After seeing a post on Reddit, tried out a Friûl Libar. Amaro Nonino base, gin (called for navy strength but I didn't have), demerara syrup, lemon, Peychaud's.
This was an interesting drink: each sip started very bright with sweet and sour citrus, but in the finish there was a palpable turn towards dark and bitter flavors. This bright-and-dark I experienced as an intriguing dynamic, not a irreconcilable clash.
Reminiscent of a Last Word in some ways.