designtopack/public/site/templates/projects.json.php

<?php
function getProjectData($project) {
    $data = [
    "title" => $project->title()->value(),
    "url" => $project->url(),
    "uri" => "/" . $project->uri(),
    "modified" => $project->modified("Y-MM-d"),
    "currentStep" => $project->currentStep()->value(),
    "status" => $project->status(),
    "logo" => $project->client()->toPage() ? $project->client()->toPage()->logo()->toFile()->url() : "",
    "steps" => $project->getSteps(),
    "notifications" => Yaml::decode($project->notifications()->value),
    "uuid" => (string) $project->uuid(),
    "slug" => (string) $project->slug(),
    "isDTLEnabled" => $project->isDTLEnabled()->value() == "true" ? true : false
  ];

  if ($project->isDTLEnabled()) {
    $data["designToLight"] = processDTLProposals($project);
  }

  return $data;
}

try {
  $children = $kirby->user()->role() == "admin" ? $page->childrenAndDrafts()->map(fn($project) => getProjectData($project))->values() : $kirby->user()->projects()->toPages()->map(fn($project) => getProjectData($project))->values();
} catch (\Throwable $th) {
  throw new Exception($th->getMessage() . " line " . $th->getLine(), 1);
  $children = [];
}

$specificData = [
  "children" => $children,
];

$pageData = array_merge($genericData, $specificData);

echo json_encode([
  "page" => $pageData,
  "user" => $userData
]);