# Install dhall-yaml with Homebrew, Nix, pacman Convert between Dhall and YAML. Version 1.2.12 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:dhall-yaml ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install dhall-yaml ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#dhall-yaml ``` Evidence: nixpkgs package indexes: dhall-yaml from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix - pacman (92%): ```sh sudo pacman -S dhall-yaml ``` Evidence: Arch Linux sync databases: dhall-yaml from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz ## Package facts - **Package key:** brew:dhall-yaml - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.2.12 - **Source summary:** Convert between Dhall and YAML - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** BSD-3-Clause - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - dhall-to-yaml-ng (cli) - yaml-to-dhall (cli) - dhall-to-yaml-ng (alias) - yaml-to-dhall (alias) ## Dependencies - gmp ## Build dependencies - cabal-install - ghc ## Uses from macOS - libffi - ncurses ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1.2.12 - Local data: ok - Upstream repository: https://github.com/dhall-lang/dhall-haskell - info: No package-manager update timestamp was available. - info: No cached GitHub release or tag data was available. ## Project history and usage dhall-yaml is the Dhall ecosystem package for moving between typed Dhall expressions and YAML. In package-manager terms it matters because it turns Dhall from a configuration language into a practical generator for the YAML files expected by Kubernetes, CI systems, and other infrastructure tools. ### Project history The Hackage metadata for dhall-yaml 1.0.0 identifies Gabriel Gonzalez as author, gives 2019 copyright, and describes the package as both a library and executable tooling for converting between Dhall expressions and YAML. It lives in the dhall-lang/dhall-haskell repository alongside the main Dhall implementation. ### Adoption history dhall-yaml adoption follows Dhall's broader use as a programmable configuration format. Official Dhall documentation teaches generation of JSON and YAML, and its production-use page lists organizations using dhall-to-yaml in infrastructure and application configuration workflows. ### How it is used The package exposes the dhall-to-yaml-ng executable for Dhall-to-YAML conversion and yaml-to-dhall for the reverse direction, with library modules for Haskell callers. It is usually installed as a companion to Dhall when a downstream system still consumes YAML. ### Why package nerds care For package nerds, dhall-yaml is the adapter layer that lets Dhall compete with hand-written YAML without requiring the target ecosystem to understand Dhall. It is small, specialized, and valuable mostly because YAML is everywhere and typed configuration is not. ### Timeline - 2019: dhall-yaml 1.0.0 appears on Hackage with dhall-to-yaml-ng and yaml-to-dhall executables. - 2026: Official Dhall documentation still presents JSON/YAML generation as a core getting-started workflow. ### Related projects - dhall provides the core language and interpreter. - dhall-json provides related JSON conversion tooling in the same ecosystem. ### Sources - - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** dhall-yaml - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - dhall-yaml: normalized package name match | nixpkgs package indexes: dhall-yaml from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix - pacman - dhall-yaml - 1.2.12-213: normalized package name match | Arch Linux sync databases: dhall-yaml from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Convert between Dhall and YAML | https://github.com/dhall-lang/dhall-haskell/tree/master/dhall-yaml ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [cabal-install](https://www.automicvault.com/pkg/brew/cabal-install/) - Build dependency declared by Homebrew. - [ghc](https://www.automicvault.com/pkg/brew/ghc/) - Build dependency declared by Homebrew. - [dhall-bash](https://www.automicvault.com/pkg/brew/dhall-bash/) - Shares the same upstream source repository. - [dhall-json](https://www.automicvault.com/pkg/brew/dhall-json/) - Shares the same upstream source repository. - [dhall-lsp-server](https://www.automicvault.com/pkg/brew/dhall-lsp-server/) - Shares the same upstream source repository. - [dhall-toml](https://www.automicvault.com/pkg/brew/dhall-toml/) - Shares the same upstream source repository. - [json2tsv](https://www.automicvault.com/pkg/brew/json2tsv/) - Shares av.db curated category or tags: cli, converter, data-conversion, developer-tools. - [remarshal](https://www.automicvault.com/pkg/brew/remarshal/) - Shares av.db curated category or tags: cli, data-conversion, developer-tools, yaml. - [ascii2binary](https://www.automicvault.com/pkg/brew/ascii2binary/) - Shares av.db curated category or tags: cli, data-conversion, developer-tools. - [butane](https://www.automicvault.com/pkg/brew/butane/) - Shares av.db curated category or tags: cli, configuration, developer-tools, yaml. - [config-file-validator](https://www.automicvault.com/pkg/brew/config-file-validator/) - Shares av.db curated category or tags: cli, configuration, developer-tools, yaml. ## Combined YAML source View the package source record on GitHub. [combined/dhall-yaml.yml](https://github.com/automic-vault/db/blob/main/combined/dhall-yaml.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph