Own the important layer
Platforms are useful distribution and execution layers, but the canonical identity, source files, records, and operating logic should remain under durable control whenever practical.
Document the decisions
A system is easier to migrate when its rules, architecture, status, and assumptions are documented. The goal is continuity even when software, vendors, or interfaces change.
Preserve provenance
For creative and technical work, provenance protects meaning. The original asset, its history, and its relationship to later manifestations should stay clear as the ecosystem expands.