@esoteric_programmer I actually explored the whole architecture today, the D-Bus interface, the reference
espeak provider, Flatpak packaging. it's really promising and exactly what would make TGSpeechBox a one-click install for Orca users.
right now the Linux renderer is phonemizer-agnostic (IPA in, PCM out), so you can hook up any phonemizer you want.
that's a strength but it means more setup for users, especially if your distro doesn't ship espeak-ng.
a Spiel provider would bundle espeak statically into one binary, text in, audio out. you lose a bit of mix-and-match
flexibility but gain "install and it works." it's on the roadmap for v3.0 but needs all the Linux plumbing built from
scratch (D-Bus, Flatpak manifest, CI). definitely happening though!
linux tarballs on the releases page work today if you're comfortable with manual setup. They also include an install.sh that tries to copy things in for you, one easier task is making that script a bit more Espeak aware so if it's not on a distro it prompts to install it.