Major refactor to blue-build to allow more complex builds

files/gschema-overrides/zz1-power-button-settings.gschema.override

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+[org.gnome.settings-daemon.plugins.power]
+power-button-action='interactive'

files/scripts/download_install_rpms.sh

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+#!/bin/sh
+
+set -oex pipefail
+set +u
+
+# from RPMs on Github
+# Space-separated list of repo/package strings
+repos="quexten/goldwarden"
+
+# Loop through each repo/package
+for repo_package in $repos; do
+    # Split the string into repo and package using parameter expansion
+    repo=${repo_package%/*}
+    package=${repo_package#*/}
+
+    # Fetch the latest release download URL for .rpm assets
+    download_url=$(wget -qO- "https://api.github.com/repos/$repo/$package/releases/latest" \
+        | jq -r '.assets[] | select(.name | match(".rpm")) | .browser_download_url')
+
+    # Download the asset as <PACKAGE>.rpm
+    wget -qO "$package.rpm" "$download_url"
+
+    # Install the package
+    rpm-ostree install "$package.rpm"
+done

files/system/etc/.gitkeep

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+