diff --git a/Makefile b/Makefile
index a93ca20..8fb9722 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 COMMIT=db4b71ff10
 SDK_VERSION=2022-12-18_3b32af950d
 
-CONFIG=free-defconfig-$(COMMIT)
+CONFIG=nonfree-defconfig-$(COMMIT)
 BOOTSPLASH=bootsplash.jpg
 
 REPO_URL=https://github.com/coreboot/coreboot.git
@@ -23,7 +23,7 @@ build/coreboot_top.rom.sha256: build/coreboot_top.rom
 build/coreboot_top.rom: build/coreboot.rom
 	dd if="$<" of="$@" bs=1M skip=8
 
-build/coreboot.rom: $(COREBOOT_CONFIG) $(BOOTSPLASH) $(bootorder)
+build/coreboot.rom: $(COREBOOT_CONFIG) $(BOOTSPLASH) vgabios.bin
 	mkdir -p build
 	$(BUILDER) make
 
diff --git a/coreboot-sdk.sh b/coreboot-sdk.sh
index b54c408..b0e8b75 100755
--- a/coreboot-sdk.sh
+++ b/coreboot-sdk.sh
@@ -2,29 +2,42 @@
 
 while :; do
     case "$1" in
-        --config)
-            CONFIG="$2"
-            shift 2;;
-        --sdk-version)
-            SDK_VERSION="$2"
-            shift 2;;
-        --bootsplash)
-            BOOTSPLASH="$2"
-            shift 2;;
-        *)
-            break;;
+    --config)
+        CONFIG="$2"
+        shift 2
+        ;;
+    --sdk-version)
+        SDK_VERSION="$2"
+        shift 2
+        ;;
+    --bootsplash)
+        BOOTSPLASH="$2"
+        shift 2
+        ;;
+    --vgabios)
+        VGABIOS="$2"
+        shift 2
+        ;;
+    *)
+        break
+        ;;
     esac
 done
 
+[ -e "${VGABIOS}" ] &&
+    VGABIOS_MNT="-v $(pwd)/${VGABIOS}:/home/coreboot/cb_build/vgabios.bin:ro"
+
 uid=$(id -u)
 gid=$(id -g)
 
-docker run --rm -it \
+podman run --rm -it \
+    --userns=keep-id \
     --user "$uid:$gid" \
     --workdir "/home/coreboot/cb_build" \
     -v "$(pwd)/coreboot:/home/coreboot/cb_build" \
     -v "$(pwd)/build:/home/coreboot/cb_build/build" \
     -v "$(pwd)/${CONFIG}:/home/coreboot/cb_build/configs/defconfig:ro" \
     -v "$(pwd)/${BOOTSPLASH}:/home/coreboot/cb_build/bootsplash.jpg:ro" \
+    $VGABIOS_MNT \
     coreboot/coreboot-sdk:"$SDK_VERSION" \
     "$@"
diff --git a/nonfree-defconfig-db4b71ff10 b/nonfree-defconfig-db4b71ff10
new file mode 100644
index 0000000..2d791af
--- /dev/null
+++ b/nonfree-defconfig-db4b71ff10
@@ -0,0 +1,30 @@
+CONFIG_BOOTSPLASH_IMAGE=y
+CONFIG_VENDOR_LENOVO=y
+CONFIG_NO_POST=y
+CONFIG_CBFS_SIZE=0x400000
+CONFIG_VGA_BIOS=y
+CONFIG_SEABIOS_PS2_TIMEOUT=5000
+CONFIG_CONSOLE_CBMEM_BUFFER_SIZE=0x20000
+CONFIG_PCIEXP_HOTPLUG_BUSES=8
+CONFIG_PCIEXP_HOTPLUG_MEM=0x800000
+CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM=0x10000000
+CONFIG_BOARD_LENOVO_X230=y
+# CONFIG_S3_VGA_ROM_RUN is not set
+# CONFIG_H8_BEEP_ON_DEATH is not set
+CONFIG_H8_SUPPORT_BT_ON_WIFI=y
+CONFIG_BOOTBLOCK_NORMAL=y
+CONFIG_VGA_ROM_RUN=y
+CONFIG_PCI_OPTION_ROM_RUN_YABEL=y
+CONFIG_YABEL_VIRTMEM_LOCATION=0x1000000
+CONFIG_YABEL_DIRECTHW=y
+CONFIG_FRAMEBUFFER_SET_VESA_MODE=y
+CONFIG_VBE_LINEAR_FRAMEBUFFER=y
+CONFIG_BOOTSPLASH=y
+CONFIG_PCIEXP_HOTPLUG_IO=0x2000
+CONFIG_SUBSYSTEM_VENDOR_ID=0x0000
+CONFIG_SUBSYSTEM_DEVICE_ID=0x0000
+CONFIG_I2C_TRANSFER_TIMEOUT_US=500000
+CONFIG_DEFAULT_CONSOLE_LOGLEVEL_8=y
+CONFIG_SEABIOS_DEBUG_LEVEL=-1
+CONFIG_COREINFO_SECONDARY_PAYLOAD=y
+CONFIG_NVRAMCUI_SECONDARY_PAYLOAD=y
diff --git a/vgabios.bin b/vgabios.bin
new file mode 100644
index 0000000..83223da
Binary files /dev/null and b/vgabios.bin differ