Atom Package Manager dependency resolution limits after project sunset

Package Ecosystem Fragmentation

The Atom editor architecture relies on a decoupled core where extended functionality is delivered through community packages managed via npm. This system depends on a consistent build environment to resolve dependencies and ensure compatibility between the editor shell and installed packages.

Dependency Constraints

Since the official sunset of the project in December 2022, the original build servers used for package distribution are no longer active. This creates a technical gap for developers attempting to maintain legacy packages or ensure that dependencies remain compatible with the fixed Electron version embedded in the final official releases.

What are the current constraints for resolving npm dependencies when targeting the read-only official Atom build? Is there a documented method to redirect the package manager to community-maintained mirrors without modifying the core binary?