Decision Workspace
conquer-once vs ndd vs lazyinit
Side-by-side comparison of Rust crates
52
conquer-once
growingv0.4.0
Synchronization primitives for lazy and one-time initialization
47
ndd
experimentalv0.2.12
Non De-Duplicated cell. For statics guaranteed not to share memory with any other static/const.
60
lazyinit
growingv0.2.2
Initialize a static value lazily.
Core Metrics
| conquer-once | ndd | lazyinit | |
|---|---|---|---|
| Health Score | 52 | 47 | 60 |
| Total Downloads | 1.2M | 4.3K | 100.6K |
| 30d Downloads | 78.3K | 26 | 9.4K |
| Dependents | 185 | 3 | 171 |
| Releases | 9 | 18 | 4 |
| Last Updated | 1084d ago | 158d ago | 290d ago |
| Age | 6y 7m | 8m | 1y 8m |
Health Breakdown
conquer-once
Maintenance
4
Quality
17
Community
12
Popularity
7
Documentation
12
ndd
Maintenance
12
Quality
9
Community
10
Popularity
4
Documentation
12
lazyinit
Maintenance
6
Quality
16
Community
17
Popularity
6
Documentation
15
Technical Details
| conquer-once | ndd | lazyinit | |
|---|---|---|---|
| Version | 0.4.0 | 0.2.12 | 0.2.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT/Apache-2.0 | BSD-2-Clause OR Apache-2.0 OR MIT | GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0 |
| Dependencies | 1 | 0 | 0 |
| Crate Size | 16KB | 18KB | 5KB |
| Features | 2 | 0 | 0 |
| Yanked % | 0.0% | 55.6% | 0.0% |
| Edition | 2018 | 2024 | 2021 |
| MSRV | — | 1.86 | 1.56.1 |
| Owners | 1 | 2 | 2 (team) |
Links
Quick Verdict
- •lazyinit leads with a health score of 60/100, but none of the options score above 80.
- •conquer-once has the most downloads (1.2M), suggesting wider adoption.
- •conquer-once is depended on by 185 crates — strongest ecosystem trust.
- •⚠ conquer-once has not been updated in over a year.