> ## Documentation Index > Fetch the complete documentation index at: https://rakumux.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # A Fly Sprite > Run sessions on your own Fly.io Sprite, a Linux VM that pauses when idle, straight from Rakumux. A [Sprite](https://sprites.dev) is a Linux VM on Fly.io with 100 GB of persistent storage and coding agents (Claude Code, Codex and more) already installed. It **pauses when nothing is happening** and wakes when you connect, so you pay mostly for the time it works. Rakumux sets one up for you and runs sessions on it, listed with your other sessions. ## Before you start * **A Sprites account.** Sign up at [sprites.dev](https://sprites.dev) with your Fly.io account and add a card to your organization (new organizations get trial credit). The Sprite is yours: Fly.io bills you directly. * **A Sprites token.** Make one at [sprites.dev/account](https://sprites.dev/account). If you've signed in with the [`sprite` CLI](https://docs.fly.io/sprites/cli/installation) on this computer, Rakumux can use its token instead. ## Run a session on your Sprite **1. Turn on the Sprite for a folder** In Rakumux mode, press `N` (or click `☁ Sprite` at the right of **+ New session**). New sessions in the current folder now run on your Sprite; `N` again brings them back to this machine. **2. Start a session** Press `n`. The first time, Rakumux asks for your Sprites token (or offers the one it found), then sets the Sprite up, showing each step: it creates a Sprite named `rakumux`, installs Rakumux there and connects. After that, `n` starts a session there in about a second. **3. Work in it** The session has `☁` before its name and is listed under the folder you started it from. Going in is its live terminal on the Sprite. It runs in a folder of the same name in the Sprite's home folder, and for a git repository `git clone .` is typed there for you to run. Sign in to your agents on the Sprite the first time. From the command line: ```bash theme={null} rakumux sprite connect # set up the Sprite (--token, or one found on this computer) rakumux new --sprite # a session on it, for this folder rakumux sprite status # which Sprite, and whether it's reachable rakumux sprite disconnect # forget it here and revoke its feed access; the Sprite and its files stay on Fly.io ``` ## In the Agent feed Sign in to your Rakumux account (`rakumux account login`) before you connect the Sprite, and with the [Agent feed](https://rakumux.com/docs/account/feed.md) on, its sessions take part like this machine's: what their agents say, their chats and the Sprite's sessions show on rakumux.com under the Sprite's name. When you connect, Rakumux asks whether replies you write on rakumux.com, or in the feed here, should be typed into the Sprite's agents. A reply to a paused Sprite wakes it. The Sprite never gets your sign-in. It gets a credential of its own that reaches only what a machine does in the feed: it can't read your other machines' chats or change your settings. Revoke it under **Features** on rakumux.com, or with `rakumux sprite disconnect`; it stops working within 15 minutes. Signed out when you connected? Sign in and run `rakumux sprite connect` again. ## Pausing A Sprite pauses about 30 seconds after the last connection to it closes, freezing whatever runs there. Rakumux keeps it running **while an agent works** in one of its sessions, so a long task finishes with your laptop closed; once no agent is working, it lets the Sprite pause. Open one of its sessions and the Sprite wakes in about a second. After a long pause its programs stop; Rakumux brings the sessions back with their agents in the same conversation. Other programs, a dev server say, don't keep it running on their own. ## Good to know * **Where it runs.** Fly.io places Sprites itself; there's no region to choose. From far away (Australia, say) typing has a noticeable delay. A [Fly Machine](https://rakumux.com/docs/remote/fly-machines.md) can run in the region nearest you. * **Cost.** Sprites charge for CPU and memory while running and for the storage you use, and little while paused. See [Sprites pricing](https://fly.io/sprites). * **Access.** Rakumux serves on the Sprite's public URL, reachable only with a Rakumux token made for that Sprite. Your Sprites token stays on this computer, in `~/.rakumux/sprites.json`. * **Any machine.** Sessions of any other machine running Rakumux with [remote access](https://rakumux.com/docs/phone/remote-access.md) on can be listed here too: `rakumux machine add --token `, then `rakumux new --machine `. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.