Variable Font not working with CSS

Hey, I have made a little variable sketch font and would like to use it on a webpage with animations. I am only using the width axe and it is working in Adobe apps, and also sites like Dinamo Darkroom or Axis-Praxis. But I am unable to get it work with HTML/CSS on my own.

This is my code:

@font-face {
      font-family: 'Stärke';
      src: url('/assets/fonts/StarkeVariable.ttf');
      font-weight: 100 900;
    }

}
p {
      font-family: 'Stärke';
      font-variation-settings: "wght" 100;
      font-weight: 100;
 }

Other variable fonts are working for me this way, but my own isn’t. It’s just showing my font in 500 weight. Is there anything I could have done wrong for web? I tried Chrome and Safari.

Thanks in advance!