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238 Stars 28 Forks MIT License 2.3K Commits 55 Opened issues


⚛️ The Stremio Core: types, addon system, UI models, core logic

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Stremio - the next generation media center

Stremio is a full-featured media center designed to help you organize and stream your favorite videos, movies and TV series. It will notify you for new episodes / movies, and allow you to find new content through Discover.

Stremio allows, using it's Add-ons system, to play movies, TV series and channels instantly.


is a rust crate that's designed to contain all the reusable logic between Stremio versions.


  • Flexibility - can be integrated into existing code bases, across the entire stack, and in different paradigms
    • use case:
      can be used by add-ons
    • use case: can be used with existing user authentication as an addition to an existing app
    • use case: can use the
      model to manage the user authentication/addons, using it as a backbone to the entire Stremio app
  • Emphasis on correctness
  • No cruft / legacy - not burdened by obsolete decisions & solutions


  • types
  • addon_transport
    - handles communication with add-ons, implements legacy protocol adapter
  • state_types
    : types that describe application state; inspired by the Elm architecture
    • Effects and Update traits
    • runtime
      : helps using
      in an application by handling the effects automatically
    • environment
      : a trait describes the environment (fetch, storage)
    • msg
      : messages: actions, events
    • models
      : all stateful models, such as
      (handling user authentication, add-ons),
      , etc.

Also see: * *

cargo clippy
cargo fmt

Optimizing WASM output

WASM output binary can get large, especially if we derive Serialize/Deserialize in places we don't need to

We can optimize it by running twiggy:

twiggy top ..._bg.wasm
and seeing what the biggest code size offenders are

Adding new actions

Defining actions and what middleware requests they should trigger is defined in


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