For this approach, I will look into a simple solution: Zeus + any good public mint, then swap (Zeus have integrated swaps too) into a "savings" onchain wallet and later opening a true LN channel and do more.

Or using Rizful node + Zeus: #904362

I found Zeus app very powerful with many options to be used: own remote node, embedded node, NWC connections, lndhub connections, cashu mints and even all together. You cannot ask for more from a Bitcoin app.