What is Buck2?
Buck2 is a successor to the original Buck build system designed for fast, hermetic compilation of multi-language projects. It enforces strict dependency tracking to prevent common build errors and supports seamless interoperation between different programming languages like Python, OCaml, and Rust.
Integrations (4)
Independently observed- BuildBarn
- BuildBuddy
- EngFlow
- NativeLink
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Buck2 alternatives
Other monorepo tools we track, ranked by the same independent score.
Compare Buck2
Side by side against other monorepo tools, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Buck2, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Development activity | 63 | 0.09 | 5.9 | ✓ |
| Release cadence | 91 | 0.05 | 4.7 | ✓ |
| Stars | 69 | 0.03 | 1.8 | ✓ |
| Integrations | 20 | 0.07 | 1.4 | ✓ |
| Capabilities | 0 | 0.08 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | ✓ |
| Security posture | 0 | 0.07 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-08-26 · 65% |
Adoption
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 4 | mediumsource · 2026-08-19 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Rust | highsource · 2026-08-26 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-08-26 · 95% |
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=pagable_storage&per_page=100 · Last 12m: 0 | highsource · 2026-08-26 · 90% |