[DiapDealer]

Adding the Qt libs directory to the ld_library_path is really only strictly necessary if you custom build Sigil against a version of Qt different than the system's default Qt. The repo version of Sigil is always built against the current system Qt (and should always be able to find it). It doesn't hurt to include the system Qt libs directory though. That's why I include it in the vanilla launcher--it will work for all situations: vanilla or custom.

I'd just like to see Reuben return to a completely stock distro Sigil installation so we can properly debug what might have been happening.