diff --git a/builder/build-iso.sh b/builder/build-iso.sh
index 0c917d6..86ffae4 100755
--- a/builder/build-iso.sh
+++ b/builder/build-iso.sh
@@ -41,11 +41,14 @@ pacman-key --lsign-key 40DFB630FF42BCFFB047046CF0134EE680CAC571
 pacman --config /configs/pacman-online-${OMARCHY_MIRROR}.conf --noconfirm -Sy omarchy-keyring
 pacman-key --populate omarchy
 
-# Append the [omarchy] repo to the container's /etc/pacman.conf so subsequent
-# tools (notably makepkg in build-omarchy-packages.sh) can resolve omarchy-
-# only build deps like limine-snapper-sync and limine-mkinitcpio-hook.
+# Put OPR first in the container too so makepkg resolves the same overrides
+# as the online installer configuration.
 if ! grep -q '^\[omarchy\]' /etc/pacman.conf; then
-  awk '/^\[omarchy\]/,/^$/' /configs/pacman-online-${OMARCHY_MIRROR}.conf >> /etc/pacman.conf
+  opr_section=$(awk '/^\[omarchy\]/,/^$/' /configs/pacman-online-${OMARCHY_MIRROR}.conf)
+  awk -v opr="$opr_section" '/^\[core\]/ { print opr; print "" } { print }' \
+    /etc/pacman.conf >/tmp/pacman-opr-first.conf
+  install -m 644 /tmp/pacman-opr-first.conf /etc/pacman.conf
+  rm -f /tmp/pacman-opr-first.conf
 fi
 
 # Build locations
diff --git a/configs/pacman-online-edge.conf b/configs/pacman-online-edge.conf
index 0ac18d8..8f280f4 100644
--- a/configs/pacman-online-edge.conf
+++ b/configs/pacman-online-edge.conf
@@ -13,6 +13,10 @@ ParallelDownloads = 5
 SigLevel    = Required DatabaseOptional
 LocalFileSigLevel = Optional
 
+[omarchy]
+SigLevel = Optional TrustAll
+Server = https://pkgs.omarchy.org/edge/$arch
+
 [core]
 Server = https://mirror.omarchy.org/$repo/os/$arch
 Include = /etc/pacman.d/mirrorlist
@@ -25,10 +29,6 @@ Include = /etc/pacman.d/mirrorlist
 Server = https://mirror.omarchy.org/$repo/os/$arch
 Include = /etc/pacman.d/mirrorlist
 
-[omarchy]
-SigLevel = Optional TrustAll
-Server = https://pkgs.omarchy.org/edge/$arch
-
 [arch-mact2]
 Server = https://mirror.funami.tech/arch-mact2/os/x86_64
 Server = https://github.com/NoaHimesaka1873/arch-mact2-mirror/releases/download/release
diff --git a/configs/pacman-online-rc.conf b/configs/pacman-online-rc.conf
index 09bff86..f9f9020 100644
--- a/configs/pacman-online-rc.conf
+++ b/configs/pacman-online-rc.conf
@@ -13,6 +13,10 @@ ParallelDownloads = 5
 SigLevel    = Required DatabaseOptional
 LocalFileSigLevel = Optional
 
+[omarchy]
+SigLevel = Optional TrustAll
+Server = https://pkgs.omarchy.org/rc/$arch
+
 [core]
 Server = https://rc-mirror.omarchy.org/$repo/os/$arch
 Include = /etc/pacman.d/mirrorlist
@@ -25,10 +29,6 @@ Include = /etc/pacman.d/mirrorlist
 Server = https://rc-mirror.omarchy.org/$repo/os/$arch
 Include = /etc/pacman.d/mirrorlist
 
-[omarchy]
-SigLevel = Optional TrustAll
-Server = https://pkgs.omarchy.org/rc/$arch
-
 [arch-mact2]
 Server = https://mirror.funami.tech/arch-mact2/os/x86_64
 Server = https://github.com/NoaHimesaka1873/arch-mact2-mirror/releases/download/release
diff --git a/configs/pacman-online-stable.conf b/configs/pacman-online-stable.conf
index c3be65b..9589e62 100644
--- a/configs/pacman-online-stable.conf
+++ b/configs/pacman-online-stable.conf
@@ -13,6 +13,10 @@ ParallelDownloads = 5
 SigLevel    = Required DatabaseOptional
 LocalFileSigLevel = Optional
 
+[omarchy]
+SigLevel = Optional TrustAll
+Server = https://pkgs.omarchy.org/stable/$arch
+
 [core]
 Server = https://stable-mirror.omarchy.org/$repo/os/$arch
 Include = /etc/pacman.d/mirrorlist
@@ -25,10 +29,6 @@ Include = /etc/pacman.d/mirrorlist
 Server = https://stable-mirror.omarchy.org/$repo/os/$arch
 Include = /etc/pacman.d/mirrorlist
 
-[omarchy]
-SigLevel = Optional TrustAll
-Server = https://pkgs.omarchy.org/stable/$arch
-
 [arch-mact2]
 Server = https://mirror.funami.tech/arch-mact2/os/x86_64
 Server = https://github.com/NoaHimesaka1873/arch-mact2-mirror/releases/download/release