chore: switch to dynamic architecture

layers/customized.toml

@@ -1,10 +1,17 @@
-parent = "base"
+# Use Raspberry Pi OS Bookworm as a basis for the custom image.
+#
+# Note that you can also declare your own base layer(s). For examples, see:
+# https://github.com/silitics/rugpi/tree/main/repositories/core/layers
+parent = "core/raspios-bookworm"
+
+# Include recipes for the custom image.
 recipes = [
     "core/raspberrypi",  # Prepares the Raspberry Pi base image for usage with Rugpi.
     "core/set-hostname",  # Sets a static hostname (see parameters below).
     "core/persist-root-home",  # Persists the home directory of the root user.
     "core/ssh",  # Configures SSH.
     "rugpi-extra/zsh",  # Installs ZSH.
+    "rugpi-extra/nginx",  # Installs Nginx.
     "hello-world",  # Enable the `hello-world` recipe installing the static webpage.
 ]
 

layers/delta.toml

@@ -0,0 +1,3 @@
+# This is an example for a delta layer which just installs the webpage.
+parent = "customized"
+recipes = ["hello-world"]

recipes/hello-world/recipe.toml

@@ -1 +1 @@
-dependencies = ["rugpi-extra/nginx"]
+description = "install static webpage"

rugpi-bakery.toml

@@ -1,10 +1,21 @@
 [repositories]
 rugpi-extra = { git = "https://github.com/silitics/rugpi-extra.git" }
 
-[images.rpi4]
+[images.tryboot]
+layer = "customized"
+
+# A specific image including the firmware update for Raspberry Pi 4 and CM4.
+[images.pi4]
 layer = "customized"
-# Include the firmware update for Raspberry Pi 4 and CM4.
 include_firmware = "pi4"
 
-[images.tryboot]
+# An image using the U-Boot boot flow for Raspberry Pi 3 and Zero 2.
+[images.u-boot]
+layer = "customized"
+boot_flow = "u-boot"
+
+# An `armhf` image for older Raspberry Pi's using the U-Boot boot flow.
+[images.u-boot-armhf]
 layer = "customized"
+architecture = "armhf"
+boot_flow = "u-boot"