Uses M3 screws, washers, & nuts.
gyroid infill, 15%
0.2 layer height
outer brim (no support needed)
print 2 of the leg stl file
print 1 each of sliding shelves (A and B)
print whatever leaf you plan to use.
Final shelf table size:

no leaf: 9.5 x 8.5 x 8 (wxdxh) inches
leaf1: 11 x 8.5 x 8
leaf2: 12.5 x 8.5 x 8
leaf3: 14 x 8.5 x 8
leaf4: 15.5 x 8.5 x 8