diff --git a/buildroot-external/README.md b/buildroot-external/README.md
index 35b03a0..1b3c7d8 100644
--- a/buildroot-external/README.md
+++ b/buildroot-external/README.md
@@ -28,7 +28,6 @@ To build out of tree, add `O=/PATH/TO/BUILD/DIR` and continue in this directory
 ### WiFi
 To enable WiFi, add your WiFi's SSID and password to `/etc/wpa_supplicant.conf`:
 ```
-ctrl_interface=/var/run/wpa_supplicant
 ap_scan=1
 
 network={
diff --git a/buildroot-external/board/raspberrypi/common/post-build.sh b/buildroot-external/board/raspberrypi/common/post-build.sh
index e11b53e..7c97513 100755
--- a/buildroot-external/board/raspberrypi/common/post-build.sh
+++ b/buildroot-external/board/raspberrypi/common/post-build.sh
@@ -13,7 +13,7 @@ do
 
 auto wlan0
 iface wlan0 inet dhcp
-        pre-up wpa_supplicant -B -Dwext -iwlan0 -c/etc/wpa_supplicant.conf
+        pre-up wpa_supplicant -B -iwlan0 -c/etc/wpa_supplicant.conf
         post-down killall -q wpa_supplicant
         wait-delay 15
 __EOF__
diff --git a/buildroot-external/configs/snapos_rpi2_defconfig b/buildroot-external/configs/snapos_rpi2_defconfig
index d34b61d..58b4f52 100644
--- a/buildroot-external/configs/snapos_rpi2_defconfig
+++ b/buildroot-external/configs/snapos_rpi2_defconfig
@@ -5,7 +5,7 @@ BR2_ARM_FPU_NEON_VFPV4=y
 BR2_CCACHE=y
 BR2_CCACHE_DIR="$(HOME)/.ccache"
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_TARGET_GENERIC_HOSTNAME="snapcast"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Snapcast"
@@ -17,7 +17,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_SNAPOS_PATH)/board/raspberrypi/comm
 BR2_ROOTFS_POST_SCRIPT_ARGS="--add-wlan0 --add-audio --speedup-boot --raise-volume --mount-boot"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,64d0a9870ac14d5eb5253f67d984ae348eec1393)/linux-64d0a9870ac14d5eb5253f67d984ae348eec1393.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,581049d718caf95f5feb00607ac748d5841cf27c)/linux-581049d718caf95f5feb00607ac748d5841cf27c.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="bcm2709"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2709-rpi-2-b"
@@ -28,6 +28,9 @@ BR2_PACKAGE_ALSA_UTILS_APLAY=y
 BR2_PACKAGE_ALSA_UTILS_SPEAKER_TEST=y
 BR2_PACKAGE_RPI_FIRMWARE=y
 BR2_PACKAGE_RPI_FIRMWARE_INSTALL_VCDBG=y
+BR2_PACKAGE_RPI_FIRMWARE_BOOTCODE_BIN=y
+BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI=y
+BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypi/config_default.txt"
 BR2_PACKAGE_DHCPCD=y
 BR2_PACKAGE_DROPBEAR=y
 BR2_PACKAGE_IW=y
diff --git a/buildroot-external/configs/snapos_rpi3_defconfig b/buildroot-external/configs/snapos_rpi3_defconfig
index de55476..7ea4b34 100644
--- a/buildroot-external/configs/snapos_rpi3_defconfig
+++ b/buildroot-external/configs/snapos_rpi3_defconfig
@@ -4,7 +4,7 @@ BR2_ARM_FPU_NEON_VFPV4=y
 BR2_CCACHE=y
 BR2_CCACHE_DIR="$(HOME)/.ccache"
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_TARGET_GENERIC_HOSTNAME="snapcast"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Snapcast"
@@ -16,7 +16,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_SNAPOS_PATH)/board/raspberrypi/comm
 BR2_ROOTFS_POST_SCRIPT_ARGS="--add-pi3-miniuart-bt-overlay --add-wlan0 --add-audio --speedup-boot --raise-volume --mount-boot"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,64d0a9870ac14d5eb5253f67d984ae348eec1393)/linux-64d0a9870ac14d5eb5253f67d984ae348eec1393.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,581049d718caf95f5feb00607ac748d5841cf27c)/linux-581049d718caf95f5feb00607ac748d5841cf27c.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="bcm2709"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2710-rpi-3-b bcm2710-rpi-3-b-plus bcm2710-rpi-cm3"
@@ -28,6 +28,9 @@ BR2_PACKAGE_ALSA_UTILS_SPEAKER_TEST=y
 BR2_PACKAGE_RPI_BT_FIRMWARE=y
 BR2_PACKAGE_RPI_FIRMWARE=y
 BR2_PACKAGE_RPI_FIRMWARE_INSTALL_VCDBG=y
+BR2_PACKAGE_RPI_FIRMWARE_BOOTCODE_BIN=y
+BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI=y
+BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypi3/config_3.txt"
 BR2_PACKAGE_RPI_WIFI_FIRMWARE=y
 BR2_PACKAGE_DHCPCD=y
 BR2_PACKAGE_DROPBEAR=y
diff --git a/buildroot-external/configs/snapos_rpi4_defconfig b/buildroot-external/configs/snapos_rpi4_defconfig
index 1e08c19..c9058a4 100644
--- a/buildroot-external/configs/snapos_rpi4_defconfig
+++ b/buildroot-external/configs/snapos_rpi4_defconfig
@@ -4,7 +4,7 @@ BR2_ARM_FPU_NEON_VFPV4=y
 BR2_CCACHE=y
 BR2_CCACHE_DIR="$(HOME)/.ccache"
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_TARGET_GENERIC_HOSTNAME="snapcast"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Snapcast"
@@ -16,7 +16,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_SNAPOS_PATH)/board/raspberrypi/comm
 BR2_ROOTFS_POST_SCRIPT_ARGS="--add-pi3-miniuart-bt-overlay --add-wlan0 --add-audio --speedup-boot --raise-volume --mount-boot"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,64d0a9870ac14d5eb5253f67d984ae348eec1393)/linux-64d0a9870ac14d5eb5253f67d984ae348eec1393.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,9878a118cbdb7779fd15caa45915d22bff381ba3)/linux-9878a118cbdb7779fd15caa45915d22bff381ba3.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="bcm2711"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2711-rpi-4-b"
@@ -29,6 +29,7 @@ BR2_PACKAGE_RPI_BT_FIRMWARE=y
 BR2_PACKAGE_RPI_FIRMWARE=y
 BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI4=y
 BR2_PACKAGE_RPI_FIRMWARE_INSTALL_VCDBG=y
+BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypi4/config_4.txt"
 BR2_PACKAGE_RPI_WIFI_FIRMWARE=y
 BR2_PACKAGE_DHCPCD=y
 BR2_PACKAGE_DROPBEAR=y
diff --git a/buildroot-external/configs/snapos_rpi_defconfig b/buildroot-external/configs/snapos_rpi_defconfig
index d3cf61a..da0909f 100644
--- a/buildroot-external/configs/snapos_rpi_defconfig
+++ b/buildroot-external/configs/snapos_rpi_defconfig
@@ -4,7 +4,7 @@ BR2_ARM_EABIHF=y
 BR2_CCACHE=y
 BR2_CCACHE_DIR="$(HOME)/.ccache"
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_TARGET_GENERIC_HOSTNAME="snapcast"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Snapcast"
@@ -16,7 +16,7 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_SNAPOS_PATH)/board/raspberrypi/comm
 BR2_ROOTFS_POST_SCRIPT_ARGS="--add-wlan0 --add-audio --speedup-boot --raise-volume --mount-boot"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,64d0a9870ac14d5eb5253f67d984ae348eec1393)/linux-64d0a9870ac14d5eb5253f67d984ae348eec1393.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,9878a118cbdb7779fd15caa45915d22bff381ba3)/linux-9878a118cbdb7779fd15caa45915d22bff381ba3.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm"
@@ -27,6 +27,9 @@ BR2_PACKAGE_ALSA_UTILS_APLAY=y
 BR2_PACKAGE_ALSA_UTILS_SPEAKER_TEST=y
 BR2_PACKAGE_RPI_FIRMWARE=y
 BR2_PACKAGE_RPI_FIRMWARE_INSTALL_VCDBG=y
+BR2_PACKAGE_RPI_FIRMWARE_BOOTCODE_BIN=y
+BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI=y
+BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypi/config_default.txt"
 BR2_PACKAGE_DHCPCD=y
 BR2_PACKAGE_DROPBEAR=y
 BR2_PACKAGE_IW=y
diff --git a/buildroot-external/package/snapcast/snapcast.mk b/buildroot-external/package/snapcast/snapcast.mk
index b2fc4fb..b4e2454 100644
--- a/buildroot-external/package/snapcast/snapcast.mk
+++ b/buildroot-external/package/snapcast/snapcast.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SNAPCAST_VERSION = v0.20.0
+SNAPCAST_VERSION = v0.26.0
 SNAPCAST_SITE = $(call github,badaix,snapcast,$(SNAPCAST_VERSION))
 SNAPCAST_DEPENDENCIES = libogg alsa-lib avahi # libstdcpp libatomic libflac libvorbisidec
 SNAPCAST_LICENSE = GPL-3.0+