I was unable to install the desktop for my NixOS because there was a mismatch in the SHA:

error: hash mismatch in fixed-output derivation '/nix/store/y4y0fjrmlwx8q8x8yr93ds0pjb1nrlpx-radicle-desktop-npm-deps-0.0.0.drv':
         specified: sha256-jCz7gyjTXo9QOR8KGMGCnKjoODwHCFEmMtndrLeta0M=
            got:    sha256-I5kIZ5o700M02PEiLiEa8uwtPQNqpkQp3JFZ2rTmPqg=

I ran the update flake scripts to hopefully fix this.