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Awesome Open Source

Sofie: The Modern TV News Studio Automation System (tv-automation-server-core)

This is the "Core" application of the Sofie TV News Studio Automation System.

The Core is a Meteor/Node.JS-based web server that serves the web-GUI:s as well as handling the business logic for the Sofie TV Automation system.

System documentation can be found here: Sofie system documentation.

For developers

Gettings started, local development

Follow these instructions to start up Sofie Core in development mode. (For production deploys, see System documentation.)


  • Install Meteor
  • Install Node.js 12
  • Install Yarn
  • If on windows npm install --global windows-build-tools


git clone -b master
cd tv-automation-server-core
yarn start

Slightly more detailed start:

  1. Clone the repository (for development, it is recommended to base your work on the latest unstable release branch)

    git clone -b releaseXYZ

  2. Go into the cloned directory

    cd tv-automation-server-core

  3. Setup meteor and dependencies. (Before this, make sure your NODE_ENV environment variable is NOT set to "production"!)

    yarn install

  4. Start development mode

    yarn dev

  5. In another window, start the playout-gateway. You will need to manually restart this upon making changes

    cd tv-automation-server-core/packages/playout-gateway
    yarn buildstart

If you make any changes to the libraries inside packages, you will need to run the typescript compiler in another terminal.
cd tv-automation-server-core/packages
yarn watch # or yarn build to build just once

If you run into any issues while installing the dependencies, clone any offending packages from Git and link them using npm link. For example, for tv-automation-mos-connection library:

git clone -b master
cd tv-automation-mos-connection
npm run build
npm link
cd ../tv-automation-server-core/meteor
npm link mos-connection

Translating Sofie, add a new language

For support of various languages in the GUI, Sofie uses the i18next framework. It uses JSON-based translation files to store UI strings. In order to build a new translation file, first extract a PO template file from Sofie UI source code:

cd meteor
npm run i18n-extract-pot

Find the created template.pot file in meteor/i18n folder. Create a new PO file based on that template using a PO editor of your choice. Save it in the meteor/i18n folder using your ISO 639-1 language code of choice as the filename.

Next, modify the package.json scripts and create a new language compilations script:

"i18n-compile-json": "npm run i18n-compile-json-nb & npm run i18n-compile-json-sv & npm run i18n-compile-json-xx",
"i18n-compile-json-xx": "i18next-conv -l nb -s i18n/xx.po -t public/locales/xx/translations.json",

Then, run the compilation script:

npm run i18n-compile-json

The resulting JSON file will be placed in meteor/public/locales/xx, where it will be available to the Sofie UI for use and auto-detection.

Then submit this as a PR.

Version numbering scheme

This project does not follow semver. We believe that semver does not make sense for this system as there are so many moving parts that a majority of releases could be considered breaking in some way.

Instead of semver, the Major number gets incremented whenever we feel like Sofie has evolved enough to warrant the change. The minor number gets incremented for each iteration of the development cycle, with the digit matching the cycle number. The patch number gets incremented for patch releases as expected.

The version numbers of the blueprints-integration and server-core-integration libraries are tied to this, and as such they also do not follow semver currently. In future these may be decoupled.
The api of server-core-integration is pretty stable and rarely undergoes any breaking changes, so is ok to be mismatched. The api of blueprints-integration is rather volatile, and often has breaking changes. Because of this, we recommend matching the minor version of blueprints-integration with Sofie core. Sofie will warn if these do not match. We expect this to settle down in the future, and will review this decision when we feel it is worthwhile.

Additional information

Background image used for previewing graphical elements is based on "Sunset over dark forest" by Aliis Sinisalu: used under the Unsplash License.

The NRK logo is a registered trademark of Norsk rikskringkasting AS. The license does not grant any right to use, in any way, any trademarks, service marks or logos of Norsk rikskringkasting AS.

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