use str
var archbase = 'https://gitlab.archlinux.org/archlinux/packaging/packages/{repo}/-/raw/main/{file}'
var aurbase  = 'https://aur.archlinux.org/cgit/aur.git/plain/{file}?h={repo}'

fn -dl {|baseUrl repo @files|
  if (== (count $files) 0) {
    set @files = PKGBUILD
  }

  echo $files

  each {|file|
    var url = (str:replace '{file}' $file (str:replace '{repo}' $repo $baseUrl))
    printf "wget2 -O %s %s\n" $file $url
    e:wget2 -O $file $url
  } $files
}

edit:add-var arch-dl~ {|repo @files|
  -dl $archbase $repo $@files
}

edit:add-var aur-dl~ {|repo @files|
  -dl $aurbase $repo $@files
}