From f16bc2749990a075892aaf49fad82c9c68f5faaa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20B=C3=B6hm?= <alexander.boehm@malbolge.net>
Date: Fri, 5 Jan 2024 15:01:24 +0100
Subject: [PATCH] Added build instruction

---
 README.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/README.md b/README.md
index 128d527..e437764 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,25 @@ Please change `DOOR_PIN` accordingly.
 
 You need to provide the environment variables
 `SPACEAPI_URL` and `API_KEY`.
+
+## Build
+
+[Install stable version of rust](https://rustup.rs/) and run a regular cargo build:
+
+```sh
+cargo build
+```
+
+### Cross compile
+
+Install arm toolchain and *libmusl* for static linked binaries:
+
+```sh
+apt-get install gcc-arm-linux-gnueabihf musl-dev musl-tools
+```
+
+Build the application for raspberry pi:
+
+```sh
+cargo build --target=armv7-unknown-linux-musleabihf
+```