{"adoption": {"forks": 446, "observed_at": "2026-08-28T04:07:02.734142+00:00", "stars": 2587}, "canonical_url": "https://ross.abutalabs.com/products/etar-calendar", "card": {"archived": false, "artifact_type": "application", "description": "Android open source calendar", "domain": ["developer-tools", "android-tools", "privacy", "cross-platform"], "enriched": true, "function": ["gui", "internationalization", "file-system"], "health_score": 99, "homepage": "https://f-droid.org/packages/ws.xsoh.etar/", "language": "Java", "license": "GPL-3.0", "license_family": "copyleft", "maturity": "active", "member_repos": ["Etar-Group/Etar-Calendar"], "name": "Etar-Group/Etar-Calendar", "platform": [], "pushed_at": "2026-08-23T01:37:56+00:00", "repo": "Etar-Group/Etar-Calendar", "stars": 2587, "tags": ["calendar", "material-design", "offline-calendar", "ics-import-export", "agenda-widget", "open-source", "android", "mobile"], "topics": ["calendar", "android", "material-design"], "urls": [], "use_cases": ["manage calendar events on android without google apps", "use an offline calendar stored only on my phone", "view month week day and agenda views in a material design calendar", "import and export calendars via ics files", "sync my calendar to a self-hosted caldav server", "use a privacy-friendly open source calendar app from f-droid", "add an agenda widget to my android home screen"], "what_it_is": "Etar Calendar is an open-source, Material Design calendar application for Android, built as an enhanced fork of the AOSP Calendar. It supports month, week, day, and agenda views, offline calendars, and works with any calendar provider synced to the device.", "when_to_avoid": ["you need built-in CalDAV or Google Calendar sync without a separate sync app", "you rely heavily on stable ICS import, which has known bugs", "you need a calendar for iOS, desktop, or web platforms"], "when_to_choose": ["you want a free, open-source, privacy-respecting Android calendar", "you need offline calendars or sync via third-party CalDAV clients like DAVx5", "you want a Material Design calendar with dark/light themes and multilingual UI", "you want to contribute to or customize your calendar app"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/etar-calendar", "repo": "Etar-Group/Etar-Calendar", "role": "main", "score": 94}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:07:02.734142+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T02:22:24.702901+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4de7a1330371246101abfe9e619852fa6da5363175a25c62ba99b31e18ef7151", "fetched_at": "2026-08-28T04:07:02.734142+00:00", "kind": "readme", "missing": false, "url": "https://github.com/Etar-Group/Etar-Calendar"}, {"content_hash": "2e72a6c0990cf187cbacdf69794cbe3841e3e49f26c0b1de16ff42539f4996bd", "fetched_at": "2026-08-29T10:04:47.549588+00:00", "kind": "homepage", "missing": false, "url": "https://f-droid.org/packages/ws.xsoh.etar/"}, {"content_hash": "a2f2e12e86351a57a3d5647435e982f8c98e0f57e889ea7dc5667cbd1748e75e", "fetched_at": "2026-08-29T10:04:47.552418+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/docs"}, {"content_hash": "fe82affcffb2bd9cbae41b2c8a175b5e2928a271d0f999f5acec462dda1a5f8d", "fetched_at": "2026-08-29T10:04:47.554508+00:00", "kind": "site_page", "missing": false, "url": "https://f-droid.org/en/about"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 83}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4016, "days_push": 11, "days_rel": 37, "gap_med": 45, "n_releases_24m": 10}, "score": 94, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}