Good news: Bernhard, the Slowroll maintainer, triggered a complete rebuild of Slowroll to fix that problem with ffmpeg-8-mini-libs on PackMan:
https://bugzilla.opensuse.org/show_bug.cgi?id=1262799
nothing provides ‘this-is-only-for-build-envs’ needed by the to be installed ffmpeg-8-mini-libs-8.1-1.2.x86_64
Just now Myrlyn found 2500+ updates for my Slowroll, and there are no more dependency problems.
But one of those updates killed the X server after updating some 2000 packages, and that made Myrlyn hang in an endless loop because the X connection was gone; it spammed its log with thousands of messages like
2026-05-08 10:11:20.744 [530515] [Qt] The X11 connection broke (error 1). Did the X11 server die?
If you have that same problem, kill Myrlyn (the PID is this [530515] from the log) and restart it to resume the update. I’ll fix Myrlyn to at least do a clean exit and avoid being stuck in the Qt event loop with repeating that message over and over.
I couldn’t try it, but it’s probably the same on Wayland.
Sorry for the inconvenience.