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📺 Roku app sign-in (Jellyfin)

ROKU · MOONFIN

Start watching.

Add the free Moonfin app, then use your Jellyfin account.

Use the Jellyfin username and password from Cruv. Need an account? Ask Cruv on Discord (active members).

1 Install Moonfin

On Roku, open the Streaming Store, search for Moonfin, and add it.

Moonfin in the Roku store →

2 Add Blackbeard’s Vault

Open Moonfin and choose Enter Server URL. Enter the address below, then choose Connect.

COPY THIS SERVER ADDRESS

https://jellyfin.blackbeardsvault.com

Keep the s in https://
The address starts with https://, not http://. Copy the whole address exactly.

3 Sign in

If you see a code, open the Password tab. Select your profile or type your Jellyfin username, enter your password, and choose Sign In.

Your username is case-sensitive
Match the capital and lowercase letters exactly as Cruv sent them. Use your Jellyfin username, not your email.

You’re ready to watch.

Choose Skip if Moonfin asks about appearance. Pick a movie or episode and press Play.

Help when you need it

Use another device to sign in

Quick Connect lets an already signed-in phone or computer approve the device you’re setting up. Use it when your app shows a Quick Connect code.

  1. Keep the code visible on the new device.
  2. On a phone or computer, open Blackbeard’s Vault Jellyfin and sign in to the same Jellyfin account. Match your username’s capital and lowercase letters exactly.
  3. Open your user/profile menu, choose Quick Connect, enter the new device’s code, and confirm.

If Quick Connect is unavailable, use password sign-in on the new device. A local app PIN is a different optional setting.

Something not working?
  • Can’t connect? Check the s in https:// and copy the full server address again. Don’t add a port number.
  • Can’t sign in? Match every capital and lowercase letter in your username. Use your Jellyfin account, not your email or an Emby login. Remove accidental spaces.
  • Video or sound problem? Close and reopen the app, check for an update, and try another title.

Still stuck? Message @Captain Cruv on Discord. Include your device, the app name, and a picture or the exact wording of the error. Never send your password.

Moonfin unavailable or not working?

Install the official Jellyfin channel from Roku’s Streaming Store. Add the same full server address and use your Jellyfin username and password, or Quick Connect when offered.

App details and sources

Moonfin is free and does not need Developer Mode when installed from the store. The current project requires Roku OS 9.1 or later. Availability can differ by device and region.

Moonfin Roku setup · Roku app and requirements

Reviewed 17 October 2026. App menus and store availability can change.