Decision Workspace
kithara-events vs rt-events vs registry-io
Side-by-side comparison of Rust crates
53
kithara-events
experimentalv0.0.1-alpha4
Hierarchical event bus for the audio pipeline.
42
rt-events
experimentalv0.0.1
Microsecond pub/sub. A couple of Vecs. Four functions.
59
registry-io
experimentalv1.0.0
High-performance event/callback registry for Rust. Sync-first with optional async. Lock-free reads, zero-allocation hot path, sub-50ns notify target. Designed as the foundation primitive for portfolio crates needing fast in-process notification.
Core Metrics
| kithara-events | rt-events | registry-io | |
|---|---|---|---|
| Health Score | 53 | 42 | 59 |
| Total Downloads | 399 | 213 | 138 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 36 | 0 | 2 |
| Releases | 4 | 1 | 7 |
| Last Updated | 12d ago | 86d ago | 55d ago |
| Age | 1m | 2m | 1m |
Health Breakdown
kithara-events
Maintenance
15
Quality
16
Community
9
Popularity
3
Documentation
10
rt-events
Maintenance
8
Quality
14
Community
5
Popularity
3
Documentation
12
registry-io
Maintenance
16
Quality
18
Community
7
Popularity
3
Documentation
15
Technical Details
| kithara-events | rt-events | registry-io | |
|---|---|---|---|
| Version | 0.0.1-alpha4 | 0.0.1 | 1.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 11 | 1 | 6 |
| Crate Size | 43KB | 19KB | 130KB |
| Features | 13 | 0 | 7 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.63 | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •registry-io leads with a health score of 59/100, but none of the options score above 80.
- •kithara-events has the most downloads (399), suggesting wider adoption.
- •kithara-events, rt-events are pre-1.0 — API may change.