wee-events

wee-events is a Rust event-sourcing toolkit with a compact core API, derive macros for domain modeling, and a libSQL-backed SQLite store for local and production-friendly persistence.

It is part of the wee-events family alongside the original wee-events project and wee-events-go.

Features

• Compact event-sourcing core: aggregate, event, command, renderer, and store primitives.
• Typed identifiers: dedicated types for aggregate IDs, event IDs, revisions, and names.
• Derive macros: Command and DomainEvent derives generate consistent names from enums.
• In-memory store: useful for tests and lightweight workflows.
• SQLite store: append-only event persistence with document storage and projection helpers.
• Store conformance tests: shared test support for event store implementations.

Crates

• crates/wee-events: core types, traits, renderer support, and an in-memory store
• crates/wee-events-macros: derive macros for Command and DomainEvent
• crates/wee-events-sqlite: a libSQL-backed SQLite event store plus document and projection helpers

crates/
  wee-events/
  wee-events-macros/
  wee-events-sqlite/

Development

mise is recommended for tool setup.

mise install
mise exec -- just         # Show available commands
mise exec -- just check   # fmt-check, cargo check, clippy, and tests
mise exec -- just fmt     # Format the workspace

If you prefer to run Cargo directly, use the same commands through mise exec --.

The check recipe runs:

• cargo fmt --all -- --check
• cargo check --workspace --all-targets --all-features
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo test --workspace --all-features