first of all i am very glad about the linux version and the ongoing development. In the other post about the critical thoughts you talked about the implementation of additional functions. So i wont talk too much about this.
It would be very nice if you would implement the option to define a "datapath" so you can put the executable file to "/bin" "/usr/bin" or "/usr/sbin" and the data to "~/.config/ftprush" (like in other linux programs).
And like others wrote it would be very useful if you implement things like fxp, socks5 proxy, custom list commands, xdupe, shortcuts for ftpcommands, skiplist and so on.