can any solo indie devs out there who work on tile-based retro systems (gameboy, nes, etc) describe their workflow for me? right now i'm editing art in aseprite, exporting as png, converting to gameboy-format 2bpp to include in the ROM, and hard-coding tile indexes in my program (e.g., here's the list of tile indexes to draw the donut sprite, here's the list of tile indexes to draw the little house...). it's tedious and fragile and there has to be a better way?