Counter-example: Xmonad. Here's how I "configure" it:
Open ~/.xmonad/xmonad.hs. It's Haskell code, but frankly it reads like a configuration file, with a big list of shortcuts.
Edit the "code". You don't need to know Haskell, just follow the syntactic conventions you see there. Worst case, you have to search for configuration tips on the web.
Save xmonad.hs, hit the "recompile Xmonad" shortcut. You've now recompiled and restarted Xmonad, and all your windows are still where they were before. Application state survives recompilation.
Open ~/.xmonad/xmonad.hs. It's Haskell code, but frankly it reads like a configuration file, with a big list of shortcuts.
Edit the "code". You don't need to know Haskell, just follow the syntactic conventions you see there. Worst case, you have to search for configuration tips on the web.
Save xmonad.hs, hit the "recompile Xmonad" shortcut. You've now recompiled and restarted Xmonad, and all your windows are still where they were before. Application state survives recompilation.