Open Source Conductor Alternatives

T3 Code calls itself an agent harness control surface. The problem it removes is being tied to the terminal where an agent runs, because the server runs on your machine and the clients talk to it, so a session started at your desk can be steered from a phone on the train.

It drives agents you have already installed and authenticated rather than shipping its own. Claude Code, Codex, Cursor, Grok Build, OpenCode and Google Antigravity are supported, and at least one of them must be set up first. Running the published npx command starts the backend plus a local web app with nothing to install.

The surfaces and controls it exposes are the following.

• Mobile apps: iOS and Android clients drive agents running on a machine somewhere else.
• Desktop app: an Electron build distributed through GitHub Releases, winget, Homebrew and the AUR.
• Remote access: documented setup for reaching your agents from a phone or another computer.
• Permission modes: configurable limits on what an agent may do before it has to ask.
• Source control integrations: documented hooks into the repositories the agents are working in.

The maintainers are blunt about the state of things. The project is very early, bugs are expected, and large contributions are mostly not being accepted yet. It exists because the team wanted a remote-ready agent workflow that stayed forkable, so anyone unhappy with its direction has everything needed to build their own. Node.js 22.16 or newer is required.

Run one coding agent at a time and most of the afternoon goes on waiting. Superset is a macOS desktop app that puts many of them to work at once, then gives you one place to watch them and one place to review what they produced.

Each task gets its own git worktree with its own branch, terminal and environment, so agents never overwrite each other. Around that sit a sidebar with working indicators, completion chimes and dock badges, a diff viewer for inspecting and editing changes, and one-click handoff to your editor.

Several pieces carry the daily workflow.

• Parallel workspaces: run many agents at once, compare the results and merge the branch that won.
• Built-in terminal: tabs, splits, presets and sessions that survive a restart, plus a prompt editor with file mentions.
• In-app browser: preview dev servers inside the app, with ports detected per workspace.
• Automations: schedule agent sessions to triage issues overnight, draft a changelog or refresh dependencies.
• Remote access: reach another machine's workspaces from the desktop app, the CLI or your phone.

Any CLI-based agent works, with Claude Code, Codex, Cursor Agent, Gemini CLI, Copilot and others listed as fully supported. Superset is released under the Elastic License 2.0, and its CLI, SDK and MCP interface mean an agent that can run a command can also drive the app itself.

Synara is a local-first desktop application that gives coding agents a workspace rather than a terminal tab. Projects, agent sessions, diffs, terminal, browser, files and Git share one surface, so reviewing what an agent did happens next to where it ran instead of in another window.

The model has four layers. A project carries repository context and settings, a thread holds a single task with its conversation, files, state and history, a provider session is the authenticated agent runtime doing the work, and workspace tools are the surfaces around it. Synara ships no model access of its own, driving the runtimes already installed and authenticated on the machine.

The current development build integrates a long list of them locally.

• Codex: through the Codex CLI and app-server.
• Claude: through Claude Code.
• Cursor and Antigravity: through the Cursor agent runtime and the Antigravity CLI.
• Grok and Droid: through Grok Build and Factory Droid.
• OpenCode and Pi: each with its own configured model providers.
• Devin: through the Devin CLI.

Parallel work runs in managed worktrees so two threads never quietly edit the same checkout, and a handoff moves a task to another provider without losing project context. Automations cover recurring runs, and external MCP integrations grant other local clients scoped access a person has to approve. Native builds target Windows x64, macOS on Intel and Apple silicon, and Linux x64, under the MIT license. The authors describe it as early-stage software whose interfaces are still moving.