* ui/ux: codify design system and migrate settings to shared primitives Document Readest's design language in DESIGN.md (Adwaita-aligned, e-ink-first, RTL-correct) and migrate every settings panel onto a small set of primitives (BoxedList, SettingsRow, SettingsSwitchRow, SettingsSelect, SettingsInput, NavigationRow, Tips, SubPageHeader). AGENTS.md links to DESIGN.md so contributors land there before inventing new chassis classes. Replace the standalone KOReader/Readwise/Hardcover Config dialogs with a single Integrations panel (Reading Sync + Content Sources sub-pages). The reader's BookMenu now hides each provider until it's configured, and Hardcover's per-book "Enable for This Book" toggle is dropped — there's no auto-sync to gate, so the flag was just extra clicks. Refresh highlight colors (two-trigger swatch + label, translatable default names), background texture / theme color selectors (border-current keeps selection legible on any backdrop), CustomFonts/CustomDictionaries (quiet list-extension style + shared Tips primitive), the OPDS catalog manager (debounced auto-download, right-aligned Browse), Set PIN, and the KOSync conflict resolver. Translate the ~30 new strings across all 33 locales. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * ui/ux: responsive typography, OPDS card polish, deep-link return paths Restore the .settings-content responsive cascade (14px desktop / 16px mobile) the legacy panels relied on by dropping hardcoded `text-sm`/`text-xs` from the new primitives. Secondary text moves to em-relative `text-[0.85em]` so it scales with the parent. Form controls (`<input>`, `<select>`) re-apply the cascade explicitly via the `settings-content` class since browsers don't inherit font-size onto form elements. Extract `<SectionTitle>` primitive (caseless-language aware via `isCaselessUILang`/`isCaselessLang`) and route every uppercase tag-style header through it: BoxedList groups, Reading Sync, Content Sources, Theme Color, Background Image, integration form labels, KOSyncResolver device labels, and the OPDS My Catalogs / Popular Catalogs sections. CJK / Arabic / Hebrew / Indic / Thai / Tibetan locales bump to `1em` since `uppercase` is a no-op on those scripts. Redesign the OPDS My Catalogs cards: whole card becomes the browse trigger (role='button'), edit/delete collapse into a 3-dot dropdown menu, and the sync-status moves to a sub-line under Auto-download so the card height stays constant whether the toggle is on/off or sync data has arrived. Plumb a `from=settings-integrations` URL marker through the OPDS browser so both manual close and auto-close-on-failure (preserved as `router.back()` for transient failures, paired with a new `stashOPDSReturnTarget` helper) return the user to Settings -> Integrations -> OPDS Catalogs sub-page rather than the dialog's top level. Backed by new `requestedSubPage` deep-link store field. Skip the OPDS catalog passphrase prompt when credentials sync is disabled -- `replicaPublish` already drops encrypted fields at the wire, so prompting was both pointless and confusing. Fix `SettingsDialog` calling `setRequestedPanel(null)` inside a `useState` lazy initializer (zustand setter during render -> React warning); move the clear into a one-shot `useEffect`. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * ui/ux: opt Settings into OverlayScrollbars + caseless typography polish Add an opt-in `useOverlayScroll` prop to `<Dialog>` that swaps the body's native `overflow-y-auto` for `<OverlayScrollbarsComponent>` (autohide, click-scroll, no native overlaid bars). SettingsDialog flips it on so the long Layout / Color panels keep a visible, theme-aware scroll track on Android / iOS webviews where native scrollbars auto-hide entirely. Other short-modal callers stay on the native scrollbar. Drop the `uppercase tracking-wider` SectionTitle styling for caseless scripts and pair it with body-weight `font-medium` instead — those typographic effects are no-ops on Han / Hangul / Devanagari / Thai etc., so a plain medium-weight body-size title reads more correctly than a shrunken pseudo-uppercase one. SettingsRow / NavigationRow primary labels follow the same rule (drop `font-medium` in caseless locales since the inherited body weight already carries; CJK fonts bold poorly at body size). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * ui/ux: SettingLabel primitive + KOSyncForm select polish + Tips alignment Add `<SettingLabel>` primitive — caseless-aware row/field label that pairs with `<SectionTitle>` (groups) for per-item labels. Cased scripts get `font-medium`; caseless scripts (CJK / Arabic / Hebrew / Indic / Thai / Tibetan) drop the weight since Han / Hangul / Devanagari etc. bold poorly at body size. No font-size class so it inherits the `.settings-content` 14/16 cascade. Routed through `SettingsRow`, `NavigationRow`, and the ~12 ad-hoc inline `text-sm font-medium` callsites in AIPanel / FontPanel / ColorPanel / IntegrationsPanel / KOSync / Readwise / Hardcover forms. Refactor KOSyncForm's Sync Strategy + Checksum Method rows onto the shared `<SettingsSelect>` primitive — the inline 17-line div/select/ MdArrowDropDown chassis becomes a single SettingsSelect call with an options array. Drops the unused MdArrowDropDown import and ~25 lines. Fix Tips list-item alignment: callers traditionally pass `<li>` elements (semantic) but the primitive was double-wrapping into `<li><span><li>...</li></span></li>` — invalid HTML, and the inner `<li>`'s `display: list-item` broke line-wrap alignment on multi-line items. Unwrap caller `<li>` to its content; add `flex-1` on the text span so wrapped lines align under the first line instead of falling back to the bullet column. Bullet container switches to `h-[1.4em]` so it tracks the text line-height and pins to the first line's optical center via `items-center` regardless of how much the content wraps. DESIGN.md §5 typography updated to point primary-label callers at `<SettingLabel>`. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Project Overview
Readest is a cross-platform ebook reader built as a Next.js 16 + Tauri v2 hybrid app. It's part of a pnpm monorepo at /apps/readest-app/. The app runs on web (CloudFlare Workers), desktop (macOS/Windows/Linux via Tauri), and mobile (iOS/Android via Tauri).
Common Commands
# Development
pnpm dev-web # Web-only dev server (no Rust compilation needed)
pnpm tauri dev # Desktop dev with Tauri (compiles Rust backend)
# Building
pnpm build # Build Next.js for Tauri
pnpm build-web # Build Next.js for web deployment
# Testing (see [docs/testing.md](docs/testing.md) for full details)
pnpm test # Unit tests (vitest + jsdom)
pnpm test -- src/__tests__/utils/misc.test.ts # Run a single test file
pnpm test -- --watch # Watch mode
pnpm test:browser # Browser tests (Chromium via Playwright)
pnpm tauri:dev:test # Start Tauri app with webdriver
pnpm test:tauri # Run Tauri integration tests
# Linting & Formatting
pnpm lint # Biome (linter) + tsgo (type check)
pnpm format # Prettier (runs from monorepo root)
pnpm format:check # Check formatting without writing
# Rust
pnpm fmt:check # Check formatting Rust code (src-tauri)
pnpm clippy:check # Lint Rust code (src-tauri)
Source Layout
| Directory | Purpose |
|---|---|
src/app/ |
Next.js App Router pages and API routes |
src/components/ |
React components (reader, settings, library, assistant, etc.) |
src/services/ |
Business logic: TTS, translators, OPDS, sync, AI, metadata |
src/store/ |
Zustand state stores |
src/hooks/ |
Custom React hooks |
src/libs/ |
Document loaders, payment, storage, sync |
src/utils/ |
Pure utility functions |
src/types/ |
TypeScript type definitions |
src/context/ |
React Context providers (Auth, Env, Sync, etc.) |
src/workers/ |
Web Workers for background tasks |
src-tauri/ |
Rust backend: Tauri plugins, platform-specific code |
Path Aliases (tsconfig)
@/*→./src/*@/components/ui/*→./src/components/primitives/*
Rust Backend (src-tauri/)
Platform-specific code lives in src-tauri/src/{macos,windows,android,ios}/. Custom Tauri plugins are in src-tauri/plugins/.
Git Worktrees
Always use pnpm worktree:new <branch-name|pr-number> to create worktrees. Never use git worktree add directly — the script handles submodule initialization (simplecc WASM, foliate-js), dependency installation, .env copying, vendor assets, and Tauri gen symlinks that are required for lint and tests to pass.
pnpm worktree:new feat/my-feature # New branch from origin/main
pnpm worktree:new 3837 # Checkout PR #3837 with push access to fork
Project Rules
Rules are in .claude/rules/: test-first, typescript, verification.
i18n
See docs/i18n.md for the key-as-content translation approach, stubTranslation usage in non-React modules, and extraction workflow.
Safe Area Insets
See docs/safe-area-insets.md for rules on handling top/bottom insets for UI elements near screen edges.
Design System
UI/UX rules — surface tiers, action vocabulary, settings primitives (BoxedList, SettingsRow, SettingsSwitchRow, SettingsSelect, NavigationRow, Tips, etc.), boxed-list anatomy, RTL conventions, e-ink overlay, and anti-patterns — live in DESIGN.md. Codify recurring decisions there so they persist for the team and future contributors. Reach for the primitives in src/components/settings/primitives/ instead of inlining chassis classes.
E-ink mode
Every new UI widget must look right under [data-eink='true']. E-ink screens have no shadows, no gradients, slow refresh, and need crisp 1px borders for delineation. The conventions live in src/styles/globals.css — reuse the existing classes instead of inventing new ones:
- Surfaces / inputs — add
eink-bordered. In eink mode it swaps tobg-base-100+ 1pxbase-contentborder. Use it on inputs, custom button backgrounds, ghost-styled cancel buttons, and any container that needs a visible boundary. - Primary action buttons — add
btn-primary(alongside whatever Tailwind classes you use for color themes). The[data-eink] .btn-primaryrule inverts tobase-contentbg +base-100text so the primary CTA stays distinct from secondary actions. .modal-boxpicks up no-shadow + 1px border automatically; dialogs that use it don't need additions.- Don't rely on color/shadow alone for hierarchy. Two same-tone buttons differ only by hover on color themes, and hover doesn't exist on e-ink touchscreens. Pair a borderless ghost (cancel) with a solid CTA (submit) so eink can invert one without flattening the difference.
When in doubt, toggle E-ink in Settings → Misc and check. The rules in globals.css cover most cases automatically, but composite components (custom buttons, layered cards) often need eink-bordered on the right element to stay legible.
Available gstack skills:
/plan-ceo-review— CEO/founder-mode plan review/plan-eng-review— Eng manager-mode plan review/plan-design-review— Designer's eye review of a live site/design-consultation— Design system consultation/review— Pre-landing PR review/ship— Ship workflow (merge, test, review, bump, PR)/browse— Fast headless browser for QA and site interaction/qa— QA test and fix bugs/qa-only— QA report only (no fixes)/qa-design-review— Designer's eye QA with fixes/setup-browser-cookies— Import cookies for authenticated testing/retro— Weekly engineering retrospective/document-release— Post-ship documentation update
If gstack skills aren't working, run cd .claude/skills/gstack && ./setup to build the binary and register skills.