Getting started

Set up Kalm

Use a full JDK 25 or newer and Maven. Kalm is currently a development snapshot; public package installation is not available yet.

Clone Kalm using Git, then build it and add its launcher to your shell's path:

git clone https://github.com/TD99/kalm.git
cd kalm
mvn install
export PATH="$PWD/bin:$PATH"
kalm --version

Keep that shell open for the commands below. On Windows, add the repository's bin directory to PATH and use kalm.bat.

Write your first program

Create a separate project directory, then create src/main/kalm/App.kalm:

pub fun main() -> Unit:
    sayLine("Hello, Kalm!")

From your project directory:

kalm run

Hello, Kalm!

Keep going

Follow Learn Kalm to build a small text-statistics CLI. Browse the language guide for explanations or Examples for a small piece of syntax.

For an existing Java project, use the Maven or Gradle integration. The CLI guide covers checking, formatting, building, and testing.