An idea walks in.
A film walks out.
GRACE is a multi-agent film studio that runs entirely on your Mac. Pi directs a crew of local AI agents that write, shoot, voice, score, and deliver a finished short film — and nothing advances without your approval.
GRoup of Agents for Creating Entertainment
It stops and asks you five times.
You give GRACE one sentence. The agents write, plan, shoot, and mix on their own. At five points the production stops and waits for your sign-off. Each approval is tied to the exact files you saw, so the finished film can't change quietly afterward.
Brief
Pi asks the few questions that matter, then locks in what you're making.
Treatment
The story: logline, synopsis, beats, and how the film should look and sound.
Production
The plan: cast, locations, a shot-by-shot list, and how many takes to render.
Picture lock
The checks run and the critics weigh in. Then you watch the cut and make the final call.
Delivery
The finished film with captions and a poster, plus a receipt for every file. Or hand it to Animatic for editing.
A full creative department, on one laptop.
Each department is an agent with a job, a status, and a paper trail. Pi is the producer-director; you are the studio head.
Story writer
Turns the brief into a treatment, beats, and a screenplay worth shooting.
Cinematographer
Blocks the film shot by shot — purpose, framing, motion, transitions.
Casting director
Creates the reference images for cast and locations so every frame stays consistent.
Sound designer
Dialogue performances, authored effects, and score on one accepted timeline.
Continuity supervisor
Checks every generated take against those references before it can be selected.
Independent critic
Reviews the cut with fresh eyes and files targeted reroll requests.
A native macOS control room.
Swift and SwiftUI, with a built-in Ghostty terminal for talking to Pi mid-production.
Ten checks before it ships.
GRACE will not call a film finished until all ten pass. They confirm the film plays, the dialogue is clear, the sound level is right, and the files you approved are the files you get.
Every frame made on your machine.
GRACE generates through mere.run-managed local models on Apple Silicon. No cloud render queue, no per-frame bill, and your footage never leaves the laptop.
| Canon & keyframes | image models (e.g. flux) |
| Shot video | video models (e.g. wan 2.2) |
| Visual inspection | vision models (e.g. qwen3-vl) |
| Voices & dialogue check | tts + asr (e.g. kokoro, whisper) |
| Score & effects | music + sfx (e.g. musicgen) |
| Direction & crew | Pi on a local agent model |
Try it yourself.
GRACE is open source. You bring an Apple Silicon Mac and the local toolchain; it brings the studio.
# Requires Apple Silicon macOS 15+, Xcode 26+, XcodeGen $ git clone https://github.com/sawfwair/mere-film-studio $ cd mere-film-studio $ brew install xcodegen $ ./scripts/check.sh # lint, tests, and a full app build $ open MereFilmStudio.xcodeproj # Optional: package a drag-to-Applications disk image $ ./scripts/package-app.sh
Runtime requirements: mere-film-tools, pi, a mere.run build with inline agent support, ffmpeg/ffprobe, and animatic only if you publish a handoff. The app discovers MereRun-managed
Pi installs automatically and never reads or stores provider secrets.