Accessibility/semantics pass aligned with React Doctor: role-based spans/divs become real buttons, role=status becomes <output>, modals use native <dialog>, author/peer flags render as <img>, and embed/challenge iframes are sandboxed. Includes review follow-ups: correct button chrome/centering/themed dialog colors and focus rings, the missing aria-label i18n keys (all languages), the Yandex image-search URL, clearer .bso setup steps, a keyboard-accessible image-search dropdown, and removal of the post-edit ('comment edited') display (mod edits unchanged).
Apply the asymmetric viewport buffer that already fixed mobile to desktop
multiboard feeds, and trim per-post mount cost so remounts during scroll-up
are cheaper:
- Desktop multiboard buffer goes from {600,600} to {1200,2400} (top-heavy),
matching the mobile pattern from 99c0bbfac so items stay mounted longer
when scrolling back up
- Cache feed post height estimate by CID in pretext-height-estimates so
remounts skip the Pretext text-measurement work
- Memoize CommentMedia and switch its expanded-media-store reads to atomic
selectors so it stops rerendering on unrelated store changes
- Memoize useCommentMediaInfo return so its reference is stable for memo
comparators downstream
- Stop useFetchGifFirstFrame from forcing an extra render on every post
mount by bailing out of equivalent setState calls
- Extract PendingModerationActions out of PostInfo so the two
usePublishCommentModeration calls only run on the post page when
mod-approval is actually pending, not on every feed item
Distinguish GIF frame loading from GIF frame failure in useFetchGifFirstFrame(), so thread and catalog thumbnails no longer render animated GIFs before the still frame arrives. Keep the existing animated fallback when the first-frame fetch actually fails.
Defer useReplies to hover-only in CatalogPost. Memo CatalogRow and Post. Remove useWindowWidth and autoUpdate from CatalogPost. Replace display:none with opacity for images. Add width/height to img tags in catalog-row and comment-media. Use Virtuoso for all rendering paths (infinite, finite, pagination). Optimize filteredComments with Set lookup. Add Vite manual chunks for markdown, virtuoso, floating-ui.
Removed all fake posts for subplebbit description and rules, including dedicated routes, components, and all related logic across the codebase. Board admins can now pin regular posts if they want to provide a description.
