BIGONE
Windows · Turkish · v0.1.0

An assistant that lives on your PC. It asks before it changes anything.

BigOne is one process running in the background. You give it work by typing or by voice: it opens folders, organizes files, reads your code and reminds you of things. Its brain, memory and keys stay on your machine; without internet it uses a local model.

How it works Download · coming soon
BigOne desktop app: the commands "open the Downloads folder" and "what is on the desktop?" in Turkish, with their answers
01The chat tab of the desktop app. Both commands go through the fast path: no language model.
One command, two paths

Simple work by rules, the rest by a model. Changes by approval.

Every command first goes to the fast path: if a skill's regular expressions recognize it, the work is done without a language model. No internet needed, and the answer is immediate.

If not, the command goes to the LLM loop. The model sees the skills as tools and calls one. If the call would change files, BigOne first works out what it would do, shows you without touching anything, and waits for your approval.

> İndirilenler klasörünü aç            # open Downloads
  fast path · open_folder · L1 · no model
  …\Downloads klasörü açıldı.

> İndirilenler çok dağınık, biraz toparlar mısın?   # tidy up Downloads?
  no fast-path match → LLM loop → organize_folder
  Onay gerekiyor (L2): 43 dosya taşınacak (…).   # approval needed
  approved → ran → undo record written
  … Geri almak için: "geri al".   # say undo to revert
Approval window: L2 change, organizing the Downloads folder by type, Reject and Approve buttons
02The approval window always opens on top: risk level, exactly what will happen, and the time left. If time runs out, the request counts as rejected.
Overview

One brain, thin clients

Intelligence and data live in one place: your PC. The desktop app, command line, microphone and phone are interfaces to the same process; there is no fallback intelligence on the phone.

BigOne system context The desktop app, the command line and the microphone connect to the single BigOne process on the PC. That process uses the local model, Windows and the SQLite database. Cloud models are used only if you add a key. The phone connects over the same Wi-Fi with TLS. YOUR PC Desktop app Tauri · system tray Command line bigone "…" Microphone wake word: "BigOne" bigone serve one brain · 127.0.0.1:8765 Mind · event queue Fast path · rules LLM loop · tools Permission guard · approval Ollama :11434 · qwen2.5:3b Windows files · apps · Recycle Bin SQLite + Credential Manager memory · audit · keys Cloud models optional, with a key Gemini · Groq Cloudflare · OpenRouter Claude · OpenAI Android phone same Wi-Fi · TLS :8766
03What runs on your PC and what may leave it. Amber: the path that changes things in Windows goes through approval.
Principles
  1. 01

    Local first

    By default no data leaves the machine. Cloud models come in only if you add a key and allow them; every cloud request is written to the audit log.

  2. 02

    No change without approval

    Every action carries a risk level from L0 to L4. Deleting and running code are always asked, and cannot be approved by voice or from the phone.

  3. 03

    Every capability is a skill

    The core stays small. Opening a folder and setting a reminder are both skills: a manifest, a Python file and its test.

  4. 04

    Rules first, then the model

    Simple commands never reach a model. The language model only runs for work the rules don't recognize.

  5. 05

    Swappable providers

    Language model, speech recognition, voice and storage sit behind interfaces. Moving from a free model to a paid one is a setting in the panel.

Spec sheet

What runs where

  • CorePython 3.12 · FastAPI (REST + WebSocket) · 127.0.0.1:8765
  • Local modelOllama · qwen2.5:3b · no internet needed
  • CloudGemini, Groq, Cloudflare, OpenRouter (free) · Claude, OpenAI (paid)
  • DataOne SQLite file · keys in Windows Credential Manager
  • VoiceEnergy-based VAD · faster-whisper · Piper · all local
  • DesktopTauri 2 · Svelte · Rust bridge · system tray
  • PhoneKotlin · Jetpack Compose · TLS :8766 · certificate pinning
  • Skills28 built-in · manifest + code + test · approved skill generation
Status

What works today, what is next

  • works Core and command line Fast path, local model, history and audit log.
  • works Cloud and approvals Provider order, failover, approval for L2 and above.
  • works Files and memory Find, organize and undo, delete to the Recycle Bin, long-term memory.
  • works Voice Wake word, Turkish speech recognition, spoken answers with Piper.
  • works Self-extension Writes new skills; shows the code, tests and installs it after approval.
  • works Companion Work sessions, speaking up on its own, learning by observation, tasks and reminders.
  • in progress Desktop and installer App and installer are ready; the first public release, 0.1.0, is pending.
  • in progress Android Pairing, chat, push-to-talk and approvals tested on a real phone; signed APK pending.
Read on