After upgrading my Invisible Arch box to use the new Deepin Desktop V20 beta I ran into a hiccup trying to start Ungoogled Chromium:
% chromium /usr/lib/chromium/chromium: error while loading shared libraries: libre2.so.6: cannot open shared object file: No such file or directory.
What the shit is libre2.so.6? Initial web searches were fruitless so I fell back to GNU IceCat for a minute while I explored Deepin 20’s buttery new interface. Later I found a debugging trick on bugs.archlinux.org to find the problem: