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 # ![](./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/).