feat: readme and pkgbuild

README.md

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+# hl-zed-dc-rpc
+A discord rich presence for the [Zed Editor](https://zed.dev/) using the [Hyprland](https://hypr.land) IPC to detect running zed instances. Why? Because the [existing extension](https://github.com/xhyrom/zed-discord-presence) is extremely broken. Why you need discord rich presence for your stupid editor in the first place is a completely different question.
+
+> **IMPORTANT:** This uses the Hyprland IPC to get events for your activity, which means this only works on Hyprland. Yes, this is sketchy af but works suprisingly well.
+
+## Installation
+If you are on Arch, you can build a package with the included [PKGBUILD](./PKGBUILD).
+
+If you are not on Arch, too bad, you'll have to build yourself:
+```
+cargo build --release
+```
+
+## Usage
+The produced executable is a deamon that should run in the background when you have zed and discord open. Start it in your hyprland config:
+```
+exec-once = hl-zed-dc-rpc
+```
+
+The daemon supports a couple of commandline arguments to customize the idle time behaviour:
+```
+Usage: hl-zed-dc-rpc [OPTIONS]
+
+Options:
+  -i, --idle <IDLE>  idle timeout in minutes [default: 10]
+  -r, --reset-idle   whether to reset the elapsed time on idle
+  -h, --help         Print help
+```
+
+## Credits
+The assets shown on Discord, including the application id are blatanly stolen from the [existing extension](https://github.com/xhyrom/zed-discord-presence). Thanks! Also tried to steal some more code but that has largely been refactored to non-resemblance.