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At Tweag we love using open source methods and research ideas to improve software quality and reliability. We are big on composable software: functional, typed, immutable. You might have seen some of our work in your own favourite technical community, or read some of our articles.

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  1. nickel nickel Public

    Better configuration for less

    Rust 2.5k 98

  2. rules_nixpkgs rules_nixpkgs Public

    Rules for importing Nixpkgs packages into Bazel.

    Starlark 311 84

  3. ormolu ormolu Public

    A formatter for Haskell source code

    Haskell 978 82

  4. jupyenv jupyenv Public

    Declarative and reproducible Jupyter environments - powered by Nix

    Nix 693 134

  5. topiary topiary Public

    Rust 634 37

  6. asterius asterius Public archive

    DEPRECATED in favor of ghc wasm backend, see https://www.tweag.io/blog/2022-11-22-wasm-backend-merged-in-ghc

    Haskell 2k 58

Repositories

Showing 10 of 401 repositories
  • nickel Public

    Better configuration for less

    tweag/nickel’s past year of commit activity
    Rust 2,504 MIT 98 125 (2 issues need help) 13 Updated Feb 21, 2025
  • FawltyDeps Public

    Python dependency checker

    tweag/FawltyDeps’s past year of commit activity
    Python 222 17 79 (3 issues need help) 5 Updated Feb 21, 2025
  • credential-helper Public

    A credential-helper framework and agent for Bazel and similar tools implementing the credential-helper spec.

    tweag/credential-helper’s past year of commit activity
    Go 14 Apache-2.0 0 1 2 Updated Feb 21, 2025
  • cardano-peras Public

    Plans and prototypes for an implementation of Ouroboros Peras on the Cardano chain

    tweag/cardano-peras’s past year of commit activity
    TeX 1 0 21 0 Updated Feb 21, 2025
  • topiary Public
    tweag/topiary’s past year of commit activity
    Rust 634 MIT 37 71 (6 issues need help) 6 Updated Feb 21, 2025
  • nickel-lang.org Public

    The website of the Nickel language

    tweag/nickel-lang.org’s past year of commit activity
    JavaScript 5 MIT 4 13 2 Updated Feb 21, 2025
  • rules_haskell Public

    Haskell rules for Bazel.

    tweag/rules_haskell’s past year of commit activity
    Starlark 268 Apache-2.0 81 174 (18 issues need help) 39 Updated Feb 21, 2025
  • tweag/pytest-automation-boilerplate’s past year of commit activity
    Python 16 MIT 3 2 0 Updated Feb 20, 2025
  • nix Public Forked from NixOS/nix

    Nix, the purely functional package manager

    tweag/nix’s past year of commit activity
    C++ 1 LGPL-2.1 1,623 0 4 Updated Feb 18, 2025
  • tf-ncl Public

    Terraform Configurations with Nickel

    tweag/tf-ncl’s past year of commit activity
    Go 72 MIT 4 8 3 Updated Feb 18, 2025