In Python, we use Arrow a lot for going between diff frameworks: file -> ( pandas <> cudf <> cugraph ). When we work with DB vendors, we now push them to provi

In Python, we use Arrow a lot for going between diff frameworks: file -> ( pandas <> cudf <> cugraph ). When we work with DB vendors, we now push them to provide Arrow instead of whatever proprietary in-house thing they've been pushing for the same, e.g., slow JSON / ODBC, untyped CSV, or some ad-hoc wire protocol. Also, we use for going between our services within a server + across. On the nodejs services + frontend JS side, there was no real equiv tool for interop -- traditional soln is slowly round-tripping through SQL/ORM or manually doing protobuf through some sort of pubsub -- so Arrow is part of how we have been taming that mess too. It'll be a longer journey for Arrow or something like it to get adopted in JS land, but I can see folks doing TypeScript and serverless wanting it for a cleaner solution to typed data, faster serialization & streaming, etc. (There is no true JS equiv of pandas nor a typed variant.) We were a bit early here b/c we wanted streaming through WebGL + OpenCL/CUDA, and while we are fans of typed data, found protobuf tooling to be too unintegrated and manual in practice.