Munder Difflin v0.4.0

A local hive of Claude Code, Antigravity, Codex, Grok & Copilot agents that run themselves — messaging, routing, and remembering, coordinated by a GOD orchestrator you talk to. Local-first and open source.

→ munderdiffl.in — see it in action, then grab a build below

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What's new in 0.4.0 — The brand grew up

Munder Difflin looks like one product now. The dock icon, the in-app logo, the site favicon, and munderdiffl.in all carry the same yellow "MD" mark — and the landing page was rebuilt to show the real app instead of describing it.

• New app icon on every platform. macOS gets a proper margined-and-shadowed .icns, Windows a full-bleed .ico, Linux a 1024px .png — all cut from the same yellow tile as the in-app logo.
• The landing page shows the product. A looping screen recording in the hero, real screenshots of the Add Agent dialog, the memory panel, and Autonomy & Budgets, and a live pixel-floor sim in a yellow Pokédex shell.
• Bright by default. The site now opens in light mode; dark is one click away and remembered.
• Pricing, reframed. Two services carry the Teams story: Private Cloud (a dedicated sandbox VM per clone, 24/7) and Private Network (E2E-encrypted clone-to-clone wire).

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Still new in 0.3.9 — Ask the app whether it's up to date

Settings → General now answers the question directly. It names the version you're running, tells you whether that's the latest, and gives you one button that says what pressing it does: Check for updates → Download v0.4.0 → Restart to update. The toolbar chip beside the logo has always carried this, but it goes blank when everything is fine — which is not somewhere you go to ask.

• The avatars in the fullscreen roster are bigger. They were drawn at 1× — an 18-pixel figure, too small to tell two hires apart at a glance, which is the tile's whole job.

[!IMPORTANT] If you are on 0.3.8, update. That build shipped a usage-limit guard that never let go: agents held behind a limit stayed held, the reset never landed, and resume now dropped them straight back into the hold. The guard is removed entirely — 0.3.9 delivers messages the way 0.3.7 did.

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[!NOTE] Auto-update carries you here from v0.3.7 or v0.3.8. If you are still on v0.3.5 or v0.3.6, those builds shipped the broken updater and need one manual install — grab the download below, once.

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Previously

• 0.3.8 — memory condensation works for the first time; a Triggers hub; one compaction schedule instead of two; a readable commit history.
• 0.3.7 — auto-update actually runs: a CommonJS/ESM import bug meant the native updater never fired in any packaged build since v0.3.4, and the failure was swallowed by a catch.
• 0.3.6 — a machine with nothing on it can run agents: Node and npm install themselves (verified against the official SHASUMS256.txt), hooks stopped dying with exit 127, ~/dev/foo paths resolve, and the office floor rebuilds itself after losing its GPU context.
• 0.3.5 — a send now escape hatch for a paused message queue, and a compact Command Center header.
• 0.3.4 — talk mode that knows the floor, markdown previews, the IDE git time-machine (history + branch compare), redesigned Settings, xAI Grok and Kimi Code, and a single delivery gate for every automatic writer. Community work by @gts-47 and @qschmick.
• 0.3.3 — the built-in Monaco IDE, and GitHub Copilot CLI as the first community-contributed engine (@anxkhn).
• 0.3.2 — Realtime Michael: a voice channel to the GOD orchestrator.
• 0.3.1 — three more engines: OpenCode, Crush, and pi.dev.

Full history in the CHANGELOG.

⤓ Downloads

Latest builds for every platform. The macOS build is universal — one DMG that runs on both Apple Silicon and Intel.

🍎 macOS

Build	File
Universal (Apple Silicon + Intel)	Munder-Difflin-0.4.0-mac-universal.dmg (github.com)

🪟 Windows

Build	File
Installer (x64) — recommended	Munder-Difflin-0.4.0-win-x64-setup.exe (github.com)
Portable (x64, no install)	Munder-Difflin-0.4.0-win-x64-portable.exe (github.com)

🐧 Linux

Build	File
AppImage (x86_64)	Munder-Difflin-0.4.0-linux-x86_64.AppImage (github.com)

📦 Source

Source code (zip) · Source code (tar.gz) (github.com)

Verify your download: SHA256SUMS.txt (github.com) — then shasum -a 256 -c SHA256SUMS.txt (macOS/Linux) or Get-FileHash (Windows).

The filenames above carry a version number, so they only resolve while this is the latest release. If a link 404s you are reading an old release page — grab the current build from the releases page, which is always right.

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First launch

• macOS — the build is signed with a Developer ID (hardened runtime). If macOS still shows an "unidentified developer" warning on first open, right-click the app → Open → Open once. After that, the first time agents touch a folder you'll get a single macOS privacy prompt for Documents/Desktop/Downloads — allow it once and the grant sticks (it covers the claude agents the app spawns), because the grant is bound to the app's stable signature.
• Windows — not code-signed yet; SmartScreen may show "Windows protected your PC" → More info → Run anyway.
• Linux — make the AppImage executable: chmod +x Munder-Difflin-*.AppImage, then run it.

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Requirements

• macOS 12+, Windows 10/11, or a modern Linux desktop
• Claude Code installed and on your PATH (and/or the Antigravity agy or OpenAI codex CLI for those providers)
• A Claude Code subscription (Munder Difflin drives your existing claude CLI — it doesn't replace it)
• For Realtime Michael (voice): your own OpenAI key with Realtime API access — without it the Talk button stays disabled

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🛠 Build from source

:::bash
git clone https://github.com/chaitanyagiri/munder-difflin.git
cd munder-difflin
npm install        # rebuilds node-pty for Electron
npm run dev        # launches the app with hot reload

Node 18+ and a C/C++ toolchain are required (Xcode CLT on macOS, Build Tools on Windows). To produce installers yourself: npm run dist (current OS), or dist:mac / dist:win / dist:linux.

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What's inside

• The simulation — every agent is a real claude (or agy / codex / local-provider) pseudo-terminal, visualized as an avatar on a watchable office floor (node-pty · xterm.js · Pixi.js).
• Talk to Michael — a realtime voice channel to the GOD orchestrator that reads the hive and acts behind spoken echo-back confirmation, BYOK and main-only.
• Selectable engines + per-hire capabilities — each hire (and Michael himself) runs on a pluggable engine, with its own consented skills + MCP catalog.
• MemPalace — a markdown-first, semantic memory layer the whole office shares; cross-session recall in ~12ms.
• GOD orchestrator + hive — one agent you talk to routes work to specialists and stays autonomous, escalating only critical items (spend, destructive ops, scope) to you natively, through human-in-the-loop prompts. It can also spawn an ephemeral worker straight from Slack and tear it down safely.
• Plugs into your setup — your subscription, settings, skills, and MCP servers, plus an integrations registry with a write-only secret broker; /remote-control reaches the whole floor from your phone.

Full notes in the CHANGELOG.

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Links

Website · Repo · Issues · Contribute · Become a patron

MIT-licensed. An affectionate parody — not affiliated with NBC's The Office or Dunder Mifflin.