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To make an open-source project easier to trust, make its work and maintenance verifiable: identify the canonical source, explain how to contribute and report problems, document tests and dependencies, and publish understandable releases users can verify. These habits reduce guesswork; they do not prove software is safe or free of vulnerabilities.
Make the source repository and its history easy to inspect
Give the project one clearly identified, publicly readable canonical repository at a stable location. If you use mirrors or separate repositories, explain which one is authoritative. Preserve a public change history so visitors can see what changed, who made the changes, and when. These basics help a prospective contributor or adopter orient themselves before assessing the code. The Open Source Project Security (OSPS) Baseline organizes security practices by project maturity: OSPS Baseline.
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Show people how to contribute and report problems
Put contribution guidance somewhere easy to find. Explain how to propose a change, what review to expect, and any project conventions contributors should follow. Provide a clear route for ordinary defect reports, and publish a security policy that gives people a way to report vulnerabilities privately.
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#1 Best Overall
Make testing and dependencies visible
Use an automated test suite where practical, and document how and when it runs. Add or update tests when making major functional changes. A contributor should be able to find the relevant command or workflow and understand what passing tests do—and do not—cover.
Document the project’s dependencies where the package ecosystem supports it. Explain how dependencies are selected, obtained, and tracked, and use standard package-management tooling when available. For compiled releases, the OSPS Baseline includes a software bill of materials (SBOM) control at a higher maturity level; it is not a universal first step for every small project.
Rank #2
Make changes and releases understandable
Use review practices suited to the project and its hosting platform. Give each release a unique identifier and publish human-readable notes describing functional and security changes. Clear notes let users decide whether an update affects them and make maintenance activity easier to follow.
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A public source repository does not, by itself, show that a downloaded binary was built from that source. For release integrity, sign the released assets or provide a signed manifest containing a cryptographic hash for each asset. Explain how users can check both the release identity and the integrity of the files they received.
Keep basic governance and account safeguards visible
Put the project’s license in a conventional, discoverable location in the repository. Where the platform supports them, use branch protection and multi-factor authentication to reduce the likelihood of unauthorized changes. These are practical safeguards, not guarantees against compromise.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Choose practices that fit the project’s maturity and risk
There is no need to treat every advanced control as an entry requirement. Prioritize according to the project’s maturity and exposure, the harm a failure could cause, how readily outsiders can verify a practice, and the ongoing effort it requires.
- Approachable foundations: a visible canonical repository, a discoverable license, contribution and problem-reporting instructions, and a basic automated test suite.
- Practices to add as the project grows: signed releases, SBOM generation, and more extensive security assessment, where the project’s risks, tooling, and capacity justify them.
The OSPS Baseline is a maturity-tiered checklist, not a project leaderboard. Its FAQ says it is not a substitute for audits or certification and is not intended to grade or rank projects: OSPS Baseline FAQ. Visible activity alone is not proof of quality; look for specific practices and consider what each one lets you verify.
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