Just as a reference, the application I'm building features a lot things inside the final binary, that might affect ram usage, so this is not a "hello-world" example but a real application, with a SPA built-into the binary and loaded into RAM, together with a HTTP API and more (fuller list here:
https://news.ycombinator.com/item?id=31765186).
With that said, `ps_mem` (https://github.com/pixelb/ps_mem) reports that the memory usage is 58.7 MiB after starting the Tauri application. If I run just the HTTP API, memory usage ends up being 19.4 MiB. So I guess in that sense, the overhead of Tauri is about ~39.3 MiB.
For my use case, that's pretty acceptable.
Edit: full data in case it interests people:
Desktop application:
Private + Shared = RAM used Program
47.0 MiB + 11.7 MiB = 58.7 MiB ditzes
Just the API:
Private + Shared = RAM used Program
19.0 MiB + 345.5 KiB = 19.4 MiB api