Comment # 1 on bug 1192186 from Andreas Stieger

Build dependency problem:
>  unresolvable: nothing provides meson >= 0.58.0, (got version 0.54.2-3.3.1) 

Reporter, you are using an "experimental" repository multimedia:libs. It may
and will break at any point in time for any reason, and carries this warning
for this very purpose.

This is not a bug in the Leap 15.3 distribution or Tumbleweed. If the
maintainers are so inclined they could aggregate meson to make it build on Leap
15.3. Otherwise your way forward is to use the packages provides in the
distribution or move to Tumbleweed.