a central server.
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Support the dependencies of digidem/mapfilter-db
replicate two abstract-blob-store compatible stores together
writable stream that concatenates strings or binary data and calls a callback with the result
Dat Defaults for Discovery Swarm
Lightweight debugging utility for Node.js and the browser
A network swarm that uses discovery-channel to find peers
Call a callback when a readable/writable/duplex stream has completed or failed.
convert geojson to shapefile and backwards
wrap a duplex stream in a user-defined two way handshake
The crypto primitives used in hypercore, extracted into a separate module
Browser-friendly inheritance fully compatible with standard node.js inherits()
A binary stream multiplexer. Stream multiple streams of binary data over a single binary stream.
Export and Import GeoJSON from osm-p2p-db
Replicate OSM data and media using a sneakernet-style sync file.
pipe streams together and close all of them if one of them closes
Combine an array of streams into a single duplex stream using pump and duplexify
random bytes from browserify stand alone
Run an array of functions in parallel
write shapefiles from pure javascript
A tiny wrapper around Node.js streams.Transform (Streams2/3) to avoid explicit subclassing noise
deep cloning of objects and arrays
Collect a readable stream's output and errors
checks which modules you have used in your code and then makes sure they are listed as dependencies in your package.json
a tarball with constant-time reads and modifications
Recursively mkdir, like `mkdir -p`
generate mock data (random string, number, date, ipv4, etc.)
high-level p2p open street map database for node and the browser
Exposes the same interface as random-access-file but instead of writing/reading data to a file it maintains it in memory
A deep deletion module for node (like `rm -rf`)
Run an array of functions in parallel, but limit the number of tasks executing at the same time
fs-blob-store with atomic writes and deals with windows fs edge cases
JavaScript Standard Style
tap-producing test harness for node and browsers
Temporary file and directory creator
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