If this sounds like your week
“Fast enough” in a browser is not fast enough in production.
A native Rust engine is not a flourish; it is what keeps a large batch job from turning into an overnight wait while files sit in an upload queue. CAD and diagram exports nest ancillary chunks carrying authoring tool paths rivals should not scrape.
Where tooling usually breaks
Electron wrappers around a CLI still move your data through a maze.
Native does not have to mean fragile command-line glue, and local does not have to mean slow. Most “free” tools trade your throughput, your privacy, or both.