Does anybody anchor on a tree and solo climb and using a self

The Right Way To Build A Rock-Climbing Anchor - Climbing

Cordelette on a tree: caution on the shelf — Alpinesavvy

Retreat anchors - alpine climbing — Alpine Savvy

Advanced Techniques: Simul-Climbing and Short-Fixing

Abseil Anchors — Straight Up Adventures

Tree Climbing: Anchoring in the Tree

Oscars: Free Solo documentary and how Alex Honnold climbed without ropes

The Oral History of Rock Climbing in Joshua Tree National Park - Joshua Tree National Park (U.S. National Park Service)

Rope Soloing