pan style="color: #709870;">]</span><span style="color: #909183;">]</span>
   <span style="color: #909183;">[</span>environ.core <span style="color: #008b8b;">:refer</span> <span style="color: #709870;">[</span>env<span style="color: #709870;">]</span><span style="color: #909183;">]</span><span style="color: #7388d6;">)</span><span style="color: #707183;">)</span>

<span style="color: #707183;">(</span><span style="color: #a020f0;">defn</span> <span style="color: #0000ff;">dev-system</span>
  <span style="c