flisk up Treats Goose Like Every Other BYO App

Flisk supports any language via the BYO resource contract, including Node, Go, Rust, Java, Ruby, and Goose. To function, applications must listen on the port defined in service.json, bind to 0.0.0.0, and return an HTTP 200 on the healthCheckPath. Users provide a Dockerfile or image. While flisk up handles shared base images, the first build may be slow. Failures often occur if apps bind to 127.0.0.1, preventing Traefik from receiving responses.