{"adoption": {"forks": 298, "observed_at": "2026-08-28T04:06:09.840063+00:00", "stars": 2055}, "canonical_url": "https://ross.abutalabs.com/products/app-architecture", "card": {"archived": false, "artifact_type": "learning-resource", "description": "Sample Code of the App Architecture Book", "domain": ["mobile-development", "tutorials", "education"], "enriched": true, "function": ["developer-tools", "ui-components", "state-management"], "health_score": 20, "homepage": "https://www.objc.io/books/app-architecture", "language": "Swift", "license": null, "license_family": "other", "maturity": "maintenance", "member_repos": ["objcio/app-architecture"], "name": "objcio/app-architecture", "platform": [], "pushed_at": "2024-08-12T06:09:22+00:00", "repo": "objcio/app-architecture", "stars": 2055, "tags": ["ios-architecture", "design-patterns", "mvc", "mvvm", "elm-architecture", "sample-code", "swift", "ios", "mobile"], "topics": [], "urls": [], "use_cases": ["learn iOS app architecture patterns", "compare MVC vs MVVM implementations in Swift", "study The Elm Architecture in an iOS app", "find reference implementations of view-model coordination", "understand how to avoid massive view controllers", "explore sample Swift code for app design patterns"], "what_it_is": "Sample code repository for the objc.io 'App Architecture' book, demonstrating iOS application design patterns in Swift. It contains the Recordings sample app implemented in seven architecture variants, including MVC, MVVM+Coordinator, and The Elm Architecture.", "when_to_avoid": ["you need a production-ready framework or library to drop into your app", "you need a maintained, licensed codebase for commercial use (no license is provided)", "you work outside iOS/Swift development"], "when_to_choose": ["you are learning iOS application design patterns from the accompanying book", "you want side-by-side comparisons of multiple architectures in one sample app", "you teach or study Swift architecture techniques"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/app-architecture", "repo": "objcio/app-architecture", "role": "main", "score": 32}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:06:09.840063+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T02:57:16.666882+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2ce8e3e3987c8710a2b9cd378aab25109b757729d8d66a9232b09271fa502403", "fetched_at": "2026-08-28T04:06:09.840063+00:00", "kind": "readme", "missing": false, "url": "https://github.com/objcio/app-architecture"}, {"content_hash": "b38f065bbce51fa6648c09fd3acdfa882d6593b7e63e2a6521a9c4479b9c1015", "fetched_at": "2026-08-29T10:37:32.737348+00:00", "kind": "homepage", "missing": false, "url": "https://www.objc.io/books/app-architecture"}, {"content_hash": "c3d041f5d2371cb3afcc043c1f6678cf6b9a6edc01b9f5fa54d4c1a4c84ffdeb", "fetched_at": "2026-08-29T10:37:32.740283+00:00", "kind": "site_page", "missing": false, "url": "https://www.objc.io/about"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": ["no_releases", "no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3151, "days_push": 751, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 32, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}