wtf is next-server?

Bottles Next Server is the backend service that powers Bottles, an application for running Windows software on Linux. This repository contains the server-side code that handles communication between the Bottles app and whatever systems it talks to, such as update checks, configuration downloads, or other remote features. The server is written in Rust and uses a technology called gRPC to communicate. In practical terms, gRPC is a structured way for apps to talk to a server, where both sides agree on a specific format for the messages they exchange. You can think of it like a more rigid and predictable version of a typical web API. The server listens for requests and responds with data in a structured format. Someone working on the Bottles client app or maintaining the Bottles infrastructure would use this server. For example, if the Bottles app needs to check whether a particular component or runner is up to date, it would call this server and receive a structured response back. The README includes a simple health check example that confirms the server is running and responsive, which is a common first step when setting up or debugging a service. The README doesn't go into detail about the full range of features or endpoints the server exposes beyond that basic health check. What's notable is that the project is built in Rust, a language known for performance and memory safety, and it relies on gRPC rather than a more conventional REST API. This suggests the Bottles team is prioritizing speed, type safety, and reliability in how the client and server interact, though the specifics of what the server actually handles are not documented in the README.