Memoize mapping hash in the header
Memoize mapping hash in the header

pxlpnk/rom,rom-rb/rom,pdswan/rom,vrish88/rom,rom-rb/rom,dcarral/rom,kwando/rom,rom-rb/rom,denyago/rom,cored/rom,endash/rom,jeremyf/rom,Snuff/rom,pvcarrera/rom,dekz/rom