pushdeer
Push notification system to send messages
pushdeer is a lightweight, self-hostable push notification system designed to make it easy for individuals and small services to send messages to their own devices. 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.