diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f712a5d..5dca53f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,8 @@ jobs:
       - name: Install dependencies
         run: |
           dnf5 update -y
-          dnf5 install -y git make gcc ccache flex bison elfutils-devel parted vboot-utils golang xz bc tar openssl-devel
+          dnf5 install -y git make gcc ccache flex bison elfutils-devel parted vboot-utils golang xz bc tar openssl-devel python3-pip uboot-tools
+          pip3 install depthcharge-tools
 
       - uses: actions/checkout@v3
         with:
diff --git a/Makefile b/Makefile
index 24fe5e4..2e21d40 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,10 @@ IMG_A64=$(project_name)-a64.bin
 
 .PHONY: usage
 
+ifeq ($(shell uname -m), x86_64)
+        CROSS=aarch64-linux-gnu-
+endif
+
 usage:
 	@echo "usage: make [x86_64|arm64]"
 
@@ -44,6 +48,7 @@ $(KPART_X64): $(BZIMAGE_X64)
 
 $(BZIMAGE_X64): $(INITFSZ_X64)
 	cp $(CONFDIR)/$(CONFIG_X64) kernel/.config
+	make -C kernel olddefconfig
 	make -C kernel
 	cp kernel/arch/x86/boot/bzImage $(WORKDIR)/$(BZIMAGE_X64)
 
@@ -58,23 +63,30 @@ $(INITFS_X64):
 # Use 'make arm64' to build ARM64 (cross-compiling is supported).
 arm64: $(IMG_A64)
 $(IMG_A64): $(KPART_A64)
-	fallocate -l 18M $(WORKDIR)/$(IMG_A64)
+	fallocate -l 69M $(WORKDIR)/$(IMG_A64)
 	parted $(WORKDIR)/$(IMG_A64) mklabel gpt --script
-	cgpt add -i 1 -t kernel -b 2048 -s 32767 -P 15 -T 1 -S 1 $(WORKDIR)/$(IMG_A64)
+	cgpt add -i 1 -t kernel -b 2048 -s 131068 -P 15 -T 1 -S 1 $(WORKDIR)/$(IMG_A64)
 	dd if=$(WORKDIR)/$(KPART_A64) of=$(WORKDIR)/$(IMG_A64) bs=512 seek=2048 conv=notrunc
 	cp $(WORKDIR)/$(IMG_A64) $(OUTPUTDIR)/$(IMG_A64)
 	@echo 'Build complete! Resulting file saved as "$(IMG_A64)" in "images" directory.'
 
 $(KPART_A64): $(BZIMAGE_A64)
-	echo $(project_name) > $(TMPFILE)
-	futility vbutil_kernel --pack $(WORKDIR)/$(KPART_A64) --signprivate /usr/share/vboot/devkeys/kernel_data_key.vbprivk --keyblock /usr/share/vboot/devkeys/kernel.keyblock --config $(TMPFILE) --bootloader $(TMPFILE) --vmlinuz $(WORKDIR)/$(BZIMAGE_A64) --version 1 --arch arm64
+	depthchargectl build -v \
+		--board arm64-generic \
+		--kernel $(WORKDIR)/$(BZIMAGE_A64) \
+		--fdtdir $(WORKDIR)/dtbs \
+		--root none \
+		--kernel-cmdline "console=tty0" \
+		--output $(WORKDIR)/$(KPART_A64)
 	mkdir -p $(OUTPUTDIR)
 	cp $(WORKDIR)/$(KPART_A64) $(OUTPUTDIR)/$(KPART_A64)
 	@echo 'Kernel partition binary saved as "$(KPART_A64)" in "images" directory.'
 
 $(BZIMAGE_A64): $(INITFSZ_A64)
 	cp $(CONFDIR)/$(CONFIG_A64) kernel/.config
-	[ $(shell uname -m) = x86_64 ] && ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make -C kernel || make -C kernel
+	CROSS_COMPILE=$(CROSS) ARCH=arm64 make -C kernel olddefconfig
+	CROSS_COMPILE=$(CROSS) ARCH=arm64 make -C kernel
+	CROSS_COMPILE=$(CROSS) ARCH=arm64 make -C kernel dtbs_install INSTALL_DTBS_PATH=../$(WORKDIR)/dtbs
 	cp kernel/arch/arm64/boot/Image.gz $(WORKDIR)/$(BZIMAGE_A64)
 
 $(INITFSZ_A64): $(INITFS_A64)