signal-cli is a commandline interface for the [Signal messenger](https://signal.org/).
It supports registering, verifying, sending and receiving messages.
signal-cli uses a [patched libsignal-service-java](https://github.com/Turasa/libsignal-service-java),
-extracted from the [Signal-Android source code](https://github.com/signalapp/Signal-Android/tree/main/libsignal/service).
+extracted from the [Signal-Android source code](https://github.com/signalapp/Signal-Android/tree/main/libsignal-service).
For registering you need a phone number where you can receive SMS or incoming calls.
signal-cli is primarily intended to be used on servers to notify admins of important events.
and D-BUS interface ([man page](https://github.com/AsamK/signal-cli/blob/master/man/signal-cli-dbus.5.adoc)) .
For the JSON-RPC interface there's also a simple [example client](https://github.com/AsamK/signal-cli/tree/master/client), written in Rust.
+signal-cli needs to be kept up-to-date to keep up with Signal-Server changes.
+The official Signal clients expire after three months and then the Signal-Server can make incompatible changes.
+So signal-cli releases older than three months may not work correctly.
+
## Installation
You can [build signal-cli](#building) yourself or use
It is possible to build a native binary with [GraalVM](https://www.graalvm.org). This is still experimental and will not
work in all situations.
-1. [Install GraalVM and setup the enviroment](https://www.graalvm.org/docs/getting-started/#install-graalvm)
+1. [Install GraalVM and setup the environment](https://www.graalvm.org/docs/getting-started/#install-graalvm)
2. Execute Gradle:
./gradlew nativeCompile