2.Codier This is also same a before but little different like you can view the other developers solution and task are very little and large also. Https://codier.io/. - Source: dev.to / over 1 year ago

Codier is the free platform where each project you choose has instructions that you must follow and once you completed the project, you can submit your solution and others could rate it. Codier. - Source: dev.to / almost 2 years ago

If you don't want to trust a link from a stranger then you could use https://kinolien.github.io/gitzip/ where you can put the URL of a github folder and it'll give you a zip of the contents, so if you want the belle dark sub mod then you would paste in: https://github.com/Historical-Expansion-Mod/Greater-Flavor-Mod/blob/master/GFM%20Belle%20Dark.mod. Source: almost 2 years ago

Yeah, on GitHub there's no download directory button or something like this. You could for example use GitZip to download it zipped, just paste URL to that directory in there and download. Source: about 3 years ago