Mandating public manifests for all snaps, not just prebuilt packages

I believe the Snap ecosystem would benefit greatly if it were mandatory for developers to upload build manifests alongside their snaps — not just the prebuilt package.

Reasons & suggestions:

  1. Transparency & verification – Manifests must be open source, so the community can scrutinize the build process. A QA process should ensure the published snap matches exactly what was built from the manifest. This could help prevent issues like this malicious cursor snap case.
  2. Better enforcement of best practices – Reviewing only the prebuilt snap allows bad build practices to slip through. The store should enforce ecosystem-wide requirements like updated bases, extensions, and secure variables — similar to how Google Play and the Apple App Store enforce technical standards.
  3. Reduce unnecessary fragmentation – For example, if someone wants to ship ffmpeg, there shouldn’t be countless approaches. Limit to two:
  • Build from source within the snap environment (no prebuilt binaries).
  • Use a maintained runtime like ffmpeg-2404.
  • Pulling from Ubuntu repositories isn’t ideal, as those builds aren’t optimised for snaps.
  1. Community review & actionable feedback – All manifests should be open for community scrutiny. Suggestions from reviewers or the community should require a response — either acceptance or rejection — not be left stale. Canonical store admins should have the authority to back good suggestions and encourage upstream adoption.
  2. Public domain access – All snap manifests should be openly accessible in the public domain, ensuring long-term transparency and trust.
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