Project information: GitHub - ghostty-org/ghostty: 👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.
A terminal emulator written in Zig. Supports Kitty graphics protocol. Uses opengl ,a GTK 4.16, interface libawaita-1. Needs org.freedesktop.portal.Settings.
Name: ghostty
Homepage: https://ghostty.org/
License: MIT License
Upstream has been contacted:
Discussions are on-going on GitHub. There are some technical difficulties preventing this flatpak from being made.
Yes unfortunetely, ghostty is for me best terminal now. I use it on all linux distro with zsh and tmux, but i use on some device also Rocky linux, thats why i want install all in flatpack becouse not need manual update like after compile from souce. And Rocky is 1:1 Red Hat clone, thats i setup it as recomendation say… Flatpak is safe for stability, becouse not integrate with linux distro. App image ghosty also egsist, but i want wait for official Fedora rpm, soon i hope. Off course on Rocky linux i have 10 years gap form one system update to another. I still prefer stick to stability then new version apps. 
Maybe some day will be added, now i just install kitty and i rly hate this terminal… 