Lightning support in altcoins

[juhakall]

Everybody knows that Litecoin was a pioneer in SegWit and Lightning technology. Now there are at least lnd and c-lightning, worthwhile projects both. But does anyone know how compatible these are with altcoins? For Litecoin there obviously is an implementation, what are they using? But the coin I'm thinking about mainly is Bitcore. It is claimed to be SegWit-ready and is based on Bitcoin 0.15 currently. What does it actually take from an altcoin to be LN-compatible?