pushdeer
Push notification system to send messages
...It consists of a server component with a simple HTTP API, a client app for receiving notifications, and optional web/admin front ends for managing keys and devices. The design favors minimal setup and free deployment options so you can run it on inexpensive infrastructure or serverless platforms. Messages can include plain text and basic rich content, making it useful for alerts, build notifications, IoT signals, and personal automations. Because it’s open source, you retain control over data and keys instead of relying on third-party gateways. ...