Sheena-Tiger

I don't know how exactly Tynan was going about such things with modders for Rimworld, but since the Kickstarter several ideas which had been mods had been integrated into the game itself. The clear upside was, that the mods had not to be loaded as mods anymore but could be coded as integral part of the game, making them more stable and everything. Maybe here is such an option as well. You already put lots of work into it and Tyron want to implement fishing just seemingly isn't sure yet how or something (I did not read the whole forum posts about it and memories can be a bit unreliable). So why not get in touch with him? Getting your stuff into the game is likely less time consuming than tackling the whole stuff from the start just to get a feature working which is already working. Refining, balancing... that stuff will come with time and can be done on his end while you work on something else as you might be planning anyway.