Decision Workspace
gnu-units-sys vs lean-rs-sys vs simavr-ffi
Side-by-side comparison of Rust crates
50
gnu-units-sys
experimentalv2.27.0
Raw FFI bindings to the GNU units C library
62
lean-rs-sys
experimentalv0.1.10
Raw FFI bindings for the Lean 4 C ABI. See `lean-rs` for the safe front door.
52
simavr-ffi
stablev1.2.5
Low-level bindings to simavr
Core Metrics
| gnu-units-sys | lean-rs-sys | simavr-ffi | |
|---|---|---|---|
| Health Score | 50 | 62 | 52 |
| Total Downloads | 17 | 298 | 12.0K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 1 | 39 | 13 |
| Releases | 1 | 10 | 12 |
| Last Updated | 4d ago | today | 24d ago |
| Age | 4d | 7d | 3y 11m |
Health Breakdown
gnu-units-sys
Maintenance
13
Quality
17
Community
6
Popularity
1
Documentation
13
lean-rs-sys
Maintenance
17
Quality
17
Community
10
Popularity
3
Documentation
15
simavr-ffi
Maintenance
16
Quality
15
Community
6
Popularity
5
Documentation
10
Technical Details
| gnu-units-sys | lean-rs-sys | simavr-ffi | |
|---|---|---|---|
| Version | 2.27.0 | 0.1.10 | 1.2.5 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | GPL-3.0-or-later | MIT OR Apache-2.0 | MIT |
| Dependencies | 2 | 1 | 5 |
| Crate Size | 274KB | 40KB | 3.9MB |
| Features | 3 | 5 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | — | 1.91 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •lean-rs-sys leads with a health score of 62/100, but none of the options score above 80.
- •simavr-ffi has the most downloads (12.0K), suggesting wider adoption.
- •lean-rs-sys is pre-1.0 — API may change.