@ruby0x1 if:

1- the engine does its thing in a way i find interesting or unique

2- i can see myself --and have the go-ahead for-- using it for my own things

3- there's good organization on tasks needed and vision for the way ahead

*definitely* would work on --not create-- a game engine. (edit: i love the finer details of working with code, helping others, but i'm a bit scatter brained in bigger planning 🤷)

--caveat: having the time to actually do so. point 2 helps with that prospect.