ThaliaGive each task
its own conversation.
Open a local project and start a chat for a feature or a fix. Name and pin your threads so you can return to the right conversation when you switch tasks.
Build with Muse.
Native to your Mac.
Agentic coding with Meta Muse. Bring your projects, direct the work, and inspect the diffs.
From the first request
to the pull request.
Thalia brings a native Mac interface to the Meta Muse CLI, with project conversations, a terminal, code review, and Git workflows.
The capabilities below are in the current development build. Thalia is coming soon; launch details may change.
Give each task
Direct the work
as it happens.
Use plan mode to work through an approach before implementation. Follow the live activity, respond to approval requests, and interrupt or steer a running task when the brief changes.
Review the code,
then run your checks.
Inspect changed files and diffs in the app. Run your project’s verification commands and review their results alongside the changes. A terminal in each project keeps command-line work close by.
Try a change.
Keep a way back.
Capture local file checkpoints and preview what a restore would change. Use Git worktrees for work that needs a separate checkout, then push a branch and create a GitHub pull request through the GitHub CLI.
Bring your working habits with you.
Project instructions
Give Muse your repository conventions and save project context for later conversations.
Commands you can reuse
Turn repeat requests into custom slash commands, with arguments for the details that change each time.
MCP connections
Configure MCP servers for tools and services, with presets for GitHub and Linear. Connected services require their own access and setup.
References in the conversation
Attach source files or fetch a web page by URL and clip its text into your next request. Give Muse the documentation and references behind the change.
Common questions.
What is Thalia?
Thalia is a native macOS app for agentic coding with Meta Muse, made by Mabry Ventures.
Can I use it yet?
Thalia is in development. Join the launch list and we’ll email you when it’s available.
What do I need to use Thalia?
Thalia works with the Meta Muse CLI on your Mac and requires access to Muse. Setup guides you through the runtime, sign-in, and opening your first project. Final system requirements will be published at launch.
Which platforms will it support?
Thalia is being built for macOS. Windows and Linux versions have not been announced.
How much will it cost?
Pricing has not been announced.
Is Thalia made by Meta?
No. Thalia is an independent Mabry Ventures product built to work with Meta Muse.
Your next build starts here.
Get one email when Thalia is ready to try.