Fleshing beam mounts?

Hello. Need a few ideas on mounting my beam to wall. I have a 4x4 beam to mount to. Especially ways to adjust angles. Thanks

Barn door hinge

check out MTP's MB-36 fleshing beam mounting brackets. heavy hinge that mounts beam to the wall, and a telescoping leg that attaches to the underside of the beam. the leg telescopes to change the angle of the beam. might be what you need, or might give you some ideas for a build.

Hoosier outdoors trapping end of season 4 or beginning of season 5 talks about fleshing beams.