~nisfeb

Software for
Urbit.

Chat and calls, mail, a calendar, a knowledge store, and a model of your world. Each one runs on your own Urbit, talks to others peer to peer, and keeps its data where you can read it. No host in the middle, no analytics. New to Urbit? Start here.

The apps Source on GitHub
Ship side · Hoon, on your ship Clients · web, Android, iOS, Linux, macOS, Windows Open source No analytics

The apps

Talon icon
Talon
Chat and calls
A fast native chat client. DMs, group channels, threads, reactions, polls, and voice and video calls between ships, with standing party lines for a group. Semantic search runs on-device. Android, iOS, Linux, macOS, and Windows, from one codebase.
talon.nisfeb.com Source
Lattice
Pages and knowledge
A personal knowledge platform. Write pages in markdown, gemtext, HTML, or Hoon, keep a private tagged store that you and your AI agents share over MCP, search all of it, and mount it as plain files. Everything you publish is addressed urb://~ship/path and travels ship to ship.
lattice.nisfeb.com Source
Auspex
Mail
Mail between ships without IMAP or SMTP. Every message is signed by the ship that wrote it, and a reply or forward carries the whole line of the conversation, so anyone who receives it can verify every word against the original author's key. Web client, desktop app, and a Thunderbird extension.
The protocol Source
Calendar
Events and tasks
A calendar that lives on your ship. Repeating events, tasks, and ICS import. Share a calendar with another ship directly, or over CalDAV to any client, and sync two ways with Google Calendar when you need to.
Source Using it
Orrery
A model of your world
The people, places, things, and situations around you, kept on your ship as dated and sourced observations folded into what is true now or at any past time. Small models turn your messages, mail, and calendar into facts. A larger one reads the picture back and proposes actions, which you approve, or let a policy approve for you.
Source Utilities
Armillary
Sell inference
Sell model inference from your own ship. You hold the provider keys, your customers hold prepaid balances, and every request is priced, forwarded, and debited on the ship. Any OpenAI-compatible client works. Customers pay by card through Stripe or in bitcoin through BTCPay Server.
Source Install

Getting them

Start with Talon. Install it on your phone or computer, sign in to your Urbit, and it installs everything else you need on your behalf. The rest of the apps run on your Urbit and are served from it, so there is nothing more to download.

the usual way
let Talon do it
Download Talon, sign in, and accept the install when it offers. It pulls the apps from ~ricsul-bilwyt and keeps them updated.
by hand
if you would rather
In the dojo, |install ~ricsul-bilwyt %grubbery pulls the desk that carries Lattice, Auspex, and Calendar. Orrery and Armillary are published from the same place. Each README says how.

Privacy

The only server any of these talk to is your ship, or one you chose.

No analytics, no third-party SDKs, no telemetry. The ship-side apps speak only to the ship they run on and to the ships you share with. The clients speak only to the ship you point them at. Where a feature needs an outside service, such as Talon's AI features or the models behind Orrery and Armillary, you supply the key and it goes only to the provider you named.