Flatnic

Linux · Office & Productivity

Lotti

Private logbook with AI assistants

by Matthias Nehlsen

Download

Official site: flathub.org

About Lotti

Lotti gives you a private logbook and a staff of personal AI assistants to go with it. Record your day the way it actually happens — tasks, tracked time, voice notes, transcriptions, journal entries, habits, and health data — and long-living agents read what you record, keep it summarised, remember the context you would otherwise lose, and propose the next step. Agents suggest, you decide: every proposed change waits for your approval, with one small exception — an initial title or language for an otherwise empty task.

All of it happens on your own devices. No server ever holds your data in readable form: multi-device sync is end-to-end encrypted, and the relay between your verified devices holds only ciphertext — not forever, and nothing depends on it keeping anything. There is no telemetry. On capable hardware the AI models run locally too, so your data never has to leave the machine; on lighter hardware, or to save battery, you route inference — per life category — to a cloud provider you choose. Your logbook is ordinary SQLite on your own disk with attachments in ordinary files beside it, readable without Lotti, so there is nothing to export and nothing to unlock.

Under the hood, sync runs over Matrix using Vodozemac (Rust) for Megolm crypto; the homeserver relays only ciphertext between your own devices, and encryption keys reach only devices you have verified. A new device catches up because your other devices re-send history, not because a server stored it.

Get support and join the Lotti community on Discord via the Contact link.

What it does:

Long-living AI agents (mission, soul, report directive) that read your logbook, propose changes, and only act after you approve

Two-database architecture: a strict separation between your facts (the user database) and what the agents think (the agentic database), enforced on disk

Run reasoning-capable models locally via oMLX or Ollama (e.g. Qwen 3.6 35B A3B, a Mixture-of-Experts model with ~3B active parameters) — or use Gemini Flash, OpenAI, Anthropic, Mistral, Melious.ai, or any OpenAI-compatible cloud provider, on a per-category basis

Local voice transcription with Whisper or Voxtral; cloud transcription via Gemini, OpenAI, Mistral, or Melious.ai

AI-generated cover art for tasks via Nano Banana Pro on Gemini, OpenAI, or Qwen, and Flux on Melious.ai

Both the logbook and the agentic state sync end-to-end encrypted

Habit tracking with success/fail/skip completion types, custom measurables, and…

How to install Lotti

  1. Click Download — the developer's official website opens in a new tab.
  2. Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
  3. Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub com.matthiasn.lotti
  4. Open Lotti once it finishes installing.
How to install Linux apps with Flatpak

Frequently asked questions

Is Lotti free to download?

Yes. The Download button sends you to flathub.org, the developer's official site, where Lotti is available to download. Flatnic doesn't host or modify any files.

How do I install Lotti from the command line?

With Flatpak, run: flatpak install flathub com.matthiasn.lotti. This installs it from the official source and keeps it updated.

Is Lotti safe?

Lotti downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.

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