chore: update readme

README.md

@@ -1,3 +1,26 @@
-# mc-wrapper
+# Alex
 
-A wrapper around a standard Minecraft server, written in Rust.
+Alex is a wrapper around a typical Minecraft server process. It acts as the
+parent process, and sits in between the user's input and the server's stdin.
+This allows Alex to support additional commands that execute Rust code.
+
+## Why
+
+The primary usecase for this is backups. A common problem I've had with
+Minecraft backups is that they fail, because the server is writing to one of
+the region files as the backup is being created. Alex solves this be sending
+`save-off` and `save-all` to the server, before creating the tarball.
+Afterwards, saving is enabled again with `save-on`.
+
+## Features
+
+* Create safe backups as gzip-compressed tarballs using the `backup` command
+* Automatically create backups periodically
+* Properly configures the process (working directory, optimisation flags)
+* Configure everything as CLI arguments or environment variables
+
+## Installation
+
+Alex is distributed as statically compiled binaries for Linux amd64 and arm64.
+These can be found
+[here](https://git.rustybever.be/Chewing_Bever/alex/packages).