Cabin MaintainerOS · The Local Workspace for Code Reviewers

The workspace for
code reviewers

Maintainers spend 90% of their time gathering context and only 10% applying human judgment. Cabin reverses this ratio — orchestrating CI checks, DCO verification, git worktrees, and local AI reasoning in under 10 seconds.

Download for macOS (.dmg) GitHub Repo

Offline SQLite Storage (cabin.db)

7 Specialized Pipeline Workers

Electron + React + TypeScript Monorepo

MIT License

Cabin MaintainerOS — Review Dashboard

CIWorker & MergeWorker

Status: CLEAN · 0 merge conflicts

Antigravity AI Provider

ag review --pr spawned locally

DCOWorker Sign-off

Signed-off-by commits verified

Engineered Architecture

The 7-Worker Pipeline Orchestrator

Cabin executes sequential static analysis workers in packages/workers, gathering full context before you spend a single second reviewing code.

c83a602 Google search console verify Signed

7c222d4 refactor: worker static analysis Signed

b199fa0 feat: simple-git worktree isolate Signed

DCO Sign-off Verification

Validates commit signatures against origin/main via regex before review.

View DCO Spec

spawn: ag review --pr 2002 LIVE STDOUT

MEDIUM packages/github/src/index.ts:42 — Add Octokit rate-limit retry handler

INFO packages/database/src/index.ts:18 — SQLite schema migrations verified

NOTICE packages/workers/src/CIWorker.ts:89 — Combined check runs passed

AntigravityProvider

Spawns local CLI review processes with real-time stdout streaming to the React interface.

Explore Provider

[Unit: GitHubWorker (15%)] Status: OK · Octokit Bridge

Fetches PR details, commits list, and changed files. Emits PR author & metadata payload.

7-Worker Pipeline Orchestrator

Sequential static analysis gathering PR diffs, CI check runs, DCO signatures, and review comments in under 10s.

Inspect Pipeline Units

CREATE TABLE review_sessions (
  id TEXT PRIMARY KEY,
  pr_number INTEGER,
  decision TEXT, ai_summary TEXT
);

CabinDatabase (cabin.db)

Persistent local SQLite storage for settings, repositories, cached PRs, and review decisions.

Inspect Database Schema

Integration Engine

Connected Integrations, Zero Cloud Lock-in

Cabin acts as the central local bridge between your GitHub repositories, simple-git worktrees, local AI models, and SQLite audit storage.

GitHub API

Antigravity AI

simple-git

Cabin Core

SQLite Ledger

CI / DCO

Submit Review

Connect Repositories & Token

Save your GitHub PAT in local SQLite settings. Cabin syncs assigned PRs every 30 minutes without server middleware.

Execute 7-Stage Pipeline

GitWorker checks out target branch (+refs/pull/PR/head), CIWorker validates checks, and MergeWorker detects conflicts.

Spawn Local AI CLI

AntigravityProvider launches your local CLI tool (ag review --pr) with full context and streams stdout live to React UI.

One-Click Decision & Audit

Approve, request changes, or submit comments directly to GitHub API while saving full audit history in SQLite.

Step 01 — Sync Loop & Settings (packages/database)

// apps/desktop/src/main.ts -> Sync Loop (repeat every 30m)

✔ GitHubService.fetchAssignedReviews() -> DB write cached_pull_requests

✔ Emitted IPC event github:pending-updated to React UI

✔ Workspace initialized in ~/Cabin/repositories/

Step 02 — ReviewPipeline.execute() (packages/review-engine)

Executing ReviewPipeline units sequentially:

GitHubWorker 15% GitWorker 40% CIWorker 55% MergeWorker 70% DCOWorker 80%

Synthesized Unified JSON Context Metadata payload in under 10 seconds.

Step 03 — AntigravityProvider.review() (packages/providers)

// Spawned: [executablePath] review --pr [prNumber] (env: GITHUB_TOKEN)

[HIGH] packages/desktop/src/preload.ts — Verify IPC bridge validation

[WARN] packages/ui/src/store.ts — Add type guard for undefined pull request

[PASS] DCO signature verified and CI check runs green

Step 04 — submitDecision() -> Octokit & SQLite Storage

Posted review to GitHub API · Persisted session to review_sessions table in cabin.db

Screenshots & UI

See Cabin MaintainerOS in Action

A focused, information-dense desktop dashboard designed exclusively for maintainer productivity.

Cabin — Dashboard Overview

Dashboard Overview

At-a-glance view of pending PRs, stale reviews, repository queue health, and CI status across all your projects.

Review Queue

Every assigned PR in one place, grouped by repository with CI status, mergeability, DCO badge, and AI status visible at a glance.

Review History

Complete audit log of every review decision with AI summaries, worker logs, and timestamps stored locally in SQLite.

Native Installers

Download Cabin for Desktop

Native packages for macOS and Windows, or build directly from the monorepo source.

Recommended for your system

macOS

Apple Silicon (arm64 dmg)

Download .dmg

Windows

Windows 10 / 11 (NSIS Setup exe)

Download .exe

Linux

Debian package (arm64 deb)

Download .deb

Build from Monorepo Source

git clone https://github.com/TarunyaProgrammer/Cabin-MaintainerOS && cd Cabin-MaintainerOS && npm install && npm run build:all

The workspace for code reviewers