{"adoption": {"forks": 349, "observed_at": "2026-08-28T04:03:35.126346+00:00", "stars": 1099}, "canonical_url": "https://ross.abutalabs.com/products/shim", "card": {"archived": false, "artifact_type": "library", "description": "UEFI shim loader", "domain": ["security", "operating-systems", "developer-tools"], "enriched": true, "function": ["security", "cryptography"], "health_score": 91, "homepage": null, "language": "C", "license": "NOASSERTION", "license_family": "other", "maturity": "active", "member_repos": ["rhboot/shim"], "name": "rhboot/shim", "platform": ["windows", "cross-platform"], "pushed_at": "2026-07-27T18:18:30+00:00", "repo": "rhboot/shim", "stars": 1099, "tags": ["uefi", "secure-boot", "bootloader", "firmware", "tpm", "efi-application", "linux"], "topics": [], "urls": [], "use_cases": ["boot linux with secure boot enabled", "chainload grub from uefi secure boot", "sign a custom bootloader for secure boot", "load unified kernel images with secure boot", "measure boot components into tpm pcrs"], "what_it_is": "shim is a small first-stage UEFI bootloader written in C that loads and validates a second-stage bootloader, enabling Secure Boot on Linux systems. It verifies binaries against built-in vendor certificates, supports denylists (DBX/MOKX/SBAT), and extends TPM PCRs with loaded target digests.", "when_to_avoid": ["your system does not use uefi (legacy bios boot)", "you do not need secure boot and can boot your bootloader directly", "you need a full boot manager rather than a first-stage loader"], "when_to_choose": ["you need to boot an unsigned or third-party bootloader while uefi secure boot is enabled", "you are building a linux distribution that must work with microsoft's secure boot signing", "you want tpm-based measured boot for disk encryption or attestation"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/shim", "repo": "rhboot/shim", "role": "main", "score": 69}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:03:35.126346+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T06:46:04.834790+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20a7fca83bde134a785833470e04add6d240661d843e9fb220f54f601748a040", "fetched_at": "2026-08-28T04:03:35.126346+00:00", "kind": "readme", "missing": false, "url": "https://github.com/rhboot/shim"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 94, "longevity": 100, "rhythm": 18}, "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": 5257, "days_push": 37, "days_rel": 385, "gap_med": 147, "n_releases_24m": 2}, "score": 69, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}