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Simple and extensible nix build library for real-world projects

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Description

Simple, yet extensible, batteries-included Nix flake bootstrapping library for real-world projects with focus on building reproducible, portable binary artifacts for various targets efficiently and with little to no configuration.

Features

  • 0-config reproducible, portable binary artifacts
    • Cross-compilation out-of-the-box
    • Tiny OCI (Docker) images with statically-linked binaries out-of-the-box
  • Automatic per-system flake generation from a shared definition with consistent API
  • Source filtering

Usage

Generic flakes

nixify.lib.mkFlake provides the flake construction functionality that all other language specific subsystems rely upon. It can be used to build a plain Nix flake or a generic project in your language of choice.

Examples

Rust

nixify relies on two files to "Nixify" Rust projects:

  • Cargo.toml (required), where pname and version will be taken from. Note, that virtual manifests are supported as well.
  • rust-toolchain.toml (optional). If exists, nixify will set up the Rust toolchain using data contained in this file. For cross-compilation scenarios, nixify will automatically add missing targets to the toolchain.

Cross-compilation

aarch64-darwin aarch64-linux x86_64-darwin x86_64-linux
aarch64-apple-darwin ✔️ ✔️ ✔️ ✔️
aarch64-unknown-linux-gnu ✔️ ✔️ ✔️ ✔️
aarch64-unknown-linux-musl ✔️ ✔️ ✔️ ✔️
aarch64-linux-android ✔️
arm-unknown-linux-gnueabihf ✔️ ✔️ ✔️ ✔️
arm-unknown-linux-musleabihf ✔️ ✔️ ✔️ ✔️
armv7-unknown-linux-gnueabihf ✔️ ✔️ ✔️ ✔️
armv7-unknown-linux-musleabihf ✔️ ✔️ ✔️ ✔️
powerpc64le-unknown-linux-gnu ✔️ ✔️ ✔️ ✔️
riscv64gc-unknown-linux-gnu ✔️ ✔️ ✔️ ✔️
s390x-unknown-linux-gnu ✔️ ✔️ ✔️ ✔️
wasm32-unknown-unknown ✔️ ✔️ ✔️ ✔️
wasm32-wasi ✔️ ✔️ ✔️ ✔️
x86_64-apple-darwin ✔️ ✔️ ✔️ ✔️
x86_64-pc-windows-gnu ✔️ ✔️ ✔️ ✔️
x86_64-unknown-linux-gnu ✔️ ✔️ ✔️ ✔️
x86_64-unknown-linux-musl ✔️ ✔️ ✔️ ✔️

Template

To nixify a Rust project:

nix flake init --template 'github:rvolosatovs/nixify#rust'

Examples

A flake definition at examples/rust-hello/flake.nix:

{
  inputs.nixify.url = github:rvolosatovs/nixify;

  outputs = {nixify, ...}:
    nixify.lib.rust.mkFlake {
      src = ./.;
    };
}

Produces the following outputs:

$ nix flake show --no-write-lock-file 'github:rvolosatovs/nixify?dir=examples/rust-hello'
<...>
├───apps
│   ├───aarch64-darwin
│   │   ├───default: app
│   │   ├───rust-hello: app
│   │   └───rust-hello-debug: app
│   ├───aarch64-linux
│   │   ├───default: app
│   │   ├───rust-hello: app
│   │   └───rust-hello-debug: app
│   ├───x86_64-darwin
│   │   ├───default: app
│   │   ├───rust-hello: app
│   │   └───rust-hello-debug: app
│   └───x86_64-linux
│       ├───default: app
│       ├───rust-hello: app
│       └───rust-hello-debug: app
├───checks
│   ├───aarch64-darwin
│   │   ├───audit: derivation 'rust-hello-audit-0.1.0'
│   │   ├───clippy: derivation 'rust-hello-clippy-0.1.0'
│   │   ├───doc: derivation 'rust-hello-doc-0.1.0'
│   │   ├───fmt: derivation 'rust-hello-fmt-0.1.0'
│   │   └───nextest: derivation 'rust-hello-nextest-0.1.0'
│   ├───aarch64-linux
│   │   ├───audit: derivation 'rust-hello-audit-0.1.0'
│   │   ├───clippy: derivation 'rust-hello-clippy-0.1.0'
│   │   ├───doc: derivation 'rust-hello-doc-0.1.0'
│   │   ├───fmt: derivation 'rust-hello-fmt-0.1.0'
│   │   └───nextest: derivation 'rust-hello-nextest-0.1.0'
│   ├───x86_64-darwin
│   │   ├───audit: derivation 'rust-hello-audit-0.1.0'
│   │   ├───clippy: derivation 'rust-hello-clippy-0.1.0'
│   │   ├───doc: derivation 'rust-hello-doc-0.1.0'
│   │   ├───fmt: derivation 'rust-hello-fmt-0.1.0'
│   │   └───nextest: derivation 'rust-hello-nextest-0.1.0'
│   └───x86_64-linux
│       ├───audit: derivation 'rust-hello-audit-0.1.0'
│       ├───clippy: derivation 'rust-hello-clippy-0.1.0'
│       ├───doc: derivation 'rust-hello-doc-0.1.0'
│       ├───fmt: derivation 'rust-hello-fmt-0.1.0'
│       └───nextest: derivation 'rust-hello-nextest-0.1.0'
├───devShells
│   ├───aarch64-darwin
│   │   └───default: development environment 'nix-shell'
│   ├───aarch64-linux
│   │   └───default: development environment 'nix-shell'
│   ├───x86_64-darwin
│   │   └───default: development environment 'nix-shell'
│   └───x86_64-linux
│       └───default: development environment 'nix-shell'
├───formatter
│   ├───aarch64-darwin: package 'alejandra-3.0.0'
│   ├───aarch64-linux: package 'alejandra-3.0.0'
│   ├───x86_64-darwin: package 'alejandra-3.0.0'
│   └───x86_64-linux: package 'alejandra-3.0.0'
├───overlays
│   ├───default: Nixpkgs overlay
│   ├───fenix: Nixpkgs overlay
│   ├───rust-hello: Nixpkgs overlay
│   └───rust-overlay: Nixpkgs overlay
└───packages
    ├───aarch64-darwin
    │   ├───build-rust-hello-oci: package 'build-rust-hello-oci'
    │   ├───default: package 'rust-hello-0.1.0'
    │   ├───rust-hello: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-wasm32-wasi: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
    │   ├───rust-hello-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-wasm32-wasi: package 'rust-hello-0.1.0'
    │   ├───rust-hello-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   └───rust-hello-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    ├───aarch64-linux
    │   ├───build-rust-hello-oci: package 'build-rust-hello-oci'
    │   ├───default: package 'rust-hello-0.1.0'
    │   ├───rust-hello: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-linux-android: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-linux-android-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-linux-android-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-linux-android: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-linux-android-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-linux-android-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-wasm32-wasi: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
    │   ├───rust-hello-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-wasm32-wasi: package 'rust-hello-0.1.0'
    │   ├───rust-hello-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   └───rust-hello-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    ├───x86_64-darwin
    │   ├───build-rust-hello-oci: package 'build-rust-hello-oci'
    │   ├───default: package 'rust-hello-0.1.0'
    │   ├───rust-hello: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-wasm32-wasi: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-debug-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
    │   ├───rust-hello-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-wasm32-wasi: package 'rust-hello-0.1.0'
    │   ├───rust-hello-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-apple-darwin: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
    │   ├───rust-hello-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
    │   ├───rust-hello-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
    │   └───rust-hello-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
    └───x86_64-linux
        ├───build-rust-hello-oci: package 'build-rust-hello-oci'
        ├───default: package 'rust-hello-0.1.0'
        ├───rust-hello: package 'rust-hello-0.1.0'
        ├───rust-hello-aarch64-apple-darwin: package 'rust-hello-0.1.0'
        ├───rust-hello-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-aarch64-linux-android: package 'rust-hello-0.1.0'
        ├───rust-hello-aarch64-linux-android-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-aarch64-linux-android-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
        ├───rust-hello-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
        ├───rust-hello-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
        ├───rust-hello-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-aarch64-apple-darwin: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-aarch64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-aarch64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-aarch64-linux-android: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-aarch64-linux-android-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-aarch64-linux-android-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-aarch64-unknown-linux-gnu: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-aarch64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-aarch64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-aarch64-unknown-linux-musl: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-aarch64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-aarch64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-armv7-unknown-linux-musleabihf: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-armv7-unknown-linux-musleabihf-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-armv7-unknown-linux-musleabihf-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-wasm32-wasi: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-x86_64-apple-darwin: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-debug-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
        ├───rust-hello-debug-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-debug-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-wasm32-unknown-unknown: package 'rust-hello-0.1.0'
        ├───rust-hello-wasm32-unknown-unknown-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-wasm32-unknown-unknown-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-wasm32-wasi: package 'rust-hello-0.1.0'
        ├───rust-hello-wasm32-wasi-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-wasm32-wasi-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-x86_64-apple-darwin: package 'rust-hello-0.1.0'
        ├───rust-hello-x86_64-apple-darwin-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-x86_64-apple-darwin-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-x86_64-pc-windows-gnu: package 'rust-hello-0.1.0'
        ├───rust-hello-x86_64-pc-windows-gnu-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-x86_64-pc-windows-gnu-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-x86_64-unknown-linux-gnu: package 'rust-hello-0.1.0'
        ├───rust-hello-x86_64-unknown-linux-gnu-deps: package 'rust-hello-deps-0.1.0'
        ├───rust-hello-x86_64-unknown-linux-gnu-oci: package 'docker-image-rust-hello.tar.gz'
        ├───rust-hello-x86_64-unknown-linux-musl: package 'rust-hello-0.1.0'
        ├───rust-hello-x86_64-unknown-linux-musl-deps: package 'rust-hello-deps-0.1.0'
        └───rust-hello-x86_64-unknown-linux-musl-oci: package 'docker-image-rust-hello.tar.gz'

Motivation

For a brief overview of motivation of this project to exist, see this talk at FOSDEM'23: https://archive.fosdem.org/2023/schedule/event/nix_and_nixos_a_success_story/