Self-hosted apps that integrate with Apple APNs

5 open-source, self-hostable projects list Apple APNs as an integration.

• TinodeA self-hosted, open-source instant messaging platform: Go server plus Android, iOS, web and command-line clients, group chat, WebRTC calls and chatbots.
• Barkbark-server is a self-hosted open-source push notification backend for iOS devices via Apple APNs. Replace the cloud Bark service with full privacy control.
• bark-serverBackend of Bark
• flexisipFlexisip is a self-hosted, open-source SIP server suite in C++20 providing proxy, presence, conference, B2BUA, and push notifications for real-time communications.
• iGotify-Notification-AssistentSelf-hosted bridge forwarding Gotify notifications to iOS via Apple's push service and SecNtfy, with end-to-end encryption and a native iOS app.