Yes, I guess Electrum could be forked in order to support Nushares and Nubits.
BTW there are widespread support for Bitcoin and Litecoin already.
I enjoy Electrum because of its Simplified Payment Verification (SPV) approach. It’s so easy to use, create and manage your wallet and addresses, you just need to remember your passphrase (HD brainwallet?) or write it down (paper wallet?).
Sure it’s the best of both worlds…
There are SO MANY forks at Github, maybe someone’s already working in a Nubits version of it…