caronc/apprise ? reverse-engineered prompt

Build me a lightweight Python notification tool that lets apps and scripts send alerts to lots of different services through one simple, consistent format.

I want a core library and a command line tool that can send messages to popular places like Telegram, Discord, Slack, Amazon SNS, Gotify, email, and other common notification services. It should support attachments and images when the service allows it, work asynchronously so it feels fast, and make it easy to configure targets with a single URL style syntax or a config file.

Also include a way to use it from automation and system admin tasks, with a clean CLI for quick sends and a developer friendly API for integrating into other Python projects. If there are tricky service details, look up the current docs online if you need to. Make it polished enough that someone can install it and start sending notifications right away.