Decision Workspace
oci-spec vs zlayer-registry vs metalor
Side-by-side comparison of Rust crates
67
oci-spec
growingv0.9.0
Open Container Initiative Specifications in Rust
57
zlayer-registry
experimentalv0.11.23
OCI container registry client with blob caching
50
metalor
experimentalv0.3.2
Rust utilities for line-oriented DSL parsing, portable build cells, local Linux-provider integration, and OCI-backed Linux runtime setup
Core Metrics
| oci-spec | zlayer-registry | metalor | |
|---|---|---|---|
| Health Score | 67 | 57 | 50 |
| Total Downloads | 13.7M | 880 | 370 |
| 30d Downloads | 964.3K | 0 | 0 |
| Dependents | 653 | 85 | 8 |
| Releases | 38 | 48 | 5 |
| Last Updated | 96d ago | 13d ago | 9d ago |
| Age | 6y 12m | 3m | 1m |
Health Breakdown
oci-spec
Maintenance
13
Quality
16
Community
17
Popularity
8
Documentation
13
zlayer-registry
Maintenance
18
Quality
12
Community
11
Popularity
4
Documentation
12
metalor
Maintenance
12
Quality
13
Community
9
Popularity
3
Documentation
13
Technical Details
| oci-spec | zlayer-registry | metalor | |
|---|---|---|---|
| Version | 0.9.0 | 0.11.23 | 0.3.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 13 | 21 | 7 |
| Crate Size | 95KB | 106KB | 51KB |
| Features | 5 | 3 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | 1.85 | — |
| Owners | 3 | 1 | 1 |
Links
Quick Verdict
- •oci-spec leads with a health score of 67/100, but none of the options score above 80.
- •oci-spec is depended on by 653 crates — strongest ecosystem trust.