Harbour builder builds all Harbour flavours automatically using GitHub Actions
If you want to download all of them in one single zip file to unzip at c:\harbour please download this:
https://www.fivetechsoft.com/files/harbour/harbour_all.zip
For Linux please review this action file:
https://github.com/FiveTechSoft/Harbour_builder/blob/master/.github/workflows/harbour_ubuntu_64.yml