## Requirements

- [ ] `./functions`: set Infura project ID through `firebase functions:config:set infura.projectid=`
	- [ ] also set `integration.secret`
	- [ ] also set `discord.webhookurl`
	- [ ] also set `mailgun.api_key`, `mailgun.api_url`, `mailgun.from_domain`, `mailgun.from_email`
- [ ] `./functions/package.json`: dependencies for backend, run `npm i` in `./functions`