cfa-simulator

Overview

This repository contains utilities for deploying interactive simulations using Python, Rust, and WebAssembly. It is still in the early stages of development so consider packages and APIs to be unstable.

Installing the cfasim CLI

# Shell (macOS / Linux)
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/CDCgov/cfa-simulator/releases/latest/download/cfasim-installer.sh | sh

# PowerShell (Windows)
powershell -ExecutionPolicy Bypass -c "irm https://github.com/CDCgov/cfa-simulator/releases/latest/download/cfasim-installer.ps1 | iex"

# uvx (ephemeral — no install)
uvx cfasim init

# cargo
cargo install cfasim

Binaries installed via the shell/PowerShell installer can self-update with cfasim update. Copies installed via cargo or uvx are managed by those tools — update them with cargo install cfasim --force or uv tool upgrade cfasim instead.

To opt into a once-per-week "new version available" hint, create ~/.cfasim/settings.toml with check_for_updates = true.

Related documents

General disclaimer This repository was created for use by CDC programs to collaborate on public health related projects in support of the CDC mission. GitHub is not hosted by the CDC, but is a third party website used by CDC and its partners to share information and collaborate on software. CDC use of GitHub does not imply an endorsement of any one particular service, product, or enterprise.

Public Domain Standard Notice

This repository constitutes a work of the United States Government and is not subject to domestic copyright protection under 17 USC § 105. This repository is in the public domain within the United States, and copyright and related rights in the work worldwide are waived through the CC0 1.0 Universal public domain dedication. All contributions to this repository will be released under the CC0 dedication. By submitting a pull request you are agreeing to comply with this waiver of copyright interest.

License Standard Notice

The repository utilizes code licensed under the terms of the Apache Software License and therefore is licensed under ASL v2 or later.

This source code in this repository is free: you can redistribute it and/or modify it under the terms of the Apache Software License version 2, or (at your option) any later version.

This source code in this repository is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Apache Software License for more details.

You should have received a copy of the Apache Software License along with this program. If not, see http://www.apache.org/licenses/LICENSE-2.0.html

The source code forked from other open source projects will inherit its license.

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This repository contains only non-sensitive, publicly available data and information. All material and community participation is covered by the Disclaimer and Code of Conduct. For more information about CDC's privacy policy, please visit http://www.cdc.gov/other/privacy.html.

Contributing Standard Notice

Anyone is encouraged to contribute to the repository by forking and submitting a pull request. (If you are new to GitHub, you might start with a basic tutorial.) By contributing to this project, you grant a world-wide, royalty-free, perpetual, irrevocable, non-exclusive, transferable license to all users under the terms of the Apache Software License v2 or later.

All comments, messages, pull requests, and other submissions received through CDC including this GitHub page may be subject to applicable federal law, including but not limited to the Federal Records Act, and may be archived. Learn more at http://www.cdc.gov/other/privacy.html.

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Additional Standard Notices

Please refer to CDC's Template Repository for more information about contributing to this repository, public domain notices and disclaimers, and code of conduct.

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