The Studio.

Three regions. The chat rail on the left is where you talk to MMNTM and watch it work. The preview in the centre is your app, live — it hot-reloads on every save. The drawer along the bottom holds Code, Logs, Problems and Env; the rail on the right holds your versions.

Prefer a calmer view? Settings → Simple mode hides the code and versions and leaves chat plus preview. Everything is still reachable through the conversation.

• Plan. For anything that touches more than a file or two, MMNTM posts a short checklist first. Steps tick off as the files they name change.
• Edit. MMNTM reads before it writes, prefers small exact edits over rewrites, and every change appears as a diff card you can open in the code pane.
• Check. Before the run ends, the project is type-checked and the preview server's log is scanned. Mobile projects also get a real native bundle built. If anything fails, MMNTM fixes it inside the same run — those fix rounds are free.
• Version. Every run ends with a snapshot. Restore any version with one click; the current work is kept as a version too, so nothing is ever lost.
• Receipt. The card ends with credits, steps, time and which tier did the work.

Runs survive a page refresh. If you close the tab, MMNTM finishes the work and you can pick it up later.

Build lets MMNTM change files. Chat is read-only: ask how something works, get a code walkthrough or a plan without touching the project. Chat runs are cheaper.

Pick per message from the composer. The cost pill shows an estimate before you send; the receipt shows what actually happened.

Open any file from the tree or a diff card. Edits save with ⌘S, which also records a version and hot-reloads the preview. Toggle Diff vs previous version to see what changed. ⌘P jumps to a file.

Add values in the Env tab. Keys prefixed VITE_ (web) or EXPO_PUBLIC_ (mobile) are public and ship in the bundle. Anything else is a secret: stored encrypted, available to build steps, and never shown to MMNTM. When a feature needs a key, MMNTM asks for it in the chat and continues once you've set it.