I saw chiz_m's EZ A1 PTFE tool and thought - wait, wouldn't this work if you turned the clamp 90 degrees and printed it on its side to avoid needing support material? Apparently it does! My included profile is a custom speed print profile for the A1M, but the overhang still succeeds with all defaults on nozzle and filament settings so it should be safe for Bambu Handy.
CAUTION: If you want to increase part strength, do NOT touch wall loops. Thanks to weird slicer jank, increasing wall loops or line width will cause the slicer to print the bridge over…thin air. Crank infill % if you want more strength, though I'm happy with the strength of this profile.