We continue to have a positive experience with Fastify — a fast, unopinionated, low-overhead web framework for Node.js. It provides all the essential capabilities of a minimal web framework — including parsing, validation and serialization — along with a robust plugin system and strong community support. Our teams have seen no significant downsides in using Fastify over alternatives such as Express.js, while also gaining measurable performance improvements, making it a compelling choice for minimal web development in Node.js.
In the case where implementation in Node.js is necessary, we see that Fastify is an option that our teams are very happy with. This web framework offers ease in handling request-response validations, support for TypeScript and a plugin ecosystem giving our teams an easier experience developing software. Although it's a good option in the Node.js ecosystem, we stand by our previous advice: don't fall into Node overload scenarios.