There are example servers at examples/ that show valid Bevy application configurations for different Bevy versions.
In short here are the requirements:
A Rust project with the bevy dependency and the bevy_remote feature enabled. Bevy should be at least 0.15.x but 0.16.x is required for multiple features (display resources and registry, modify components and resources).
# Cargo.toml
[dependencies]
bevy = { version = "0.16.0", features = ["bevy_remote"] }
A Bevy application with the RemotePlugin and RemoteHttpPlugin plugins enabled.