varlock を Homebrew でインストール

プロジェクトリンク

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• varlock

プロジェクトの歴史

The project is built on `@env-spec`, a DSL that extends normal `.env` syntax with JSDoc-style decorator comments and function-call values. The initial `@env-spec` RFC was proposed on May 13, 2025 by maintainers Phil Millman and Theo Ephraim, describing the goal of richer validation, type coercion, sensitive-value handling, and dynamic loading while keeping the familiar `.env` format.

採用の歴史

Varlock targets the pain point left by `.env.example`: example files are safe to commit but often drift from real runtime requirements. Varlock instead promotes a committed `.env.schema` as a single source of truth, with local or environment-specific `.env.*` files supplying values.

使われ方

Typical usage starts with `varlock init`, which scans existing `.env` files and creates a root `.env.schema`. Users then run `varlock load` to validate and inspect resolved environment variables or `varlock run -- <command>` to execute a process with resolved values. The tool also ships as a standalone binary, Docker image, editor support, and plugins for secret backends such as 1Password, AWS, Azure, Google Secret Manager, HashiCorp Vault, and others.

パッケージ好きにとっての重要性

For package users, Varlock is notable as an attempt to standardize metadata around environment variables without forcing a new YAML, JSON, or TypeScript schema file. It is especially tuned for modern AI-assisted development, where agents need configuration context but should not be handed plaintext secrets.

タイムライン

• 2025-05-13: Initial `@env-spec` RFC proposed.
• 2026: Repository documents Varlock as a CLI, Docker image, VS Code extension ecosystem, and plugin host for multiple secret backends.

Related projects

• DMNO is cited by the maintainers as the predecessor whose lessons informed Varlock.
• `@env-spec` is the underlying specification and parser family used by Varlock.

ソース

• Initial @env-spec RFC: https://github.com/dmno-dev/varlock/discussions/17
• Official @env-spec overview: https://varlock.dev/env-spec/overview/
• Official GitHub repository: https://github.com/dmno-dev/varlock
• Official installation guide: https://varlock.dev/getting-started/installation/