libreddit/.devcontainer/devcontainer.json

{
    "name": "Rust",
    "image": "mcr.microsoft.com/devcontainers/rust:0-1-bullseye",
    "features": {
        "ghcr.io/devcontainers/features/docker-in-docker:2": {}
    },
    "portsAttributes": {
        "8080": {
            "label": "libreddit",
            "onAutoForward": "notify"
        }
    },
    "postCreateCommand": "cargo build"
}