OpenToonz alternatives: preserve the scene, not only rendered frames

For OpenToonz alternatives, migrate a short scene with drawings, levels, camera moves, effects, and audio.

• Verify frame timing, layers, palettes, and compositing after import.
• Edit a few drawings and reopen the project on another workstation.
• Render to the production format and compare color and audio sync.
• Check exposure-sheet or timeline workflow, backup, and plugin needs.
• Preserve original scene files and assets until the editability test passes.

A matching final video cannot show whether the team can revise the scene later. Evaluate both render and source project.