A private AI companion that lives on your desktop, keeps your machine in order, and wears any world you like , from cherry blossom to a dark-watch skyline.
No cloud round-trips, no account, no data harvested. Bithaus talks to a local model and manages your Mac , processes, disk, memory, scheduled jobs , entirely on-device. The intelligence is yours to keep.
Everything happens locally. Your files, your chats, your machine , they never touch a server.
Ask it to clean disk, kill a runaway process, summarize your inbox, or just chat. It acts, then reports.
Six hand-crafted skins, each with its own pixel companion, palette, and day-night sky.
Aura, Claude, Guardian, Frontier, Nightfall, Gotham , each a full reskin with its own pixel companion and sky. Scroll through them and your Mac changes its whole personality.
The polished money command center. Stocks, crypto, Polymarket, and Stripe , connected, live, and on-device. Your whole financial picture in one glassy dashboard, wearing the world you chose.
Live watchlist, positions, P&L.
Wallets and tokens at a glance.
Open positions and odds.
Revenue and payouts, connected.
Dashboard, chat, disk, crons, MoneyHaus , watch the whole app in motion, reskinning as it goes.
Watch the demo โA companion that keeps your Mac in order and your desktop alive , private, yours, and dressed however you like.
Every world, every companion, and this whole site were designed and built with Anthropic's Fable 5. Bithaus ships the same crisp, hand-made feel end to end.
New to it? Read the full setup guide , install, serve it privately to your phone, and wire up a free Obsidian brain.