For reference, fetch() already supports NODE_USE_ENV_PROXY as of Node.js 24.0.0. Contributed by Joyee Cheung in https://github.com/nodejs/node/pull/58980. Add setDefaultCACertificates() to node:tls This API allows dynamically configuring CA certificates that will be used by the Node.js TLS clients by default. Once called, the provided certificates will become the default CA certificate list return