From d299730800cedfa9b1a9b9832e2b075dcf71e885 Mon Sep 17 00:00:00 2001
From: Julio Sanz <59529624+juliosanz@users.noreply.github.com>
Date: Sun, 18 Jan 2026 20:37:32 +0100
Subject: [PATCH] build(arch): enhanced arch support for linux build script
 (#4595)

---
 docs/building.md       | 13 ++++++++++++-
 scripts/linux_build.sh |  1 +
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/docs/building.md b/docs/building.md
index 56febbce..67b2066c 100644
--- a/docs/building.md
+++ b/docs/building.md
@@ -50,9 +50,20 @@ pkg install -y \
 #### Linux
 Dependencies vary depending on the distribution. You can reference our
 [linux_build.sh](https://github.com/LizardByte/Sunshine/blob/master/scripts/linux_build.sh) script for a list of
-dependencies we use in Debian-based and Fedora-based distributions. Please submit a PR if you would like to extend the
+dependencies we use in Debian-based, Fedora-based and Arch-based distributions. Please submit a PR if you would like to extend the
 script to support other distributions.
 
+##### KMS Capture
+If you are using KMS, patching the Sunshine binary with `setcap` is required. Some post-install scripts handle this. If building
+from source and using the binary directly, this will also work:
+
+```bash
+sudo cp build/sunshine /tmp
+sudo setcap cap_sys_admin+p /tmp/sunshine
+sudo getcap /tmp/sunshine
+sudo mv /tmp/sunshine build/sunshine
+```
+
 ##### CUDA Toolkit
 Sunshine requires CUDA Toolkit for NVFBC capture. There are two caveats to CUDA:
 
diff --git a/scripts/linux_build.sh b/scripts/linux_build.sh
index 520b6164..055e7796 100755
--- a/scripts/linux_build.sh
+++ b/scripts/linux_build.sh
@@ -157,6 +157,7 @@ dependencies=()
 
 function add_arch_deps() {
   dependencies+=(
+    'appstream-glib'
     'avahi'
     'base-devel'
     'cmake'