Veloren and Veloren Airshipper bot using rust-nightly. you can forget about packaging it
for official repos in Fedora.
Fractal - good luck to package it Fedora.
But both packaged for a long time and available in COPR:
- Fractal:
https://copr.fedorainfracloud.org/coprs/atim/fractal/
- Veloren:
https://copr.fedorainfracloud.org/coprs/atim/veloren/