  Bulk NdNiO_3 and thin films grown along the pseudocubic (001)_pc axis display
a 1st order metal to insulator transition (MIT) together with a N\'eel
transition at T=200K. Here, we show that for NdNiO3 films deposited on (111)_pc
NdGaO_3 the MIT occurs at T=335K and the N\'eel transition at T=230 K. By
comparing transport and magnetic properties of layers grown on substrates with
different symmetries and lattice parameters, we demonstrate a particularly
large tuning when the epitaxy is realized on (111)_pc surfaces. We attribute
this effect to the specific lattice matching conditions imposed along this
direction when using orthorhombic substrates.
