Spend or swap back on-chain. But honestly, LN is for spending.
Discussion
small amounts, I agree.
it ends up not being worth it if you self custody for a chump change hot wallet ie: LN.
Last thing I want is to get stuck for a failed transaction at a street food vendor in El Salvador or Mexico which is were im going in 2 weeks. I use Phonix and Zeus, but will not be going on vacation without a Wallet of Satoshi instance on my device thats for sure!