Hey Voduyan. It is possible to mod the game, we're working on a Rebalance mod in the Discord server. Trying to reduce artificial difficulty and RNG in the game. You can edit the json files and change most of the game. If you're interested in the mod, you should check out the official F&H Discord. Not sure how to set up mods on itch.io.
If you have any questions about modding yourself, let me know.