{"adoption": {"forks": 573, "observed_at": "2026-08-28T04:09:29.193536+00:00", "stars": 5755}, "canonical_url": "https://ross.abutalabs.com/products/componentkit", "card": {"archived": false, "artifact_type": "framework", "description": "A React-inspired view framework for iOS.", "domain": ["mobile-development", "frontend", "web-development"], "enriched": true, "function": ["ui-components", "frontend-framework", "animation"], "health_score": 20, "homepage": "http://www.componentkit.org/", "language": "Objective-C++", "license": "NOASSERTION", "license_family": "other", "maturity": "maintenance", "member_repos": ["facebook/componentkit"], "name": "facebook/componentkit", "platform": ["cpp"], "pushed_at": "2024-01-16T14:37:39+00:00", "repo": "facebook/componentkit", "stars": 5755, "tags": ["ios", "objective-c", "declarative-ui", "react-inspired", "uikit", "yoga-layout", "facebook", "view-recycling", "asynchronous-layout", "swift", "mobile"], "topics": [], "urls": [], "use_cases": ["build declarative iOS UIs inspired by React", "improve scroll performance in complex iOS feeds", "reduce view hierarchy depth and memory usage on iOS", "perform layout off the main UI thread", "build highly recyclable collection view feeds", "port React-style component thinking to native iOS"], "what_it_is": "ComponentKit is an Objective-C++ view framework for iOS, heavily inspired by React, that takes a functional, declarative approach to building UI. It powers Facebook's News Feed, offering asynchronous layout, flatter view hierarchies via Yoga, and fine-grained view recycling for scroll performance.", "when_to_avoid": ["starting a small or simple iOS app where SwiftUI suffices", "your team is uncomfortable with Objective-C++ and C++", "you need a rapidly evolving framework with active community development", "you target platforms other than iOS"], "when_to_choose": ["building large, scroll-heavy iOS apps like feeds or timelines", "you want declarative, immutable-input UI with async layout", "your team values flat view hierarchies and fine-grained recycling", "you're already in the Facebook/Instagram iOS ecosystem"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/componentkit", "repo": "facebook/componentkit", "role": "main", "score": 23}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:09:29.193536+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T17:53:16.679793+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "aab154822ff64c916415407ab93680316d8cefd57080041d269a47eaa53fe433", "fetched_at": "2026-08-28T04:09:29.193536+00:00", "kind": "readme", "missing": false, "url": "https://github.com/facebook/componentkit"}, {"content_hash": "1131bc53d20295f641c3d666c21112452024ac38c9d88eeeee204d9df465eaa5", "fetched_at": "2026-08-29T08:48:36.310146+00:00", "kind": "homepage", "missing": false, "url": "http://www.componentkit.org/"}, {"content_hash": "e31bb785fedf61b4883908b3a14296c37f86c34d37cdc71ff9fa947be8497bf2", "fetched_at": "2026-08-29T08:48:36.318920+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/getting-started"}, {"content_hash": "537c2f4b08ad4190f378c3ba6c5e9ec9f56a6bab8af657110adf2553c71ad481", "fetched_at": "2026-08-29T08:48:36.320937+00:00", "kind": "site_page", "missing": false, "url": "https://componentkit.org/docs/infrastructure/component-hosting-view"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4184, "days_push": 960, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 23, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}