next-runtime-env
Next.js Runtime Environment Configuration - Populates your environment at runtime rather than build time.
runtime-config-loader
Most applications require certain configuration values that can be changed at runtime of the app. The `environment.ts` files in an Angular application technically work for setting configuration values in an app, but those are buildtime configuration value
ts-node
TypeScript execution environment and REPL for node.js, with source map support
