Plain Waypoint

Plain Waypoint is a lightweight, client-side waypoint mod for NeoForge 1.21.1. Press B, name the spot, pick a color, done. No minimap, no auto-discovery, no wall of settings.
Waypoints show up as a colored beam and ground marker with a name and distance label, plus an off-screen arrow pointing toward them. They save automatically per world. You can use the default letter icon or import your own custom PNGs, no bundled icon catalog, so the mod stays small.