Let people scan their LNbits wallet QR, which is an URL containing their keys. Use those keys with their standard APIs to allow in-app payments. LNbits also has support for lndhub, so you can use those APIs to connect to the wallet/account as well. One benefit of that is can work as a wrapper over your own non custodial LND, c-lightning etc node or over custodial solutions like lntxbot
Discussion
I know that LNbits will run on a c-lightning node, and that LNbits has support for lndhub. Despite lnd in the name, do you know if the lndhub plug-in still works (works as in can be connected to remotely) on lnbits if it is funded by a c-lightning node and not a LND node?
Might be worth integrating...
This could be a game changer! In App Wallet custodial, non custodial, whatever you want as so many services already rely on LNbits
This!