# ![](./assets/feathermost.svg) Feathermost

Before you can use Feathermost, the admin of your Mattermost servers must set up CORS
appropriately. If this is not possible, you can use a CORS puncturing proxy, such as the mitmproxy
setup provided for development (see below).

## Development

Dependencies: none.

To run in development mode, execute `rundev.sh`.
This will start a web server, and mitmproxy to avoid CORS problems.
Dependencies for that: Bash, Python and [`mitmproxy`](https://mitmproxy.org/).

Then open http://localhost:8000/ in your browser.