diff --git a/Makefile b/Makefile
index 6964a96c..b974ec5b 100644
--- a/Makefile
+++ b/Makefile
@@ -52,15 +52,27 @@ export http_proxy
 .PHONY: all
 all: disk-ufs.img disk-sdcard.img
 
-rootfs.tar: debos-recipes/qualcomm-linux-debian-rootfs.yaml
+rootfs.tar dtbs.tar.gz: debos-recipes/qualcomm-linux-debian-rootfs.yaml
 	$(DEBOS_CMD) $<
 
-disk-ufs.img: debos-recipes/qualcomm-linux-debian-image.yaml rootfs.tar
+DISK_UFS_IMAGES := disk-ufs.img \
+	disk-ufs.img1 \
+	disk-ufs.img2
+
+$(DISK_UFS_IMAGES): debos-recipes/qualcomm-linux-debian-image.yaml rootfs.tar
 	$(DEBOS_CMD) $<
 
-disk-sdcard.img: debos-recipes/qualcomm-linux-debian-image.yaml rootfs.tar
+DISK_SDCARD_IMAGES := disk-sdcard.img \
+	disk-sdcard.img1 \
+	disk-sdcard.img2
+
+$(DISK_SDCARD_IMAGES): debos-recipes/qualcomm-linux-debian-image.yaml rootfs.tar
 	$(DEBOS_CMD) -t imagetype:sdcard $<
 
+.PHONY: flash
+flash: debos-recipes/qualcomm-linux-debian-flash.yaml dtbs.tar.gz
+	$(DEBOS_CMD) $<
+
 .PHONY: test
 test: disk-ufs.img
 	# rootfs/ is a build artifact, so should not be scanned for tests
@@ -68,7 +80,7 @@ test: disk-ufs.img
 
 .PHONY: clean
 clean:
-	rm -f disk-ufs.img1 disk-ufs.img2 disk-ufs.img
-	rm -f disk-sdcard.img1 disk-sdcard.img2 disk-sdcard.img
+	rm -f $(DISK_UFS_IMAGES)
+	rm -f $(DISK_SDCARD_IMAGES)
 	rm -f rootfs.tar
 	rm -f dtbs.tar.gz
diff --git a/README.md b/README.md
index 9a7b6d8a..93547ad8 100644
--- a/README.md
+++ b/README.md
@@ -102,13 +102,13 @@ To build flashable assets for all supported boards, follow these steps:
 
 1. build flashable assets from downloaded boot binaries, the DTBs, and pointing at the UFS/SD card disk images
     ```bash
-    debos debos-recipes/qualcomm-linux-debian-flash.yaml
+    make flash
 
     # (optional) if you've built U-Boot for the RB1, run this instead:
-    #debos -t u_boot_rb1:u-boot/rb1-boot.img debos-recipes/qualcomm-linux-debian-flash.yaml
+    #EXTRA_DEBOS_OPTS="-t u_boot_rb1:u-boot/rb1-boot.img" make flash
 
     # (optional) build only a subset of boards:
-    #debos -t target_boards:qcs615-ride,qcs6490-rb3gen2-vision-kit debos-recipes/qualcomm-linux-debian-flash.yaml
+    #EXTRA_DEBOS_OPTS="-t target_boards:qcs615-ride,qcs6490-rb3gen2-vision-kit" make flash
     ```
 
 1. enter Emergency Download Mode (see section below) and flash the resulting images with QDL