a thing i threw together after many generations of making these stupid controllers
full stoichiometric control (can by dynamically chosen based on throttle, or static), has optional direct or PID throttle control and uses nothing but maths to find the AFRs and stoichiometric values needed
p.s
it *should* be compatible with supercharging given its virtually instantaneous nature to change air-fuel ratios but it remains to be tested from me, let me know in the comments if it does/doesn't
i also may make another version of this but completely barebones with only composite in and fuel out for those compact enjoyers (if this gets enough likes then it will be guaranteed, i'll set a goal of 10)