Every feature answers the same question: why does this app deserve a home on your phone and your computer?
This is the feature that defines Lucent. Bring your own model — OpenAI, Anthropic and Google request shapes are spoken fluently, several profiles kept and switched in one tap — or run the whole thing on the device. Say nothing at all and the assistant simply isn't there; the notes app loses nothing.
What makes it worth having is that it can act: create, read, edit, colour, pin, archive and delete notes; create, complete, reopen, schedule and prioritise tasks; search with a real filter language; attach, rename or remove files. Someone with an opinion and no hands is a chat box. This is a butler who has been instructed to knock first.
Before it alters anything it shows you precisely what it intends — in your own language, in a dialog that is itself the editor, with every arguable field editable before a single byte is written. Your word is always the last one spoken.
Import a .gguf file (or a .zip with one inside) and the assistant answers using llama.cpp running directly on the device — no account, no API key, no network, the model unloaded the moment you leave the app. Roughly 1–4 GB Q4 models hit the sweet spot on a phone; a desktop can afford greater ambition. Tools are opt-in locally, and GPU acceleration is a choice made after a plain warning: the CPU always works, and a GPU that disagrees falls back gracefully. Vision is optional too — import an mmproj file and the assistant can study a photograph and discuss it.
Every meaningful edit is snapshotted, so you can always see what a note once said and restore it when a confident rewrite turns out to have been mere optimism. Type [[Shopping list]] and it becomes a tappable link; point at a title that does not yet exist and the link glows red until a tap graciously brings the note into being.
Subtasks, priorities, repeat schedules, and reminders that survive a reboot. Due dates are parsed from ordinary language — next Friday at 6 becomes a genuine timestamp with a genuine alarm — and repeat cadences are first-class rather than a clever sentence that eventually surrenders. Completing a task ticks its whole checklist off with it, and completed tasks retire to a screen of their own.
A living gradient drifts behind frosted panels that blur whatever passes beneath them, never quite repeating itself, at a cost the device agreed to in advance. A generous spread of palettes across eight style families, with an auto-cycle or random companion that wanders through them; light, dark, system, and a gallery of Monet-tinted themes — on Android 12 or later the palette borrows your wallpaper's colours for the day. Widgets bring the same glassy surface to your launcher; on Windows the app slips into the tray and a sidebar takes over from the bottom tab bar, because a wide monitor deserves better than a phone layout stretched sideways.
English, 中文, 日本語, 한국어 — every screen, dialog, date format and template. Switch the language and the whole app follows on the same frame, because there is one catalogue and it is what the interface reads. And the build: no Android Studio, no local SDK, no command line. Push to GitHub, open Actions, run the workflow — and download the result. The recipe is in the box rather than in the author's head.