# source-mirrors > Single-writer source mirrors: one mainline, hosts as read-replicas, manifest-driven fast-forward-only fan-out that fails loud A community documentation of nothing it declares, published by org.vibevm.world, in en. Read it at /doc/org.vibevm.world/source-mirrors/1.0.0/. Rendered 2026-09-12. Single-writer source mirrors: one mainline, hosts as read-replicas, manifest-driven fast-forward-only fan-out that fails loud ## For agents - [Boot snippet](/doc/org.vibevm.world/source-mirrors/1.0.0/boot-snippet/): `org.vibevm.world/source-mirrors@1.0.0` contributes a boot snippet: text that a session reads before it starts work, placed into the project's generated boot lane by `vibe install`. It is not read on this page — it is read by the agent. (1 min · user, agent) ## Pages - [Package manifest](/doc/org.vibevm.world/source-mirrors/1.0.0/manifest/): What `org.vibevm.world/source-mirrors@1.0.0` declares about itself. Everything on this page is the package's own manifest, read and shown — nothing here is an opinion about the package. (1 min · user, dev)