thanks to borti4938, N64 RGB is reaching a new level.

https://github.com/borti4938/n64rgb/blob/master/Guide_N64A_n_N64RGB.pdf

Including deblur, wonderfull RGB Picture, OSD for configuring and more…
I used the new FPC Adapter (thanks to borti)

If you want a mod:
https://www.wolfsoft.de/shop/product_info.php/products_id/15375/

Here you can find some installation pics for a N64 jap  NUS-CPU-03 Board

Cutted Pin 3 and used C-Sync from RGB Advanced Borad

(some testing)