It didn't work, and I don't know if it's because something was wrong with my "$@" script, because something is wrong with meld, because something is wrong with flatpak, because something is wrong with the configured permissions for flatpak permissions, because something is wrong with Mercurial (which invoked meld), or because something is wrong with my Mercurial configuration. I was a fool to believe I could use a GUI program on Linux.

"There was a problem opening the file "/home/mcc/emj". No such file or directory."
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