I built a fightstick the other week! Mostly for Street Fighter 6, though I have played some other 2D games including Hades and River City Girls with it as well.
Parts:
-Brook UFB Fusion board for compatibility with PS4/5, XBOX 360 and above, Switch, Wii U, PC and more
-Crown 309 Helpme K ST35 lever
-Qanba Gravity KS buttons for the top and Seimitsu standard for the sides
-Custom enclosure kit from Eternal Rival
My build was around one of those custom boards, so no soldering for me. It’s perfect for me since I play on PC only and the web configurator is really nice to have for easy SOCD cleaning functionality swaps for different games. I’ll need a Brook adapter if I ever find and go to locals, but I don’t expect that to happen anytime soon.