"Terribly high CPU usage, the MacBook gets really hot" - a fanless MacBook
Air on a 144Hz screen. Measured on that machine with headed engines
(process CPU plus the per-process GPU time macOS keeps): an idle Aero
library cost LibreWolf ~110% CPU and ~230ms/s of GPU, the study feed ~130%,
Chromium up to ~57% CPU and ~350ms/s of GPU, Safari ~220-250ms/s of
WindowServer GPU. Priced one by one:
- the gradient mask on .ice-floats re-rendered the animated layer offscreen
on every frame (~75 points of Gecko CPU). The floats now rise through a
plain rectangular band clear of the header, the bottom chrome and the
rail, and fade in and out inside it, so the clip never cuts a visible one;
- the overlay grain forced a backdrop readback per frame for a texture that
measured a mean <=0.11/255 difference: removed;
- the invisible blob drift made every frame a full-screen redraw: the blobs
are painted once;
- static glass (answer tiles, feedback panel, chips, inputs, dropzones,
lists, segmented controls, Aero hint chips) re-blurred the moving scene
every frame: only floating glass blurs now, and Aero's baked chat chrome
drops a live blur that never showed under the bake;
- the scene also parks while the window has no focus and under any dialog
or sheet scrim (.scene-pause); the loading icon is a compositor-run CSS
animation instead of a framer-motion main-thread loop.
After, focused and animating: LibreWolf library 109% -> 33% CPU, study
134% -> 34%, chat 130% -> 42%; Chromium GPU 2.5-4.4x lower with 7-22 points
less CPU; Safari's WindowServer GPU -20-26% in Aero, about half in dark.
Unfocused or under a sheet: nothing. bubbles-test sweeps every float through
41 phases against the band and pins the parking and the cost contract;
tests/heat-probe.mjs (macOS) repeats the measurement; the suites find
Playwright's Chromium on macOS.
All 15 suites pass, lint clean, the contrast scan lost a finding. Version
0.6.7, SW v89.
Co-authored-by: Cursor <cursoragent@cursor.com>
1. Bugs fixed:
- Backup schema now accepts theme: "aero" so backups exported under
Frutiger Aero pass parseBackup on import, and applyImport in "replace"
mode replaces SRS schedules, answer history, and chats instead of
merging into existing SRS or skipping empty arrays.
- Typed FillBlank cards bind the input value to chosen ?? value instead
of chosen ?? "", and normalise() preserves Unicode letters (\p{L}\p{N})
when grading non-ASCII answers.
- OpenAI-compatible vision calls (contentFor in lib/openai-compat.ts)
prefix data:image/jpeg;base64, when routes pass stripped base64.
- Streaming calls (ollamaChatStream, providerChatStream) keep their
AbortController active across the entire body stream and API routes
forward request.signal so stopping a chat or cancelling a run aborts
the upstream request immediately.
- HomeworkCard uses homeworkModeLabelKey so "check" records display the
Checked label instead of Step-by-step guide.
- Desktop dropzones on /create and /homework accept dropped documents as
well as images.
- LibraryScreen filters reported questions out of its due and mistake
counts to match ReviewClient.
- Clearing a provider key resets generation if it pointed at that
provider; chat conversations persist and restore provider; ModelPicker
keys items by provider:name.
- RouteTransition no longer mutates module-level lastPath during render.
- Service worker asset handler falls back to Response.error() when an
uncached asset fetch fails offline.
- Confetti and .ice-orb / .ice-bubble respect the in-app reduce-motion
toggle.
2. Performance & cleanup:
- Deduplicate window storage listeners across all six localStorage
stores (one listener while subscribed instead of N^2 notifications).
- Use todayAnswerCount in LibraryScreen and pass sorted folders to
DeckCard.
- Memoize MessageRow with stable callbacks in ChatScreen and compute
last message IDs in a single pass.
- Close ImageBitmap after drawing in lib/image.ts and destroy pdf.js
documents in finally in lib/documents.ts.
- Avoid re-parsing serialized sync payloads in POST /api/sync.
- Deduplicate copyText (lib/share.ts -> lib/clipboard.ts), chatMessageId,
describeExtraction, ALL_FOLDERS, useIsPhone, and remove unused helpers
and boilerplate public/*.svg files.
Version 0.5.8, SW -> freezmo-v80.
Buttons: the recipe's thin veils let btn-secondary/btn-ghost/glass-pill
blend into the grass and sky - they now carry a stronger pale-glass veil
(the Ask-pill look) over the blurred scene, ghosts plus a rim and
full-contrast text. Homework make/check results gained the same red "!"
report control as the feeds and the guide (a synthetic short-answer
activity maps into the report flow; pinned in phase3).
Reduced motion: the manual toggle only fed framer's MotionConfig, which
strips transform animations - while components branched on the OS-only
useReducedMotion - so translucent sheets still spring-faded their opacity
in over the page (the "ugly visual glitch with the settings panel"). All
16 components now read useAppReducedMotion() (OS or toggle), and the
settings sheet/scrim and the library's phone sheet go instant. Verified
frame by frame: opacity 1.00 from the first frame.
Contrast 0 findings, axe clean; mobile 126/126, chat 102/102, providers
20/20, wizard 95/95, phase3 31/31, bubbles 34/34, i18n 13/13, native
33/33. Version 0.5.4, SW -> freezmo-v76.
- Aero: blue gradients back on the active segment and every primary
(Review due, the card's Study button, the composer's send button); a
frosted backing behind the page heading and the All decks label; a
bottom-weighted rail tint; chat header/composer/welcome panels; calmer
orbs; stronger card veil + a stronger blur bake.
- Dark/Light: a dedicated --track token makes progress bars read (the
first attempt shifted --surface-sunken and the pixel scan caught the
sheet-contrast regression); brighter dark secondary text; darker light
segmented labels and difficulty tints; stronger light card border and
shadow.
- Chat UI: friendly model chip ("Gemma 4 31B") with the raw name in a
tooltip, larger chips, plain centered disclaimer, vertically centered
welcome panel, distinct chat-plus icon for new chat.
- Chat models: every chat-capable model from the server's /api/tags is
selectable (favourites first, search field when long, live-list
validation in the route); default CHAT_MODEL_DEFAULT or gemma4:31b.
- Reduce motion: Settings toggle (default off) that parks the scene,
collapses CSS animations and drives framer-motion's calm mode.
- Folders hint, "New" badge on fresh decks.
Contrast: 0 findings, axe clean, mobile 126/126, chat 102/102, wizard
95/95, regression 44/44, i18n 13/13, native 33/33.
Version 0.4.6, SW -> freezmo-v71.
The Ask button (and the two phone icon pills sharing its styling) was a
hand-styled bg-[var(--surface-strong)] pill that never picked up the
frosted recipe - it showed the sharp wallpaper through a flat tint while
everything around it showed the blurred one. It carries a glass-pill
class and is part of the same recipe now.
Hover feedback: a transform or filter on a pane with a viewport-fixed
backdrop re-anchors the glass, so the deck card's hover lift made the
card flash a wrong crop of the wallpaper (and filter: brightness() on
the buttons, plus the mobile :active scale foundation, would have done
the same). Aero's feedback no longer moves or filters the glass: the
pane lights up with an inner glow, a white rim and a deeper shadow over
170ms, and the pressed state shades inward.
Contrast: 0 below-minimum findings, 0 axe violations. Version 0.3.3,
SW -> freezmo-v64.
Frutiger Aero (Settings -> Theme): a third theme, not a dark/light variant.
A sky gradient with a strip of grass, the glacier blobs become clouds, the
orbs soap bubbles, glass gets the classic horizon gloss and the buttons a
glossy aqua. The light/dark toggles (header, rail, chat header) hide while it
is on and the picker says why; the pre-paint script applies the class before
first paint and the PWA status bar follows (#3fa3e0). Its muted/frost text is
darker than Light's because those labels sit directly on the sky.
Contrast, measured on real pixels (tests/contrast.mjs, now covering aero):
- The light settings sheet was translucent over a dark scrim, so its muted
text measured ~2.8:1. Sheets and dialogs now use --glass-sheet-bg (a more
opaque surface), and Light's --text-muted is a touch darker.
- Result: 0 below-minimum findings and 0 axe violations across every screen,
all three themes, phone and desktop.
Also: the suites now seed the cookie notice as already dismissed (they run as
a returning user); the regression suite opts out to test the notice itself —
the previous deploy failed its gate because the notice blocked a chat chip
click. The notice also hides during immersive sessions (overlay-open), so it
can never cover a study feed.
Version 0.1.8, SW -> freezmo-v54.
- axe is clean across every screen in both themes, phone and desktop. Fixed:
the hidden file inputs (aria-hidden + tabIndex -1 — they are opened by
labelled buttons, so they should not be in the accessibility tree), the
heading order (deck/homework/smart-review cards are h2 under the page h1;
LearningSection takes a level so it stays h2 on the library and h3 inside
the settings dialog) and landmarks around the study and review feeds.
- tests/contrast.mjs (new diagnostic): samples rendered pixels, because axe
cannot judge text on blurred glass — it reports those nodes as incomplete.
It skips disabled controls (1.4.3 exempts them) and content behind an open
sheet. Result: no below-minimum text on any scanned screen.
- The report control exists in the homework guide too: under each "Try it
yourself" exercise, labelled "Report exercise", without a skip (there is no
queue to skip). lib/question-reports now takes deckId/deckTitle directly.
- The rail's two creation actions are buttons now (.nav-action) rather than
quiet nav rows — once the library is full they were the only way to start
something on desktop and read as just more navigation. "Make my homework"
is "New homework" wherever it is an action (rail, empty state, share
chooser, manifest shortcut); the page title and mode switch keep their
wording.
Version 0.1.6 (three task bumps), SW -> freezmo-v52.
- "Check my work" now takes photos and documents of the attempt: documents
are read in the browser into text, photos go to /api/homework as
solutionImages and are transcribed by the vision model before the check
("Reading your solution..."). The finished attempt comes back in
meta.solutionText and is stored as the record's attempt, so "Redo"
re-checks the same work without keeping the files.
- Deleting a deck now drops its due schedules and mistakes from the library's
smart review immediately (the counts resolve against the live deck list);
Undo brings them back, because the learning data itself is never erased.
- The phone override for the glacier blobs was still at 0.1/0.2: it is now a
quarter of the original value there too (0.025/0.05), matching the desktop.
- License: GPL-3.0-only (LICENSE, package.json, README section).
Tests: phase-3 photos-only API + desktop attachment checks (28/28), review
suite deck-delete checks (18/18), i18n/mobile/phase-2 green. README:
decisions 57-58. SW -> freezmo-v45.
Entry points (no sixth tab): Ask in the Library header (desktop button,
phone icon), Ask about this deck in the deck menu, Ask a question on
study/homework results (compact result travels as context), and a Chat
row in the desktop sidebar. Phones get a full-screen route with back +
New chat; the tab bar steps aside.
- Client-side retrieval: chunk scoped decks (~800 tokens), BM25 against
the question + recent turns, top chunks under ~7k tokens, each
labelled with deck + section. Notes come from the deck's stored
sourceText (already kept for Regenerate); decks without it fall back
to generated content and the UI says so.
- Stateless server: /api/chat validates against the CHAT_MODELS
allowlist, trims the history to ~6k tokens, caps context at ~9k and
streams token/thinking/done/error NDJSON. /api/chat/extract reduces
attachments to text through the existing vision step.
- UI: user bubbles + full-width assistant text, streaming with stop,
auto-scroll that pauses with a jump-to-bottom button, safe markdown
(React nodes, no HTML injection; KaTeX dynamically imported only when
a message has math), Thinking row for reasoning, copy/regenerate/
edit-and-resend, model + context pickers (last model remembered),
composer with visualViewport keyboard handling, safe-area, 16px
textarea, Enter-to-send on desktop.
- Usage-limit failures keep the draft and show the shared message with
Settings/Ollama actions; stopping maps the reader abort to a clean
stopped state; offline disables sending with a reason.
- Settings: Keep notes text for chat toggle; deck menu: Delete notes
text. RATE_LIMIT_CHAT + CHAT_MODELS in .env.example and README.
- Tests: chat suite (63 checks, stub Ollama) wired into run-all.
Full set: 12/12 suites, 487 checks. SW -> freezmo-v32.
Also: tests/model-compare.mjs (diagnostic) benchmarks two models on the
same notes (latency, repair rounds, activity types) so the gpt-oss vs
gemma default can be decided on numbers; defaults unchanged.
Reported: tapping Review due could sit for many seconds with no loading
screen. The flow itself is local and fast (counts are hydrated on the
library; <1.5s even at 6x CPU throttle with 3,000 answers), so the
visible fault was missing feedback: /review is a dynamic route and
until its payload arrived nothing on screen changed.
- LinkLoadingScreen: the review card links render a full-screen
loading screen from the link's own useLinkStatus pending state, the
instant the tap happens (measured 58 ms with the route request held
open). The links also prefetch their payload.
- Route loading boundaries (loading.tsx) for /review, /stats and
/exam, sharing a RouteLoading screen (app icon + spinner +
localized message); ReviewClient's bare skeleton replaced with it.
- Health probes: per-key 30s cache + in-flight sharing in use-health.ts
(every page mounts its own gate; a session now fires one probe
instead of one per navigation). Manual re-check still forces.
- Czech fix: exam heading 'Zkouškové režim' -> 'Zkouškový režim'.
Verified by the rebuilt suites (the /tmp harness was wiped overnight):
review-loading 15/15 (stalled-request loading screen at 58 ms, session
arrival after release, fast normal path, mistakes path, end-to-end
grading, probe cache) and navigation 78/78 (tab bar, labels 360/390
EN/CS, routing, deep links, wizard loading lock). Lint + build clean.
SW freezmo-v30.
Drawer removed (phones only; desktop rail untouched)
- MobileSidebar, sidebarOpen/useSidebarOpen, MenuIcon and the drawer's
back-gesture layer are gone; the shared nav content now serves only
the desktop rail (dead mobile branches deleted). No drawer-specific
CSS existed; the three drawer strings (header.openMenu,
sidebar.closeMenu, common.menu) and library.importAria are removed.
- The header drops the hamburger: logo + name on the left, the single
theme chip on the right.
Five-tab bottom bar
- Library / Progress / New deck (prominent centre +) / Exam / Settings,
in that order; Progress and Exam reuse the existing /stats and /exam
screens, Settings keeps opening the dialog. Sliding pill, icon bounce,
press feedback, re-tap-to-top and safe-area padding kept; every item
is >=44px (72px wide at 360px).
- New short tab.* keys (EN + CS) so all five labels stay on one line at
360px — 'Zkouškový režim' became 'Zkouška'. No ellipsis anywhere.
- The bar is mounted once in AppHeader so library, progress, exam and
share get it; the wizards keep their own bottom action bar and the
tab bar steps aside there, exactly as before.
Re-homed drawer destinations
- Smart Review card loses the Exam link (it is a tab now); Review due
and Mistakes stay.
- New deck screen (and /homework) get a Study deck / Make my homework
segmented switch; the library's homework empty-state button stays.
- The phone import icon becomes a ... button opening a sheet with
Import JSON and New folder (back-gesture and Escape close it); folder
chips still appear only once at least one folder exists, and folder
creation stays in the New deck options step.
Verified: mobile suite 134 checks (no hamburger/drawer, tab order and
44px targets, label matrix at 360/390 x EN/CS x dark/light x reduced
motion, per-tab routing, deep links, Back from every tab, the ... sheet
with folder creation) plus regression 74/74, wizard 83/83, declutter
116/116, animation 8/8, native 35/35, i18n 25/25, phase1 38/38, phase2
43/43, phase3 20/20, freeze-loading 6/6. Key parity 740/740. Lint +
build clean. SW freezmo-v28.
Answer history and schedules
- Every answer is recorded (deck, activity, topic, correct/wrong, time)
in a versioned IndexedDB log (freezmo-learning v1, stores answers +
srs), mirrored in memory for synchronous React reads and capped at
20k answers (oldest pruned). StudyFeed records as it grades.
- Light SM-2 schedule per activity: 1 day, 3 days, then interval x
ease; wrong answers return in ten minutes with the ease nudged down.
Review, mistakes, stats
- Library 'Smart review' card: due count, mistakes count (latest
answer wrong — clears itself when answered correctly), today's goal
progress. Review sessions freeze their item list at start.
- New /review (due across decks, ?mistakes=1 global or ?deck= per
deck) built on a shared SessionFeed with the study feed's snap/keyboard
mechanics, wake lock and a results slide.
- New /stats: day streak, five-week calendar, accuracy per subject and
per deck, weakest topics (>=3 answers), daily-goal progress.
- Daily goal configurable in Settings (10/20/30/50).
Exam mode
- New /exam: pick decks, question count, optional timer; no hints
(a NoHints context hides hint rows and the self-check escape);
results with score, per-deck and per-topic breakdown; wrong answers
land in the mistakes set through the normal history.
Reminders (conditional)
- VAPID-gated: GET/POST/DELETE /api/push and POST /api/push/test with
the standard route pattern, RATE_LIMIT_PUSH, zod, auth before body.
Subscriptions stored server-side as endpoint + keys only (PUSH_DIR).
UI hidden entirely without keys; iOS install note; service worker
push/notificationclick handlers; scripts/send-reminders.mjs for a
cron/systemd timer; web-push added as the one server dependency.
Verified: new phase-2 suite 42/42 (history/SRS shapes from a real study
run, mistakes clearing, review session, stats math, exam timer and
breakdowns, VAPID-less hidden state plus the configured
subscribe/validate/test/delete path against a second instance) plus
regression 74/74, mobile 52/52, wizard 80/80, declutter 116/116,
animation 8/8, native 35/35, phase1 38/38, i18n 25/25. Key parity
709/709. Lint + build clean. SW freezmo-v26.
Safety net and errors, mobile-first, desktop unchanged in behaviour.
Backup and persistence
- Settings -> Data & backup: 'Export all data' writes one zod-validated
JSON (decks, folders, homework, progress, safe settings; the API key
is not part of the shape and never appears in the file).
- 'Import backup' validates, shows a preview with added/replaced
counts and offers merge or replace; invalid files get a friendly
error. Storage persistence (navigator.storage.persist) is shown and
requestable, with the result reported.
- A dismissible nudge appears after 5 new decks or 14 days without a
backup and stays snoozed for 14 days.
Opt-in encrypted sync (off by default)
- New lib/sync.ts: PBKDF2-SHA256 (310k) -> AES-GCM-256, derived key
kept as a non-extractable CryptoKey in IndexedDB (lib/sync-key.ts);
the passphrase and key never leave the browser.
- New POST/GET/DELETE /api/sync following the route pattern (locale,
cross-origin guard, body cap, rate limit RATE_LIMIT_SYNC, auth
before body parsing, zod validation). One atomic JSON file per
random 128-bit sync ID under SYNC_DIR; server-stamped updatedAt is
the conflict clock; SYNC_MAX_BYTES and SYNC_TOTAL_BYTES enforced
(413 / 507). The server only ever sees an opaque envelope.
- Settings -> Sync: enable with a passphrase, copy the sync ID, sync
now, last-synced time, explicit keep-this-device / use-synced-copy
conflict choice, join from another device (ID + passphrase, wrong
passphrase rejected), unlock after the key is gone, delete the
synced copy (works even on a locked device). Every data store marks
sync dirty on write; pulled payloads are applied without marking
dirty again.
Monthly usage vs short-term throttling
- lib/ollama.ts classifies the real 429 body (monthly/quota/upgrade
vs burst) into new 'usage_limit' and 'throttled' kinds, mapped in
every route and in the health probe.
- The client renders the same localized message in the deck flow,
homework, grading and the Settings banner: the required
upgrade/new-key copy with 'Open Settings' (jumps to and focuses the
key field) and 'Open Ollama'. Input and wizard drafts are kept so
Retry works right after swapping the key. No model fallback.
Verified: new phase-1 suite 38/38 (backup content + no key, import
preview/merge/replace, junk file, persistence row, nudge + snooze,
sync enable/upload/opaque blob/push/join/wrong passphrase/delete,
server validation 400/401, usage-limit copy and key focus, and the
real route mapping against a stub Ollama for both 429 variants) plus
regression 74/74, mobile 52/52, wizard 80/80, declutter 116/116,
animation 8/8, native 35/35, i18n 25/25. Key parity 638/638. Lint +
build clean. SW freezmo-v25.
Mobile only (<=639px / coarse pointers); desktop keeps its behaviour.
Foundation
- lib/motion.ts owns the spring presets (snappy/gentle/sheet), durations,
easings and variants (screens, tabs, wizard steps, list stagger).
- Native-feel CSS: press feedback scales every button, card, chip, tab,
row and summary to 0.96 with a spring-like cubic-bezier on transform
(scoped to phones/coarse pointers), tap-highlight off, touch-action
manipulation, chrome text non-selectable, reduced motion drops it.
- App shell fades in once on launch; the study feed fades in on phones.
Applied
- Tab bar: sliding active pill (shared layoutId) + icon bounce.
- Study Decks/Homework, language toggle, difficulty and size pickers:
the same gliding highlight, gated so desktop keeps the old styling.
- Route content enters direction-aware (deeper = from the right, back =
from the left, same-depth = crossfade) via RouteTransition on the
library/create/homework content columns; library tab switches
crossfade; wizard steps slide forward/backward (reduced motion safe).
- Library: cards fade up in a capped stagger on first load, glide with
layout animations and shrink away on delete (AnimatePresence).
- Study feed: correct feedback pulses, wrong shakes, the progress bar
settles with a spring curve, score and XP count up on the results.
- Settings sheet uses the sheet spring; the drawer now follows the
finger and closes on release velocity, like the sheet.
- Generation progress: the stage message fades/slides between stages;
the icon keeps its gentle wobble; the feed fades in on hand-off.
Skipped, on purpose: LazyMotion (the sliding highlights need layout
animations = domMax, same features the current import already has);
route exit animations (the App Router unmounts the outgoing page —
exits are handled by in-page AnimatePresence); replacing the study
feed's native scroll-snap with finger-follow drag (would fight the
platform scroller); finger-follow height animation for native <details>
expanders.
Verified: animation suite 8/8 (reduced motion + 4x-CPU-throttled trace:
no long tasks, CLS 0.0000), regression 74/74, mobile 52/52, declutter
116/116, i18n 25/25. Lint + build clean. SW freezmo-v21.
Phones only (<=639px); desktop markup is untouched.
- New deck is a 3-step flow: progress (1/3 + bar) and a fixed Back/Next
bar above the tab bar. Step 1 = Add photos or files / Camera / Paste
text instead (no drop zone or paste copy on touch), step 2 = folder,
difficulty and count with defaults plus one collapsed focus/notes row,
step 3 = one summary line (photos/docs/text · difficulty · count ·
folder) with Freeze. Going Back keeps every input; step transitions
respect prefers-reduced-motion.
- Make my homework is a 2-step flow sharing the same pattern; tapping a
mode card starts it (no separate CTA on phones), with a short preview
of the assignment on step 2. The hero is now 'Make my homework' /
'Udělej mi úkol' everywhere ('Solve your homework' is gone) and the
intro is one line.
- Library: stats line removed, folder row and 'Unorganized' heading
hidden until folders exist (New folder lives in the drawer), Import is
a small icon button beside the tabs. Deck and homework cards are
compact on phones: title, one meta line (activities · difficulty ·
best), a one-line description that expands on tap, the whole card
tappable and a small Study/Open pill instead of the full-width button.
- Settings sheet on phones: no .env.local subtitle; Language stays first;
one Connection card (status dot + 'Connected · 2 models ready', key
field with the eye inside, Save only when edited, auto re-check on
save, refresh icon instead of Test connection); privacy one-liner with
a More expander (daemon tip inside); raw health rows behind one
collapsed Details list; Remove key as a small danger button at the very
bottom (same confirmation).
- Decorative orbs on phones moved further off the screen edges so they
never glow under cards or primary buttons.
- Shared markup for folder/difficulty/count and mode cards keeps one
source of state; new lib/use-phone.ts gates the layouts.
Verified: new declutter suite 116/116 (360 + 390, EN + CS, photo + PDF +
pasted text, Back keeps input, summaries, settings flow), regression
74/74, mobile 52/52, i18n 25/25. Lint + build clean. SW freezmo-v20.
Header & action bar
- Import JSON no longer disappears on the Homework tab: it sits directly
under the "Your icebox" header/subtitle, above the tab switcher, on every
tab — so switching pools no longer shifts the layout or hides actions. It
is one secondary button at all sizes now, not a quiet link when empty.
- The decks-only "Homework Solver" header action is gone; the homework tab's
empty-state CTA and the drawer cover starting a new solve.
Empty states
- Dropped the "Using your own Ollama models — check the connection in
Settings." line (and its two dictionary keys) everywhere.
- Both tabs share one structure: ice icon -> heading -> short description ->
primary CTA button, starting at the same height:
Study Decks: "No decks yet" -> "Freeze a page of notes into flashcards
and quizzes." -> "Create study deck"
Homework: "No homework yet" -> "Solved assignments and step-by-step
guides show up here." -> "Solve homework"
- CTA labels read as actions on the standardized nouns; removed the now
unused actionStudyDeck/actionHomework keys.
Tabs
- Link segments are 44px tall at every breakpoint (min-height in the base
.segmented > a rule).
Service worker: freezmo-v11.
Verified: library-consistency suite 49/49 (Import visible with a fixed
position on both tabs, no Ollama text, empty states at the same y, primary
ice CTA buttons >=44px, deep links, deletion, redirects, desktop, 360px, axe
en+cs light+dark), mobile 51/51, i18n 27/27, desktop regression 74/74.
Lint + build clean.
Library ("Your icebox")
- Two tabs, never mixed: Study Decks (the folder + card library) and Homework
(saved solutions and step-by-step guides). The active tab lives in the URL
(/?tab=homework), so the sections are linkable and survive a reload.
- Decks tab keeps Import, the folder bar, stats and its own empty state — now
a single decks-only CTA.
- Homework tab lists saved results as cards (mode icon, date, step count,
preview) with Open and delete-with-confirm; its empty state has its own CTA
("Homework Solver") that opens the solver directly. Opening a card
deep-links to /homework?open=<id>, which the screen opens on arrival.
- .segmented now also styles link segments (same control as settings).
/create
- The redundant "Study Deck | Homework Solver" toggle is gone: /create is the
deck uploader only, and the bottom bar's + goes straight to it. Homework has
its own screen, reached from the library tab, the drawer and CTAs.
Copy
- New keys (en + cs): tabDecks, tabHomework, homeworkHeroTitle, plus homework
empty-state/open/step-count strings. The homework hero is now "Solve your
homework" / "Vyřeš svůj úkol" — no study-deck text in the homework flow.
- Removed the now-unused ModeSwitch component and homework.title key.
Service worker: freezmo-v10.
Verified: library-tabs suite 37/37 (tab switching, context empty states,
deep-link opening, deletion, no switch on /create, heroes, redirects, desktop
grid, 360px + 44px targets, axe contrast en+cs light+dark), mobile 49/49,
i18n 27/27, desktop regression 74/74. Lint + build clean.
Terminology (lib/i18n-dict.ts)
- One name per mode everywhere: "Study Deck" / "Studijní balíček" and
"Homework Solver" / "Řešitel úkolů". The library empty-state cards and the
/create switcher now read the same, so the choice no longer changes name
between screens.
Deep links
- Library quick actions carry the mode: /create?mode=deck and
/homework?mode=homework.
- Both pages canonicalize: /create?mode=homework redirects to the homework
flow and /homework?mode=deck redirects to /create, so a mode link always
opens that mode directly.
/create
- The two bulky square cards (106px tall, wrapping/clipping "Study Deck &
Qu…" on phones) are replaced by a compact segmented control (52px) placed
directly above "1. Add your notes": ice pill, snowflake/sparkles icons,
44px segments and one-line labels at 360px. The pill slides to the chosen
segment and the route follows ~190ms later, so toggling reads as one smooth
transition (immediate under prefers-reduced-motion).
Service worker: freezmo-v9.
Verified: mode-switch suite 26/26 (deep links, cross-mode redirects, 52px
control, 44px segments, no clipping/wrapping at 360px, "1. Add your notes" at
y=394 of 740 with the upload controls above the fold, pill slide, axe contrast,
en+cs, phone+desktop), mobile 49/49, i18n 27/27, desktop regression 73/73.
Lint + build clean.
Library empty state ("Your icebox")
- Replace the single "Make your first deck" button with two quick-action
cards: "Create interactive test" (primary, ice-gradient icon + subtle
accent border) and "Help me with my homework" (glass card, sparkles
icon). Stacked on phones, side by side from 640px up; both >=44px tall.
/create
- Replace the "Got homework instead of notes?" banner with a two-card mode
switcher above "1. Add your notes": "Study Deck & Quizzes" (the current
view — aria-current, accent tint, ice icon) and "Homework Solver" (a
shortcut to /homework). Icon-on-top tiles on phones, inline rows from
640px up; glass tokens + backdrop blur in both themes.
Strings
- New keys in both dictionaries: emptyStateCreateDeck, emptyStateHomework,
actionStudyDeck, actionHomework. Drop the now-unused homework.entry and
library.makeFirst keys.
Drive-by AA fix (light mode, /create only)
- The "New folder" dashed button and the difficulty blurbs move from
frost-500 to frost-600 (4.0:1 -> ~6:1). Dark mode is unchanged.
Service worker: freezmo-v8.
Verified: redesign suite 32/32 (stacked/side-by-side layouts, 360/390/1280,
dark+light, en+cs, >=44px targets, both cards navigate, no overflow, axe
contrast), mobile 49/49, i18n 27/27, desktop regression 73/73. Lint + build
clean.
Phones (<=639px) only for layout/gestures; the theme-level fixes apply
everywhere, as they are token/design changes.
Settings sheet
- Swipe-to-dismiss reusing the InstallSheet gesture: the sheet follows the
finger, closes past ~90px or on a fast flick, snaps back otherwise. Drag
starts only from the handle/header and only while the body is scrolled to
the top. Backdrop tap still closes.
- Fixed header + scrollable body: pb-safe + spacer, so nothing is clipped;
a scroll cue (chevron) fades in while more content is below and out at
the end.
- Show/Save stack under the field at 44px on phones; close, Test connection
and Remove key are 44px too. Remove key is now a rose destructive action
with a confirmation that the full-screen key setup comes back.
- API key note split into a short privacy line plus a collapsible
'Using the local daemon?' tip (OLLAMA_AUTH=local / .env.local / signin).
- Fixed the missing space in the English tip ('ollama signin instead.').
- Health: kept the auto-check and banner; added a loading row and a
'Checked just now' / 'Checked at HH:MM' freshness label (also for errors).
Ice scene / readability
- Verified the orbs were never above content (fixed z-index:-1 layer,
pointer-events:none); they were just shining through the glass. Phones get
lower blob/orb opacity and orbs tucked to the edges; the bottom-right orb
is moved out from under the tab bar and the tab bar paints a more opaque
surface so its labels hold contrast.
Contrast / themes
- Dark --text-subtle raised to #9db1d0 (8.6:1 page, 7.2:1 glass); helper
text now uses the tokens.
- Disabled buttons are a visible muted chip (.btn-disabled) instead of a
40%-opacity ghost.
- One ice primary gradient in both themes; danger/success now actually show
their colour (bg-none strips the primary background-image that used to
paint over !bg-rose-600).
- Light mode: cool card rims instead of white-on-white, stronger shadow.
Redundancy / touch
- Removed only the header gear; the hamburger drawer (folders, Settings,
theme) and the tab-bar Settings stay.
- Theme toggle is a bordered chip with an action aria-label (drawer row too).
- Empty library hides the folder pills, demotes Import to a quiet link and
keeps a single primary CTA. 44px targets for nav rows, segmented control
and folder pills on phones.
- Fixed a pre-existing 16px horizontal overflow (header -mx-4 vs a
padding-less parent) and let info values wrap instead of truncating.
Verified: mobile suite 47/47 (EN+CS, 360/390px), pixel-sampled contrast
audit 0 runs below WCAG AA (8 runs, both themes/locales; axe marks the glass
'incomplete'), i18n 27/27, desktop regression 72/72, lint + build clean.
Service worker cache bumped to freezmo-v5.
English stays the default; Czech is a full translation. Only the app chrome
is translated - notes and generated decks keep their own language, which is a
core feature, not a setting.
i18n
- lib/i18n-dict.ts: flat en/cs dictionaries (441 keys each), translate() and
translatePlural() with real Czech plural rules (1 sada / 2-4 sady / 5+ sad).
English is the default and the fallback for a missing key.
- lib/i18n.ts: browser store (freezmo.locale.v1), useI18n() hook, and the
x-freezmo-locale header. The hook's t/plural are bound to the locale React
is rendering with, so the first client render matches the server HTML and
then re-renders in the stored language; module-level t is only for event
handlers and non-React helpers.
- <html lang> follows the choice (inline script + setLocale).
UI
- Settings -> Language segmented control (English / Cestina), plus an EN/CS
button on the key gate for first run.
- Every screen translated: sidebar, header, tab bar, library, deck cards,
folder bar, create flow, all seven activities, study chrome, results,
settings + health panel, API-key gate and help, install sheet, offline and
the deck-not-found page.
- Plural-aware counts everywhere (decks, folders, activities, runs, photos,
documents, pages, words, wrong attempts).
Server
- API routes and guards (generate, grade, health, http-guard, rate-limit,
ollama error mapping) answer in the request's language, so error cards and
the health panel never fall back to English mid-sentence.
Fixes
- A hydration mismatch when a non-default locale was stored silently dropped
the .dark class after hydration; render-time t() is now bound to the
hook's locale (UploadScreen.describeExtraction, ResultsScreen.answerFor,
DeckCard's folder fallback).
- Bumped the service worker cache to freezmo-v4 for this deploy.
Tests: i18n 27/27 (gate toggle, persistence, html lang, Czech plurals,
settings switch) and a rebuilt regression suite 72/72 (English default,
library, create, all 7 activity types, results, settings, install sheet,
offline, PWA, security, Czech smoke).
Rebuilds the look around the spec: an ice scene, one shared glass
recipe, icy accents and glass on every large surface. Visual only —
layout, behaviour, copy and functionality are untouched.
Background
- .ice-scene: fixed, z-index -1, pointer-events none. Navy base
(#070b16 to #0c1426) in dark, pale (#f4f9ff to #e6f1fb) in light,
four drifting glacier blobs (#38bdf8/#60a5fa/#818cf8, 30-60s
transform-only loops), five glossy ice orbs (40-220px radial
gradients with a highlight at 30% 25% and a blue shadow) placed so the
glass blurs them, and an SVG feTurbulence grain at 4-5%.
- prefers-reduced-motion stops the drift; phones get two blobs and two
orbs fewer.
Glass
- One shared recipe (.glass-panel, .card, .sidebar-surface,
.study-chrome, .tabbar, .glass, .gate-card): rgba(255,255,255,.06)
dark / .55 light, blur(24px) saturate(140%) (16px on phones), a bright
1px rim, an inset top highlight and a blue-tinted outer shadow.
- Nested glass (chips, inputs, secondary buttons) is more opaque and
never adds a second blur layer. @supports fallback for no
backdrop-filter. Radii: 24-28px cards/sheets, 14px inputs/buttons,
pills for chips. Cards hover brighter + cyan rim + 2px lift, 180ms.
Colour and type
- Accent is glacier cyan (#38bdf8) to ice blue (#0ea5e9); progress bars
and selected states use the gradient; the active sidebar item is a
frosted highlight with a cyan rim.
- Primary CTA: icy gradient — white to #bfe3ff with ink text in dark,
deep blue in light (biased so the label sits on the darker half and
keeps 5.6:1).
- Leftover slate/black greys replaced with navy-tinted frost tokens.
- Headings are semibold with tighter tracking.
Screens
- Dashboard: the sidebar is one tall inset rounded glass panel; deck
cards are glass.
- Gate: one centred glass card over the scene, orbs visible behind it.
- Sheets/modals: glass over the dimmed, lightly blurred backdrop.
- Study view: question card more opaque (.glass-solid); top bar and
pager are slim glass pills.
Perf: measured on a phone viewport with 4x CPU throttling. The animated
blobs' filter: blur() was the whole cost (150ms vs 33ms per frame), so
they are soft radial gradients with no filter now; idle 60fps, ~17ms
median while scrolling.
Tests updated for the new tokens: contrast 18/18 AA, deck chrome 15/15,
key gate 49/49, install sheet 64/64, deck fixes 15/15, retry 14/14,
zoom 6/6, final ux 12/12, security 8/8, pwa 16/16.
Layout (desktop / lg+ only):
- 40px top padding above the page title.
- Deck grid uses minmax(320px, 1fr), so two cards fill the content width
and share a right edge with the header (same max-width container).
- Group headings only render once real folders exist; with none, a single
quiet "All decks" label replaces "Unorganized".
- Import JSON becomes a plain text button (mobile keeps the pill).
Deck cards (desktop):
- The whole card is a link; Study is a compact secondary button instead
of a full-width solid pill.
- The ... control is a 32px ghost button with a real ellipsis icon,
aligned to the title's centre.
- Meta line always shows the same fields (activities · runs / Not played
yet); the score is a separate quiet "Best 53%" stat.
- 12px rhythm between title/meta/tags/summary, 16px before the actions.
- Hover: lighter surface, stronger border, soft shadow and a 2px lift in
light mode (pointer devices only, so touch has no sticky hover).
Sidebar (desktop rail):
- All decks + Unorganized are views above the FOLDERS label; only
user-created folders sit under it.
- Count only on All decks. The mobile drawer is unchanged.
Theme:
- Dark: sidebar is a step darker (#181818 to #141414 vs #212121 page).
- Light: cards get a slightly stronger border (#e2e2e2) and a soft
shadow; the sidebar divider and edge shadow are stronger too.
- Medium difficulty darkened to #7a5300 (6.2:1 on the light chip).
Mobile is untouched: layout changes are behind lg: (or the desktop prop);
theme tweaks are shared tokens.
Verified: key-gate 49/49, install sheet 64/64, retry 14/14, zoom 6/6,
deck chrome 15/15, deck fixes 15/15, final ux 12/12, contrast 20/20,
security 8/8, pwa 16/16.
In user-key mode a browser with no stored Ollama key now gets a polished
gate instead of the app shell: one masked input with a show/hide toggle,
a single Continue button, inline validation errors, and a "?" help sheet
with the steps to a free key.
- Validates the draft key through /api/health (real 1-token probe) before
saving; invalid-key and network failures read differently.
- Key still lives only in this browser's localStorage; nothing server-side.
- Gate wraps /, /create and deck study; server-key and local-daemon modes
skip it; removing the key in Settings brings it back.
- Removes the now-redundant dashboard/create API-key banner.
- Monochrome corner glows (dark near-black / light near-white), 24px card,
48px field and button, gentle fade/slide-in, reduced-motion aware.
- Help modal: centred dialog on desktop, bottom sheet on mobile, closes via
X, Escape or backdrop.
- README and browser suites updated (34 gate checks, 15 key-flow checks,
12 shipped-default checks; ui/folders/docs/pwa/security/contrast green).
Next.js 15 app that turns photos, PDFs, DOCX/PPTX and text into a swipeable
feed of AI-generated activities (flashcards, multiple choice, true/false,
fill-in-the-blank, matching, ordering, short answer) using the user's own
Ollama models.
Highlights:
- All AI calls run in server route handlers; the browser never talks to Ollama.
- Bring-your-own-key mode (default): the key lives only in the browser and is
sent per-request; server, local-daemon and shared-key modes also supported.
- Client-side document extraction (pdf.js, mammoth, jszip) with scanned-PDF
page rendering for the vision model; notes stay in their original language.
- ChatGPT-style shell: collapsible sidebar / mobile drawer, neutral token-based
light + dark themes, folder organisation, PWA (manifest, SW, offline page).
- Strict JSON validation with zod + auto-repair, rate limiting, and request
guards (cross-origin, body-size, API-key sanitising).
- setup.sh bootstraps deps, .env.local and a production build.
Gitignore excludes .env*, the generated pdf.js worker and local scratch files.
