Newbie Question home manager first configuration

Hello,

i started to use nix and tought it is a good idea to start with

readme looked easy enough so i did that

but i get now the error

error: flake 'git+file:///home/webpirat/Dokumente/nix-config' does not provide attribute 'packages.x86_64-linux.homeConfigurations."webpirat@workstation".config.news.json.output', 'legacyPackages.x86_64-linux.homeConfigurations."webpirat@workstation".config.news.json.output' or 'homeConfigurations."webpirat@workstation".config.news.json.output'

when i do “nix flake show”

git+file:///home/webpirat/Dokumente/nix-config?ref=refs%2fheads%2fmain&rev=77e47cdc5368091cfb51f6fbafd86f0f6ad3603e
├───homeConfigurations: unknown
└───nixosConfigurations
    └───workstation: NixOS configuration

So it looks to me as i got a typo somewhere ? Could someone pls look at it and tell me i cant seem to find whats wrong honestly i cant figure out how it should look like cause i found 3x differnt styles of that config now

thank u and best regards