envy

Encrypted secrets, zero friction.

Local-first secret management for teams who take security seriously. No SaaS. No internet. No plaintext — ever.

brew install anguriatech/tap/envy

npm install -g @anguriatech/envy

The Problem

Every project starts with a .env file. Every .env file eventually ends up somewhere it shouldn't.

• Committed to git — accidentally or by a junior dev following a tutorial
• Pasted in Slack — "hey, can you check this config?" becomes a security incident
• Left on disk — cloned repos, CI artifacts, and Docker image layers carry your secrets forever
• Shared as plaintext — emailed, screenshot, airdropped, or typed into a Google Doc

The tools meant to solve this — hosted vaults, secrets managers, SaaS platforms — trade one risk for another: now your secrets live on someone else's server, behind their authentication, subject to their breach.

There is no good reason for production secrets to ever exist in plaintext. Envy makes that guarantee practical.

Why Envy

🔐 Zero-Trust Storage

Secrets are encrypted with AES-256-GCM before they touch the database. The database itself is encrypted with SQLCipher. The master key lives exclusively in your OS Keychain — never written to any file, never exposed to the filesystem.

Stealing your ~/.envy/vault.db gets an attacker nothing without the OS credential entry. Stealing your OS credential entry gets them nothing without the encrypted database. Defense in depth, not defense by hope.

🧠 Memory-Safe Secret Injection

envy run -- your-app decrypts secrets in RAM and passes them to your process via std::process::Command::envs(). When the process exits, the memory is zeroed. Nothing is written to disk, shell history, or environment exports.

All secret values are wrapped in Rust's Zeroizing<T> — backing memory is overwritten to zero on drop, even if the program panics.

🌿 GitOps-Native

envy encrypt produces envy.enc — a single JSON file sealed with Argon2id + AES-256-GCM. It contains no key names, no values, no project identifiers. Commit it to your public repo. Post it on Twitter. It is pure ciphertext.

envy decrypt on any machine restores your vault from the artifact. Onboarding a new team member is a git pull and one passphrase.

🔬 Pre-Encrypt Audit Trail

envy diff shows exactly what will change before you seal — additions, deletions, and modifications — with diff(1) exit codes for CI/CD gating. Values are hidden by default. --reveal requires explicit opt-in with a stderr warning.

Know exactly what you're committing to the artifact before you commit it.

🏢 Multi-Team Progressive Disclosure

Seal development, staging, and production with separate passphrases. A developer with the dev key imports their environment; production is listed as skipped — not an error, not a prompt, not an alarm. Access follows the passphrase, not a permissions UI.

🤖 CI/CD Native, Zero Config

Set ENVY_PASSPHRASE_<ENV> in your pipeline's secret store. Envy detects it and goes fully headless — no TTY, no prompts, no code changes required. Works with GitHub Actions, GitLab CI, CircleCI, Jenkins, and any shell that supports environment variables.

SOC 2 / Compliance note: Envy eliminates the most common source of secret leakage — plaintext .env files in version control, chat logs, and build artifacts. It does not replace a full secrets management platform for regulated workloads, but it is a substantial step toward auditability: every secret change is a vault write, every seal is a committed envy.enc diff.

Quickstart

Step 1 — Install and initialise

# Homebrew (macOS & Linux)
brew install anguriatech/tap/envy

# NPM (all platforms)
npm install -g @anguriatech/envy

Windows, curl, or build-from-source? See the Installation section below.

cd my-project
envy init       # creates envy.toml (safe to commit)

Step 2 — Store secrets and run your app

envy set DATABASE_URL=postgres://localhost/myapp
envy set API_KEY=sk_live_abc123

envy run -- npm run dev
# secrets injected into the child process, never written to disk

Step 3 — Seal and share with your team

# Preview what you're about to commit
envy diff
#   + API_KEY
#   + DATABASE_URL
# 2 changes: 2 added, 0 removed, 0 modified

envy encrypt      # prompts for a passphrase (or set ENVY_PASSPHRASE in CI)

git add envy.enc envy.toml
git commit -m "chore: add encrypted secrets"
git push

A teammate pulls the repo and runs envy decrypt. Done. No Slack messages, no shared spreadsheets, no plaintext ever leaving your encrypted vault.

Sync Status at a Glance

envy status tells you the state of every environment — no passphrase, no decryption.

$ envy status

+-------------+---------+------------------+----------------+
| Environment | Secrets | Last Modified    | Status         |
+=============================================================+
| development | 4       | 2 minutes ago    | ⚠ Modified     |
| production  | 3       | 3 days ago       | ✓ In Sync      |
| staging     | 2       | 1 week ago       | ✗ Never Sealed |
+-------------+---------+------------------+----------------+

Artifact: ./envy.enc  (last written: 3 days ago)
  Sealed environments: production

See Modified? Run envy diff to see exactly what changed, then envy encrypt to seal.

CI/CD Integration

# .github/workflows/deploy.yml
- name: Decrypt secrets
  env:
    ENVY_PASSPHRASE_PRODUCTION: ${{ secrets.ENVY_PASSPHRASE_PRODUCTION }}
  run: envy decrypt

# Gate on exact artifact state before deploying
- name: Assert no unsealed drift
  env:
    ENVY_PASSPHRASE_PRODUCTION: ${{ secrets.ENVY_PASSPHRASE_PRODUCTION }}
  run: |
    envy diff -e production          # exit 1 if vault ≠ artifact
    echo "✓ Artifact matches vault"

- name: Deploy
  run: envy run -e production -- ./scripts/deploy.sh

The ENVY_PASSPHRASE_<ENV> env var is the only config change required. Your application code and deploy scripts are untouched.

How It Works

Local development:

  envy.toml             ~/.envy/vault.db              OS Keyring
  (project UUID)  →     (SQLCipher-encrypted DB)  ←   (32-byte master key)
                        AES-256-GCM per-secret
                        sync_markers (sealed_at per env)

Team sync via Git:

  ~/.envy/vault.db  →[envy encrypt]→  envy.enc (Argon2id + AES-256-GCM)
                                            │
                                       git commit/push
                                            │
                    ←[envy decrypt]←  envy.enc

The Two-Key Model

| | Vault master key | Artifact passphrase | |---|---|---| | Purpose | Encrypts secrets at rest in vault.db | Encrypts envy.enc for sharing | | Stored in | OS Keychain / Secret Service (never on disk) | Not stored — entered by user or ENVY_PASSPHRASE | | Scope | Per machine, per user | Per team, per project | | Format | 32 random bytes | Human-readable string |

These keys are entirely independent. Knowing the passphrase does not help with the vault. Copying the vault without the OS credential entry is useless.

Cryptography Stack

Passphrase (user input)
    │
    ▼  Argon2id  (64 MiB memory, 3 iterations, parallelism 4)
256-bit derived key
    │
    ▼  AES-256-GCM  (random 96-bit nonce per seal)
Ciphertext + 128-bit authentication tag
    │
    ▼  base64ct  (constant-time Base64)
envy.enc  →  git commit

Argon2id is the Password Hashing Competition winner (2015). Memory-hard and side-channel resistant — GPU-based brute-force against the passphrase requires 64 MiB of RAM per attempt.

AES-256-GCM provides authenticated encryption — any modification to the ciphertext is detected before a single byte of plaintext is returned. This is what makes Progressive Disclosure safe: a wrong passphrase fails authentication silently, it never returns garbage data.

Fresh nonce per seal — re-sealing the same secrets produces different ciphertext every time. Ciphertext comparison attacks are not possible.

The envy.enc Structure

{
  "version": 1,
  "environments": {
    "development": {
      "ciphertext": "<base64>",
      "nonce":      "<base64>",
      "kdf": {
        "algorithm":    "argon2id",
        "memory_kib":   65536,
        "time_cost":    3,
        "parallelism":  4,
        "salt":         "<base64>"
      }
    }
  }
}

Every envelope is self-describing — it carries its own KDF parameters. You can decrypt any envelope without external metadata or a version registry. The environments map is a BTreeMap so JSON keys are always alphabetically ordered, producing deterministic git diff output.

Memory Safety

Every secret value travels through the codebase in zeroize::Zeroizing<String>. When the container is dropped (on function return, scope exit, or panic), the backing memory is overwritten to zero by the OS. Secret values are never stored in a plain String.

| Command | Alias | Description | |---------|-------|-------------| | envy init | — | Create envy.toml, register project in vault | | envy set KEY=VALUE [-e ENV] | — | Store or update a secret | | envy get KEY [-e ENV] | — | Print a single decrypted value to stdout | | envy list [-e ENV] | ls | List all key names (values never printed by default) | | envy rm KEY [-e ENV] | remove, unset | Delete a secret | | envy run [-e ENV] -- CMD | — | Inject secrets and run a child process | | envy migrate FILE [-e ENV] | — | Import all KEY=VALUE pairs from a .env file | | envy encrypt [-e ENV] | enc | Seal vault into envy.enc | | envy decrypt | dec | Unseal envy.enc and restore secrets | | envy export [-e ENV] [--format] | — | Print all secrets to stdout (dotenv / JSON / shell) | | envy diff [-e ENV] [--reveal] | df | Compare vault against envy.enc before encrypting | | envy status | st | Show sync status dashboard (no passphrase required) | | envy completions SHELL | — | Print shell completion script to stdout |

Output Formats

Most read commands accept --format (or -f):

| Format | Description | |--------|-------------| | table | Human-readable (default) | | json | Machine-readable JSON | | dotenv | KEY=value pairs | | shell | export KEY='value' — safe for eval $(...) |

envy diff — the pre-encrypt review loop

# Table output (key names only, colored)
envy diff [-e ENV]

# With values (stderr warning emitted first)
envy diff [-e ENV] --reveal

# JSON for scripts — old_value/new_value absent without --reveal
envy diff [-e ENV] --format json

Exit codes for envy diff: 0 = no differences, 1 = differences found, 2+ = error.

Shell Autocompletion

envy completions bash   >> ~/.bash_completion
envy completions zsh    >  ~/.zfunc/_envy      # then: autoload -Uz compinit && compinit
envy completions fish   >  ~/.config/fish/completions/envy.fish
envy completions powershell >> $PROFILE

Legacy Migration

envy migrate .env              # import development secrets
envy migrate .env.staging -e staging
envy list                      # verify
rm .env .env.staging
echo '.env*' >> .gitignore

Multi-Environment with Separate Passphrases

envy enc -e development    # dev passphrase
envy enc -e staging        # staging passphrase
envy enc -e production     # prod passphrase (restricted)

# Smart Merge: each seal preserves the other envelopes untouched
git add envy.enc && git commit -m "chore: rotate secrets"

# Junior dev — has only the dev key
envy decrypt
#   ✓  development   (4 secrets upserted)
#   ⚠  production    skipped — different passphrase or key
# exit code: 0  ← partial access is success

| Code | Meaning | |------|---------| | 0 | Success; partial decrypt (≥ 1 env imported); envy diff — no differences | | 1 | Not found (manifest, secret, envy.enc); zero envs imported; envy diff — differences found | | 2 | Invalid input (key name, assignment format, empty or wrong passphrase) | | 3 | Initialisation conflict; environment not found in vault or artifact | | 4 | Vault or crypto failure | | 5 | envy.enc unreadable (malformed JSON or unsupported schema version) | | 127 | Child binary not found (envy run) | | N | Child process exit code (proxied exactly by envy run) |

Note: envy diff follows the diff(1) convention — exit 1 means "differences exist", not "an error occurred". This makes it safe to use in shell pipelines with || without masking real errors.

Installation

Homebrew (macOS & Linux)

brew install anguriatech/tap/envy

NPM (Cross-platform wrapper)

npm install -g @anguriatech/envy
# or run without installing:
npx @anguriatech/envy

macOS & Linux (shell installer)

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/anguriatech/envy/releases/latest/download/envy-installer.sh | sh

Windows (PowerShell)

irm https://github.com/anguriatech/envy/releases/latest/download/envy-installer.ps1 | iex

Build from source (requires Rust 1.85+)

git clone https://github.com/anguriatech/envy.git
cd envy && cargo install --path .

Roadmap

Envy has completed Phase 1 (encrypted local vault), Phase 2 (GitOps sync & CI/CD), and Phase 2.x (multi-env encrypt, output formats, sync status, pre-encrypt diff).

Phase 3 — Ecosystem & GUI: An official VS Code Extension to make secret management visual and seamless, without leaving the editor.

Built with Rust, SQLCipher, AES-256-GCM, and Argon2id by Anguria Tech. MIT License — audit the code, fork it, ship it.