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+---
+title: "DevBlog 2026 week 30 - Stability, moving, eye-candy"
+description: "Preparing for closed beta, features nobody asked for, but we liked"
+author: Gergő Törcsvári
+pubDate: 2026-07-27
+---
+
+# Moving the infra
+
+Our week's biggest, and also the least interesting challenge was moving the infra on GitHub, Cloudflare, and every other platform we use.
+Changing api keys, moving domains, creating accounts, you know the stuff nobody likes, but still you need to do it sometimes, and it's better to do it sooner than later.
+So this week's list will be shorter, but I will add screenshots to make it up to you ;)
+
+# Comments
+
+Last time we showed the first version of comments. This week they got a full UX pass.
+
+## Bubble pins and panel
+
+The comment anchors on the canvas are now avatar bubbles (figma style), and we redesigned the floating comments panel that lists the threads.
+
+![a comment thread on the demo board — reply, reaction and an @mention](./w30-assets/comments-thread.png)
+
+## Seen, reactions, mentions
+
+Threads now have a "seen" watermark, so you can tell which ones have new activity since you last looked.
+You can react to comments with emojis, and you can @-mention your teammates.
+
+## Light and dark editor
+
+The editor now follows the light/dark mode of the platform. This needed changes all the way down in our wxwidgets port, because the editor chrome itself is native UI, not html.
+
+![the PCB editor in light mode](./w30-assets/theme-light.png)
+
+![the same board in dark mode](./w30-assets/theme-dark.png)
+
+Taking these screenshots for the post is literally how we found (and fixed) white-on-white comboboxes in dark mode.
+
+# The drift robot
+
+Last week we wrote about drift detection: if our implementation has flaws, the editor file and the ydoc file can drift apart.
+Detecting the drift is nice, but we wanted to actively hunt for the bugs that cause it.
+
+So we built a robot. Three headless clients join the same document, and play random editor actions from an action catalog. The runs are seeded, so every run is reproducible.
+At the end, the harness checks that all three clients and the server converged to the same, valid document.
+
+It found real bugs:
+- A wire could end up under the wrong parent when the edit arrived from a remote client.
+- Two users duplicating the same element could collide on identity, so duplicate now re-rolls the child uuids.
+- Concurrent asyncify fibers inside the WASM editor could step on each other, so we serialized them onto a queue.
+
+# Platform
+
+## Ingest: 4-5 hours to ~15 minutes
+
+Ingesting the official KiCad libs in production was painfully slow, and sometimes failed. We fixed three things:
+- GitLab archive downloads were rejected because of a fetch header.
+- A retried ingest created duplicate sources, now we reuse the source by its normalized repo url.
+- The per-item writes were serial, now they run on a 16-way parallel pool.
+
+A full kicad-symbols ingest went from 4-5 hours to about 15 minutes.
+
+Also, idle worker containers no longer keep themselves alive. They only renew while they are actually busy, which was a nice cost fix.
+
+## Libs UI: sources first
+
+We reworked the libs page around sources (the git repos you ingested) instead of raw lib lists.
+Every item now shows its license, and the attribution files are included in the sync bundles.
+
+We also wrote a small pure-TypeScript renderer that turns `.kicad_sym` and `.kicad_mod` files into SVG, so the lib dialogs show an instant preview without booting any WASM.
+
+![instant SVG preview of a symbol in the lib dialog](./w30-assets/svg-preview.png)
+
+# Editor
+
+## One step back
+
+Last week we wrote "we fixed (and broke) some context recovery". Well, we broke more than we fixed, so we backed out the WebGL recovery change, and re-landed only the good half separately.
+
+## Assign footprints, now stable
+
+The CvPcb dialog worked, but it could trap on open. The root cause was a thread-safety issue in wxString during the async footprint list loading, which is now fixed down in the wxwidgets layer.
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