This is a telegram bot that will watermark images by placing a little logo in the bottom right corner, this bot will choose the ideal logo based on the contrasts in the corner of the image. You can fork this and change the assets and logos to your liking.
You need to populate the .env file locally via heroku config --app=your-app >> .env OR
This has the default notation of KEY:VALUE but heroku local reads it as KEY=VALUE so make sure you change the files format.
You need heroku cli to ensure .env file gets loaded in. For development simply use npm run start