Comment by DomesticMouse

> On total whimsy, I tried Flutter. I downloaded it, and built "Hello World" for macOS. Not only did it take an eternity to compile (on my modern, SSD enabled, eleventy gigablip iMac), the result was 108MB. And that was just for the Mac version, I'd need 2 others for Linux and Windows. The compile time was glacial (I know, its got hot reloading to speed things up).

I'm curious how you got 108mb. Here's what I'm seeing:

  $ flutter --version
  Flutter 3.0.4 • channel stable • 
  https://github.com/flutter/flutter
  Framework • revision 85684f9300 (7 days ago) • 2022-06-30 13:22:47 -0700
  Engine • revision 6ba2af10bb
  Tools • Dart 2.17.5 • DevTools 2.12.2
  $ flutter create hello_world && cd hello_world
  Creating project hello_world...
  Running "flutter pub get" in hello_world...                      1,764ms
  Wrote 127 files.

  All done!
  In order to run your application, type:

    $ cd hello_world
    $ flutter run

  Your application code is in hello_world/lib/main.dart.

  $ flutter build macos

  Building with sound null safety

  Building macOS application...

  $ du -ah build/macos/Build/Products/Release/hello_world.app | tail -1
   44M build/macos/Build/Products/Release/hello_world.app

Note, the release build is significantly smaller than the debug build, which includes a full Dart VM for hot swapping application code:

  $ flutter build macos --debug

  Building with sound null safety

  Building macOS application...

  $ du -ah build/macos/Build/Products/Debug/hello_world.app | tail -1
   98M build/macos/Build/Products/Debug/hello_world.app

Note, on the glacial compiles, here is what I'm seeing on my M1 mac laptop:

  $ time flutter build macos

  Building with sound null safety

  Building macOS application...
  flutter build macos  1.20s user 0.59s system 47% cpu 3.801 total

It's slower than building web pages in vim, but this is comparable with compiling desktop applications in Xcode.

Disclosure: I'm a Developer Relations Engineer for Flutter