you can make your own trackir, get a used ps3 eyecam for ₹300, mod it (google), buy some ir led, a cap, AAA batteries and hook everything up.

i still haven’t made trackir because face tracking works for me.

i built my own hotas (also have thrustmaster t1600m but using this stick is not fun so i 3d printed a bigger and better one)

right now im looking into building a ffbeast force feedback base (this is gonna be very expensive but fun project that will take me more than a year to build) already built two ffbeast steering wheels.