How to setup docker/headless for main-net?

[typoworx-de]

Hello,
just found this npm-package/repository and the possibility to run day-node headless, right?

I've looked at the code but I still can't figure out how to configure the right provider for main-net? sample-config just refers to testnet adresses and localhost? Is an own eth-node required?

could you provide docker-compose file for full working setup example?

By the way - I'm not shure you should provide ".env" file which seems to have some kind of private api-key in it (KEEN_WRITE_KEY)?!