namely/chief-of-state
Chief of State is an event-sourced service that manages entity state using Akka Cluster Sharding and Akka Persistence. It exposes a gRPC interface for remote commands and events, while handling database schema migrations and read-side processing via a distributed handler architecture. The system is configured through structured configuration files and supports distributed tracing via OpenTelemetry.
41.6
Weak · 4 August 2026
3.5k
lines of production code
Scala
primary language
2
bus factor · 18 authors in all
3
measurements over time
How it got here
2020 · Initial project structure and core implementation
This period established the foundational architecture for the Chief of State service, including the multi-module build system, gRPC interfaces, and event-sourced core logic. It also introduced comprehensive test coverage and configuration models to support the new service implementation.
11 changes
2021 · database migration framework and read-side refactoring
This period focused on implementing a comprehensive database migration framework for Chief of State, introducing versioned schema upgrades for journals, snapshots, and read-side offsets. Concurrently, the read-side processing architecture was refactored to support remote handlers via gRPC, enabling distributed state updates.
15 changes
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About this page
- The description of this project is derived from its own commit history, not from its README.
- The score is its highest published measurement, taken on 4 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
- Measured at commit 67a76d096c — the exact code this score is about.
- Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.