{"adoption": {"forks": 252, "observed_at": "2026-08-28T04:07:37.633118+00:00", "stars": 3006}, "canonical_url": "https://ross.abutalabs.com/products/weld", "card": {"archived": false, "artifact_type": "library", "description": "High-performance runtime for data analytics applications", "domain": ["data-science", "analytics", "performance", "compilers", "machine-learning"], "enriched": true, "function": ["compiler", "interpreter", "machine-learning", "data-science", "benchmarking"], "health_score": 66, "homepage": "https://www.weld.rs", "language": "Rust", "license": "BSD-3-Clause", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["weld-project/weld"], "name": "weld-project/weld", "platform": ["rust", "cpp", "python"], "pushed_at": "2026-04-13T17:23:52+00:00", "repo": "weld-project/weld", "stars": 3006, "tags": ["llvm", "intermediate-representation", "pandas", "code-generation", "jit-compilation", "data-analytics", "macos", "linux"], "topics": ["stanford", "data", "analytics", "machine-learning", "code-generation", "performance", "rust", "llvm", "pandas"], "urls": [], "use_cases": ["speed up pandas workflows that are bottlenecked by data movement", "compile and optimize multi-library analytics pipelines end to end", "accelerate machine learning preprocessing in Python", "build a JIT compiler for data analytics code", "reduce overhead when chaining NumPy/Pandas operations"], "what_it_is": "Weld is a language and high-performance runtime that optimizes data-intensive analytics workflows by expressing computations in a common intermediate representation and compiling them with LLVM. It lets libraries like Pandas (via Grizzly) defer and jointly optimize across framework boundaries instead of moving data between isolated functions.", "when_to_avoid": ["you need a project with frequent updates and modern Rust/LLVM support", "your workload is small enough that data movement overhead is negligible", "you need production support for LLVM versions newer than 6.0"], "when_to_choose": ["your analytics pipeline spends most time moving data between library calls", "you want LLVM-based code generation for data-intensive workloads", "you need cross-library optimization of Pandas-like computations"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/weld", "repo": "weld-project/weld", "role": "main", "score": 57}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:07:37.633118+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T07:30:22.906993+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "17336206c8a2ccb321d59afbb702c129364270bffb466c6c0187b50edc4eaaf5", "fetched_at": "2026-08-28T04:07:37.633118+00:00", "kind": "readme", "missing": false, "url": "https://github.com/weld-project/weld"}, {"content_hash": "05521d5998cfc95a31586a17d062751d24a3041079b2fe4cf530bf4a4327b737", "fetched_at": "2026-08-29T09:45:37.326470+00:00", "kind": "homepage", "missing": false, "url": "https://www.weld.rs"}, {"content_hash": "7d5c873b9882853969c1a0f99a6ebde88269d6535154982d757e93c27faac628", "fetched_at": "2026-08-29T09:45:37.335276+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/weld"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 77, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3733, "days_push": 142, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 57, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}