Apero — Pure utility library for Elixir (no shell execution).

Provides domain-specific tools organised into independent modules behind a consistent {:ok, result} | {:error, reason} interface.

What's in Apero

These modules are pure Elixir/Erlang with no shell execution dependency:

Security

• Apero.Crypto — hashing, AES encryption, key and password generation
• Apero.Crypto.Hash — SHA-256, SHA-512, MD5, HMAC
• Apero.Crypto.Cipher — AES-256-GCM, ChaCha20-Poly1305, AES-256-CTR streaming
• Apero.Crypto.Key — PBKDF2, Argon2id, ECDH, RSA key generation
• Apero.Crypto.Random — key generation, random hex/token/password, secure_compare

Environment

• Apero.Env — environment variable management and .env files
• Apero.Conf — config file validation, linting and formatting

Cache

• Apero.Cache — unified cache interface with ETS adapter

System (pure subset)

• Apero.OS — OS type detection and hostname (pure Erlang)
• Apero.Proc — command availability, VM introspection (pure Elixir)

File & Path

• Apero.File — file/path operations, atomic writes, temp resources, locking
• Apero.File.Path — path operations (copy, move, delete, glob, etc.)
• Apero.File.IO — I/O operations (atomic writes, checksums, temp resources, locking)
• Apero.File.Tree — ASCII tree generation and printing
• Apero.File.Watcher — file system watching via GenServer

Retry

• Apero.Retry — configurable retry with backoff

What moved to Trebejo

Shell-based modules moved to Trebejo v1.0.0:

• Trebejo.Docker, Trebejo.Git, Trebejo.SSH, Trebejo.Kubernetes
• Trebejo.Compress, Trebejo.Network, Trebejo.File.IO (run_cmd based)
• Trebejo.OS (arch, kernel, memory, CPU — shell-based)
• Trebejo.Proc (ps, kill, lsof, fuser, logs — shell-based)
• Trebejo.File (watch/unwatch — depends on Arrea.WorkerSupervisor)