mudamuda
I doubt that current systems can replace cash at scale but for niche usage Monero and Litecoin. Also Grin but it is dead.
It is a hard pill to take.
Bitcoin maxies hate everything. Especially the most prominent competitors. They only embrace enemies of their enemies sometimes promoting even pure scams.
People sometimes need no a reason but a pretext to create a coin fork. After the BTC/BCH split the general concept of chain hard forking was discovered and many pointless forks was created.
NixOS learning curve maybe is not so hard. You can start with default configurations and installed Calamares what is as simple as on other distros. Than look for options and try.
Otherwise, Flatpaks are reproducible (build with flatpak-builder as on Flathub).
I’m sick of all the attempts to whitewash the recent Red Hat move. This makes things only worse. Fedora will not be affected, Alma has a bright future, CentOS is open to all, “rebuilders”, clones…