How to create custom extension from .vsix url? about nix-vscode-extensions HOT 1 CLOSED

cucumber-extension = packages.vscode-utils.buildVscodeMarketplaceExtension rec {
  mktplcRef = {
    name = "xeger";
    version = "1.7.1";
    publisher = "no-publisher";
  };
  vsix = builtins.fetchurl {
    name = "${mktplcRef.publisher}-${mktplcRef.name}.zip";
    url = "https://github.com/xeger/cucumber-vscode/releases/download/v1.7.1/cucumber-official-1.7.1.vsix"; # Replace with your source URL
    sha256 = "1h1gskszhw1mk9kmj0qbd8g344bvhj6bn4shil0vcayb37fbjdcd";
  };
};