feat(apps): add to nixFastBuild and clean up nix code

apps/update-sources/src/docker.ts

@@ -0,0 +1,33 @@
+import { readdirSync } from 'node:fs';
+import { spawnSync } from 'node:child_process';
+
+
+/* Constants */
+const FLAKE = process.env.FLAKE;
+
+const updateImages = (imagePath: string): string | undefined => {
+    console.log(`Updating ${imagePath.split('/').at(-1)} images`);
+
+    const out = spawnSync('updateImages', [imagePath], { shell: true }).stdout.toString();
+
+    if (!out.startsWith('# Locked')) {
+        return out;
+    }
+};
+
+export const updateDocker = () => {
+    let updates = '';
+
+    updates += updateImages(`${FLAKE}/devices/nos/modules/jellyfin`) ?? '';
+    updates += updateImages(`${FLAKE}/devices/homie/modules/home-assistant/netdaemon`) ?? '';
+
+    const DIR = `${FLAKE}/devices/nos/modules/docker`;
+
+    readdirSync(DIR, { withFileTypes: true, recursive: true }).forEach((path) => {
+        if (path.name === 'compose.nix') {
+            updates += updateImages(path.parentPath) ?? '';
+        }
+    });
+
+    return updates;
+};