https://cutawayshot-games.itch.io/neskit

NESkit is a development kit for Nintendo Entertainment System, it features everything you need to develop homebrew game for NES, it includes a easy to use API similar to pico8 and raylib that makes development for NES easier than ever, it includes asset convertors to convert modern formats into formats that can be used in nes, and it got a map editor to create your game levels easily

right now you can buy this awesome dev kit for a minimum of 1 euro, of course more is appreciated