Marty's Ƀent Issue #1214: Silent payments This would provide increased utility for those looking to receive bitcoin payments with better privacy assurances and less interactivity with the chain.
Marty's Ƀent Issue #853: A statechain implementation in the wild This is a beautiful thing to see at this stage of Bitcoin's maturation.
Marty's Ƀent Issue #497: Scaling with Utreexo and Statechains It's small, incremental, boring changes like Utreexo and Statechains that get ya boi all hot an bothered when observing Bitcoin's proliferation throughout our world and beyond.