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Mosaic
Turn rough ideas into reviewed plans with Codex
Mosaic is a local macOS planning workspace that turns rough product ideas into durable docs and interactive HTML designs with Codex. Review generated candidates, comment in context, inspect diffs, validate changes, and approve immutable revisions—all stored on your Mac. The free first alpha focuses on Plan Studio for Apple Silicon Macs.
Hey Product Hunt — I’m Matheus, the maker of Mosaic.
I built Mosaic because product context kept getting scattered across chats, specifications, design tools, and disconnected files. The first public alpha focuses on Plan Studio: start with a rough idea, work through it with Codex, generate durable product documents and interactive HTML designs, review changes in context, and approve revisions you can return to later.
This is an intentionally focused alpha. Plan metadata and artifacts stay on your Mac, and there is no Mosaic account or cloud sync. It currently requires an Apple Silicon Mac running macOS 13 or later plus compatible Codex access. The build is also unsigned and not notarized, so the download includes installation and checksum guidance.
Projects, implementation, deployment, and provider integrations are roadmap features—not part of this release yet.
Mosaic Alpha is free to evaluate. I’d especially value feedback from anyone who tries it on a real product or feature idea: where does the planning flow feel confusing, redundant, or difficult to trust?
About Mosaic on Product Hunt
“Turn rough ideas into reviewed plans with Codex”
Mosaic was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #126 on the daily leaderboard. Mosaic is a local macOS planning workspace that turns rough product ideas into durable docs and interactive HTML designs with Codex. Review generated candidates, comment in context, inspect diffs, validate changes, and approve immutable revisions—all stored on your Mac. The free first alpha focuses on Plan Studio for Apple Silicon Macs.
On the analytics side, Mosaic competes within Productivity, Developer Tools and Artificial Intelligence — topics that collectively have 1.7M followers on Product Hunt. The dashboard above tracks how Mosaic performed against the three products that launched closest to it on the same day.
Who hunted Mosaic?
Mosaic was hunted by Mat Leal. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Mosaic including community comment highlights and product details, visit the product overview.
Mat Leal