Mohammed2devolop/OneLauncherOffline ? reverse-engineered prompt

Build me an offline version of OneLauncher, with the launcher, the client, and the shared backend all working together in one Rust monorepo.

I want it to open cleanly, show the launcher UI, let me manage and start the client, and work without needing any online services. If anything from the original project is unclear, check the current docs or source online and use the safest simple approach. Make sure the app feels complete enough to run locally, with the pieces wired up properly and the build working from the repo root. If there are any missing assets or settings, add reasonable defaults so I can launch it and test it right away.