backports packages in Tumbleweed

I wonder how to get backports packages installed in Tumbleweed. I was looking to install libretro cores in Tumbleweed. Under 15.3 the cores are available in the SLE-backports repository. However, there does not seem to be a backports repo for Tumbleweed. Am I missing something?

Thank you very much in advance.

Looks like it’s a Legacy package, as in no development repository anymore, therefore not in openSUSE Tumbleweed. I think you need retroarch in Tumbleweed?

Backports exist for regular SUSE distributions because the content of these distributions is frozen, so backports repository was created to offer some possibility to install newer versions than were released in these distributions. It is called “back” and “port” because often newer versions need to be modified (ported) to compile and run in older (backward) environment.

Backports do not exist for Tumbleweed because Tumbleweed by definition contains the latest available versions of each software. There is no “back” to port software to.

Unfortunately “the latest available” also covers the case when software is no more available for whatever reason. Which is exactly the case here.