superset.sh: agentic IDE for Mac & Linux

superset.sh is a desktop app for running several AI coding agents at once, each in its own isolated workspace. It covers the same ground as Conductor, but also runs on Linux (Conductor is Mac-only as of August 2026).

What it does

Like other agentic IDEs, superset.sh is built around a few features specifically for modern agentic coding:

Run multiple agents simultaneously
Isolate each task in its own git worktree so agents don’t interfere with each other
Monitor all agents from one place and get notified when they need attention
Switch between LLM providers (Claude, Codex, and others) per task

Why worktrees, not branches

The core concept behind superset.sh — and tools like it — is the git worktree: a separate directory with its own files and branch, sharing the same repository history and remote as your main checkout.

A plain branch checkout still points at the same files on disk. A worktree gives each task its own physical copy of those files. That’s what lets multiple agents (or humans) work on the same repo at the same time without stepping on each other — and lets you throw a workspace away without touching your main branch. Each workspace also gets its own worktree, so switching between tasks is a click instead of a stash-checkout-rebuild cycle.

Install on Ubuntu

Download the AppImage from the latest release.
Run it:
```
./Superset-x86_64.AppImage --no-sandbox
```
--no-sandbox skips a permission prompt — only pass it if you trust the app.

If that doesn’t work, extract and fix sandbox permissions manually:

./Superset-x86_64.AppImage --appimage-extract
sudo chown root:root squashfs-root/chrome-sandbox
sudo chmod 4755 squashfs-root/chrome-sandbox
./squashfs-root/AppRun

Daily recipe

The docs have a full set of examples and best practices. For day-to-day bug fixes and features, this pattern works well:

Feature (⌘N → new branch): prompt an agent with the task and let it run.

Build the PDF parsing button on the upload page. Match the existing
export patterns in this codebase. Stop and ask before adding dependencies.

Bugfix (⌘N → new branch): describe the bug and let the agent reproduce and fix it.

Users report the auth form clears on validation errors. Reproduce it,
find the root cause, and fix it. Include the repro steps in your final message.

Rotate attention: use the sidebar to jump to whichever workspace needs you next.

What stands out

Notifications. A small feature, but a useful one — it lets you switch attention to a task the moment an agent finishes or needs input, instead of polling each workspace.
Side-by-side terminals. Beyond separate terminal tabs, you can view terminal/agent panes side by side per worktree, giving more visibility into what’s running.
Fast provider switching. Swap between Claude, Codex, and other LLM providers per task.
Skills and hooks. Combined with custom skills and hooks, superset.sh can enforce conventions automatically — e.g., tagging branches as feat/, bug/, or doc/, or running pre-commit checks before every push.