I am having issues compiling RecalBox on my Ubuntu machine. It gets to the same point, and crashes on file not found. Is the webserver down or something?

Location: https://codeload.github.com/libretro/swanstation/tar.gz/a39c7512c47c125f554c4e4725217c16628683e4/libretro-swanstation-a39c7512c47c125f554c4e4725217c16628683e4 [following]
--2022-02-13 23:21:05--  https://codeload.github.com/libretro/swanstation/tar.gz/a39c7512c47c125f554c4e4725217c16628683e4/libretro-swanstation-a39c7512c47c125f554c4e4725217c16628683e4
Resolving codeload.github.com (codeload.github.com)... 140.82.112.9
Connecting to codeload.github.com (codeload.github.com)|140.82.112.9|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2022-02-13 23:21:05 ERROR 404: Not Found.