https://arielsmarin.com/lab/Recent content in Lab on Ariel Marin — Architectural VisualizationHugoen-USSat, 20 Jun 2026 00:00:00 -0300https://arielsmarin.com/lab/render-queue/Sat, 20 Jun 2026 00:00:00 -0300https://arielsmarin.com/lab/render-queue/<p>A small daemon that turns a watched directory into a render job queue. Jobs are JSON files; claiming a job is an atomic <code>mv</code>; recovery after a crash means moving files back. No database, no broker, no web UI.</p> <h2 id="design-notes">Design notes</h2> <ul> <li>The filesystem is the queue — <code>mv</code> gives atomicity for free.</li> <li>systemd handles restarts, logging and memory limits.</li> <li>Notifications go out through a Telegram bot on job completion or failure.</li> </ul> <h2 id="status">Status</h2> <p>Running in production on my render node since mid-2026. Next step: a <code>--dry-run</code> mode that estimates job duration from scene statistics.</p>https://arielsmarin.com/lab/contact-sheet/Wed, 11 Feb 2026 00:00:00 -0300https://arielsmarin.com/lab/contact-sheet/<p>Clients review sets of images, not single files. This CLI takes a folder of renders and produces a single annotated contact sheet: filename, resolution, and an optional note under each thumbnail.</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-text" data-lang="text"><span class="line"><span class="cl">contact-sheet ./renders --columns 4 --out review-r03.png </span></span></code></pre></div><h2 id="why">Why</h2> <p>Every delivery used to involve ten minutes of manual layout in an image editor. Now it&rsquo;s one command in the delivery script.</p> <h2 id="status">Status</h2> <p>Prototype — works for my delivery format; flags and defaults still shifting.</p>