BSNES on Fedora 31
Download BSNES binary here: https://byuu.org/bsnes
Run BSNES from a terminal and see if it complains about missing files. You can install some of them using:
sudo dnf install gtksourceview2-devel perl-Net-DBus perl-X11-Protocol
To find others, if any, use:
dnf provides <missing file name>
Add Launcher Entry
Use AppEditor to conveniently add a GNOME Launcher entry: https://flathub.org/apps/details/com.github.donadigo.appeditor
The BSNES logo can be downloaded from the project's website.
The official lettercasing of the project is "bsnes" so use that as the launcher's name.