Creating a project

Concrete projects are plain directories — there is no generator command (a concrete new scaffolding command is roadmap Phase 18 work, not implemented today). Create the two files by hand:

mkdir my_project
cd my_project

Concrete.toml:

[package]
name = "my_project"
version = "0.1.0"
license = "MIT"

src/main.con:

mod my_project {
    fn main() with(Std) -> Int {
        println("hello");
        return 0;
    }
}

Building A Project

concrete build     # compile the package
concrete run       # compile and run src/main.con
concrete test      # run #[test] functions

The manifest drives the project model: [package] metadata, the src/ layout, and (for examples in this repository) dependency on the std package. See any examples/*/Concrete.toml for a working manifest.

Current State

The project/package workflow is still evolving. Today:

• the manifest + src/ layout is the supported project shape
• it is not yet the final long-term package/dependency model
• the roadmap treats package/dependency ecosystem work as a later explicit phase

If you are working directly on the language or compiler, you will still often use the repository-level workflow rather than the project flow.