diff --git a/device/testing/device-valve-jupiter/00-scaling-factor.gschema.override b/device/testing/device-valve-jupiter/00-scaling-factor.gschema.override
new file mode 100644
index 000000000..022baceb2
--- /dev/null
+++ b/device/testing/device-valve-jupiter/00-scaling-factor.gschema.override
@@ -0,0 +1,2 @@
+[org.gnome.desktop.interface]
+scaling-factor=2  
diff --git a/device/testing/device-valve-jupiter/APKBUILD b/device/testing/device-valve-jupiter/APKBUILD
new file mode 100644
index 000000000..941e37ac8
--- /dev/null
+++ b/device/testing/device-valve-jupiter/APKBUILD
@@ -0,0 +1,68 @@
+# Maintainer: Clayton Craft <clayton@craftyguy.net>
+pkgname=device-valve-jupiter
+pkgdesc="Valve Steam Deck"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="x86_64"
+options="!check !archcheck"
+depends="
+	gummiboot
+	linux-edge
+	linux-firmware-none
+	postmarketos-base
+	"
+makedepends="devicepkg-dev"
+subpackages="
+	$pkgname-gnome-mobile:gnome_mobile
+	$pkgname-nonfree-firmware:nonfree_firmware
+	$pkgname-vulkan
+	"
+source="
+	00-scaling-factor.gschema.override
+	deviceinfo
+	initramfs.modules
+	"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+
+	install -Dm644 "$srcdir"/initramfs.modules \
+		"$pkgdir"/usr/share/mkinitfs/modules/jupiter.modules
+}
+
+nonfree_firmware() {
+	pkgdesc="Firmware for the Steam Deck"
+	depends="
+		linux-firmware-amdgpu
+		linux-firmware-cirrus
+		linux-firmware-rtl_bt
+		linux-firmware-rtw88
+	"
+
+	mkdir -p "$subpkgdir"
+}
+
+vulkan() {
+	install_if="$pkgname=$pkgver-r$pkgrel vulkan-loader"
+	depends="mesa-vulkan-ati"
+	mkdir "$subpkgdir"
+}
+
+gnome_mobile() {
+	install_if="$pkgname=$pkgver-r$pkgrel postmarketos-ui-gnome-mobile"
+	install -Dm644 "$srcdir"/00-scaling-factor.gschema.override \
+		-t "$subpkgdir"/usr/share/glib-2.0/schemas/
+}
+
+
+sha512sums="
+f2b0e3bf013b87e13828f95d3db7327c7afee33a0703d764ea5b96f0f791a01af2f2685ab5b17db1729fe68e78fd0e39f3a9b2f53530aa493897066d87b43248  00-scaling-factor.gschema.override
+4c6da65957641ece0c823dc913d83868cd990aaaab2b379e51ea2b0868bd7797da2782e824acebdf4b1d833e84673b65323b827d7001cefa9f9b9006be897b12  deviceinfo
+43e5218da859222d54a6a32b618ada8ce14c5f7f1f8e7f0efffadd2df6a05051221ee612fd04d067f956935e4b9eb3321863a2ccd32abcf5fc878e6b0ee84aef  initramfs.modules
+"
diff --git a/device/testing/device-valve-jupiter/deviceinfo b/device/testing/device-valve-jupiter/deviceinfo
new file mode 100644
index 000000000..f7451c30a
--- /dev/null
+++ b/device/testing/device-valve-jupiter/deviceinfo
@@ -0,0 +1,26 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell
+# scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Valve Steam Deck"
+deviceinfo_manufacturer="Valve"
+deviceinfo_codename="valve-jupiter"
+deviceinfo_year="2022"
+deviceinfo_modules_initfs="amd-pmc amd-sfh-hid ahci ehci_hcd ehci_pci hid_generic jbd2 libahci libata mbcache mmc_block mmc_core pwm_vibra scsi_mod sd sd_mod sdhci sdhci-pci sdhci_acpi sg uas usb usb_storage usbhid xhci_hcd xhci_pci"
+deviceinfo_arch="x86_64"
+deviceinfo_gpu_accelerated="true"
+
+# Device related
+deviceinfo_chassis="tablet"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="1280"
+deviceinfo_screen_height="800"
+deviceinfo_framebuffer_landscape="true"
+deviceinfo_kernel_cmdline="console=tty1 fbcon=rotate:1 fbcon=vc:4-6 spi_amd.speed_dev=1 amdgpu.gttsize=8128 amd_iommu=off tsc=directsync"
+# Bootloader related
+deviceinfo_flash_method="none"
+deviceinfo_generate_gummiboot="true"
+deviceinfo_partition_type="gpt"
+deviceinfo_boot_filesystem="fat32"
diff --git a/device/testing/device-valve-jupiter/initramfs.modules b/device/testing/device-valve-jupiter/initramfs.modules
new file mode 100644
index 000000000..20d7e54c0
--- /dev/null
+++ b/device/testing/device-valve-jupiter/initramfs.modules
@@ -0,0 +1,2 @@
+# Support for the Steam controller
+hid-steam