Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-19 02:08 UTC

ryan4yin / nixos-and-flakes-book

:hammer_and_wrench: :heart: Want to know NixOS & Flakes in detail? Looking for a beginner-friendly tutorial? Then you've come to the right place! 想要学习使用 NixOS 与 Flakes 吗？在寻找一份新手友好的教程？那你可来对地方了！

TypeScript · Nix · TypstCC-BY-SA-4.0★ 3,323 stars⑂ 157 forkssince Jun 2023View on GitHub ↗
KindNetwork servicehow this is determined
#linux#nix#nixos#nix-flake#nix-flakes#book#tutorial#dotfiles#flakes

ryan4yin/nixos-and-flakes-book holds a health index of 69 out of 100, placing it in the Good band. It scores highest on Community & Adoption (76/100) and lowest on Security (44/100). It was last updated 11 days ago. A single contributor accounts for most of its recent work.

69
overall / 100
Good

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

69
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 62 is calibrated to 69 on the published index scale (record calibration 2026-08-02).

Ownership

ryan4yin | 二花Personal account
1,208 followers129 public repossince Sep 2016@coding-and-typing

This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

74Good · 21% of overall

Development activity

64Moderate
How it's scored
28.8/36Push recency — last push 11 days ago
10.4/36Commit cadence — 15/52 weeks with commits
14.6/18Commit volume — 41 commits in the last year
10/10OpenSSF Scorecard: Maintained — 23 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year41
human_commit_share1
days_since_last_push11
active_weeks_last_year15

Release discipline

90Excellent
How it's scored
27/27Ships releases — 47 releases published
36/36Release recency — latest release 11 days ago
27/27Release cadence — a release every ~43.7 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count47
latest_release_tagv0.9.1
releases_from_tagsno
days_since_latest_release11
mean_days_between_releases43.7

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

76Good · 17% of overall

Popularity & adoption

82Excellent
How it's scored
57.1/60Stars — 3,323 stars
18.3/25Forks — 157 forks
6.5/15Watchers — 16 watchers
Inputs used
forks157
stars3,323
watchers16
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

70Good
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (CC-BY-SA-4.0)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

62Moderate · 23% of overall

Maintainer resilience (bus factor)

36Weak
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
3.5/22.5Commit distribution — top contributor authored 84% of commits
13.5/13.5Contributor breadth — 86 contributors
10/10OpenSSF Scorecard: Contributors — project has 6 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled86
top_contributor_share0.844

Issue & PR responsiveness

84Excellent
How it's scored
39.7/42Issue resolution — 94% of issues closed
28.4/30PR acceptance — 163/172 decided PRs merged
13/13Newcomer PR acceptance — 1/1 first-time contributors' PRs merged in 30d
3/15OpenSSF Scorecard: Code-Review — Found 6/24 approved changesets -- score normalized to 2
Inputs used
merged_prs163
open_issues3
closed_issues52
prs_merged_7d0
prs_decided_7d0
prs_merged_30d14
prs_decided_30d14
issue_closed_ratio0.945
closed_unmerged_prs9
first_time_authors_30d1
first_time_prs_merged_30d1
first_time_prs_decided_30d1

Ownership & stewardship

72Good
How it's scored
10/30Ownership backing — personal (user) account
0/20Verified domain — not applicable to user accounts
22.2/25Owner reach — 1,208 followers of ryan4yin
25/25Track record — 129 public repos, account ~10 yr old
Inputs used
followers1,208
owner_typeUser
is_verified—
owner_loginryan4yin
public_repos129
account_age_days3,678
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Engineering Quality

Are baseline engineering and documentation practices in place?

50Moderate · 19% of overall

Engineering practices

24At Risk
How it's scored
24/24CI workflows — 1 workflow(s)
0/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — 2 out of 23 merged PRs checked by a CI test -- score normalized to 0
Inputs used
has_ciyes
has_testsno
has_editorconfigno
has_linter_configno
has_precommit_configno

Documentation

90Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://nixos-and-flakes.thiscute.world
10/10Repository description
10/10Topics — 9 topics
0/10Wiki
Inputs used
topicslinux, nix, nixos, nix-flake, nix-flakes, book, tutorial, dotfiles, flakes
has_wikino
homepagehttps://nixos-and-flakes.thiscute.world
docs_sitehttps://nixos-and-flakes.thiscute.world
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

44Weak · 16% of overall

Security posture

44Weak
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
0/2.5CI-Tests — 2 out of 23 merged PRs checked by a CI test -- score normalized to 0
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
1.5/7.5Code-Review — Found 6/24 approved changesets -- score normalized to 2
2.5/2.5Contributors — project has 6 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 23 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — Project has not signed or included provenance with any releases.
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
1.5/7.5Vulnerabilities — 8 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate4.4
Excluded from scoring (no data or not applicable): Branch-Protection, Packaging. Remaining weights renormalized.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

58Moderate · 4% of overall

Agent context & guidance

85Excellent
How it's scored
45/45Agent instructions — AGENTS.md
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 99 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.99
agent_instruction_filesAGENTS.md
agent_instruction_max_bytes1,714

Verify loop (build / test / typecheck)

21At Risk
How it's scored
0/18One-command bootstrap
0/22Automated tests
0/11Lint / format config
11/11Static type checking — TypeScript (statically typed)
10/10Reproducible environment — Nix, lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixyes
has_testsno
lockfilespnpm-lock.yaml
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifests—
dependency_bot_commit_share0

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
55/55Manageable file sizes — 0/8 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes13,299
source_files_sampled8
oversized_source_files0

Key facts

3,323GitHub stars
86contributors
41commits, last 12 months
11days since last push
47releases
1bus factor
3open issues
npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • OSV advisory lookup failed: [Errno 101] Network is unreachable

More detail

Star and fork history 0 ★ / 157 ⇿
0Stars
157Forks
47Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

025507510012515014932023-062025-022026-10
Major 0Minor 7Patch 40

Each point covers 4 days.

OpenSSF Scorecard 4.4 / 10
4.4aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-10-19 02:08 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
0CI-Tests2 out of 23 merged PRs checked by a CI test -- score normalized to 0
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
2Code-ReviewFound 6/24 approved changesets -- score normalized to 2
10Contributorsproject has 6 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained23 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
2Vulnerabilities8 existing vulnerabilities detected
Direct dependencies 4
RegistryPackageVersion constraintManifest
npmmarkdown-it-cjk-breaks^2.0.1package.json
npmmarkdown-it-footnote^4.0.0package.json
npmsitemap-ts^1.10.1package.json
npmvitepress-plugin-comment-with-giscus^1.1.15package.json
All dependencies 241

Full resolved dependency set from the GitHub dependency graph: 4 direct and 237 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

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Dependency advisories not assessed

Advisory matching could not run for this report: OSV advisory lookup failed: [Errno 101] Network is unreachable

Raw JSON report machine-readable

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