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5a42d3706a87f7b5a35827f9ae5157a2c28f23df
buzz/desktop
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npub1qyvc0c5kl4gqv2fd97fsk46tu378sqgy35vc83rvgfwne90sel7s0ed67d 5a42d3706a test(desktop): scroll-smoothness perf harness — steady-state + prepend cost 
An instrument, not a gate. Seeds a busy channel against the mock bridge and
measures the main-thread cost the headless correctness suite cannot feel.

Two measurements:
- Fast-wheel scroll of the bounded ~200-row window: compositor-cheap
  (~0.2ms layout + 1.3ms recalc over a 241-frame, 12k-px burst).
- Prepend re-render cost while scrolled up: ~9-13ms main-thread tick,
  attributable to the O(rendered-rows) parent walk (videoReviewContext
  rebuild + day-group boundaries + element construction), NOT layout
  and NOT leaf-row reconciliation (MessageRow memo bails correctly).
  Anchor holds at 0px drift on this path.

Scope limit: measures Chromium reconciliation, not the WKWebView
compositor feel — that remains the real-Tauri macOS pass.

Run: pnpm build && npx playwright test --config=playwright.perf.config.ts
Co-authored-by: Tyler Longwell <tlongwell@squareup.com>
Signed-off-by: Tyler Longwell <tlongwell@squareup.com>
2026-06-18 16:38:22 -04:00
..
public
Polish sidebar update and relay cards (#1009)
2026-06-17 18:48:35 +01:00
scripts
fix(desktop): restore timeline zoom via rem tokens + chat-as-base type scale (#1052)
2026-06-16 22:28:24 -07:00
src
fix(desktop): page older history until N visible rows, not a fixed message count
2026-06-18 16:10:46 -04:00
src-tauri
chore(release): release version 0.3.25 (#1102)
2026-06-18 00:17:44 +00:00
tests
test(desktop): scroll-smoothness perf harness — steady-state + prepend cost
2026-06-18 16:38:22 -04:00
.gitignore
…
biome.json
feat: pnpm workspace, deep links, and web repos page (#476)
2026-05-04 17:09:25 -07:00
components.json
…
index.html
Rename desktop app to Buzz (#960)
2026-06-11 15:06:24 +00:00
package.json
chore(release): release version 0.3.25 (#1102)
2026-06-18 00:17:44 +00:00
playwright.config.ts
fix(desktop): single-owner anchored scroll for dynamic loading
2026-06-18 12:36:44 -04:00
playwright.perf.config.ts
test(desktop): scroll-smoothness perf harness — steady-state + prepend cost
2026-06-18 16:38:22 -04:00
postcss.config.js
fix(deps): migrate Tailwind CSS from v3 to v4 (#711)
2026-05-22 20:45:47 -04:00
README.md
Rename desktop app to Buzz (#960)
2026-06-11 15:06:24 +00:00
tailwind.config.js
Use Inter for app typography (#899)
2026-06-17 18:56:57 +01:00
test-loader-hooks.mjs
fix(delete): make agent-deleted messages disappear from desktop UI immediately (#918)
2026-06-09 23:02:13 -07:00
test-loader.mjs
feat(desktop): thread-aware notifications with mutable follow/mute controls (#761)
2026-05-28 18:43:41 -04:00
tsconfig.json
feat: preview features (experiments settings UI) (#888)
2026-06-09 09:53:09 -07:00
tsconfig.node.json
…
vite.config.ts
feat: preview features (experiments settings UI) (#888)
2026-06-09 09:53:09 -07:00

README.md

Buzz

Desktop chat shell with:

  • Tauri + React + TypeScript + Vite
  • Tailwind CSS
  • shadcn/ui-ready shared components
  • Biome (lint/format/check)
  • Feature-driven frontend structure

Scripts

  • pnpm dev - run the web frontend
  • pnpm tauri dev - run the desktop app
  • pnpm build - typecheck and build frontend
  • pnpm typecheck - TypeScript checks
  • pnpm lint - Biome lint
  • pnpm format - Biome format (write)
  • pnpm check - Biome check

Structure

  • src/shared - reusable app-wide code (ui, lib, styles)
  • src/features - feature modules (vertical slices)
  • src/app - top-level app composition