atob for Node.js

The `atob` package provides a Node.js implementation of the browser's `atob` (ASCII to Binary) function, which is used for decoding Base64-encoded strings. As of April 2026, the current stable version is 2.1.2, with the last significant update in 2018 (v2.1.0). Its release cadence appears to be very slow or effectively ceased, suggesting it's in a maintenance or stable state rather than active development. The primary differentiator of this package is its use of Node.js's native `Buffer` API to emulate the browser's exact functionality, allowing developers to decode Base64 strings in a server-side environment with behavior consistent with web browsers. A key consideration, explicitly noted by the library, is that it handles Unicode data incorrectly, mirroring the behavior of the browser's native `atob` function, which is designed for ASCII data. For proper Unicode and binary support, the README suggests alternative libraries like `unibabel.js`.