So as mentioned in a few threads, V5 is a distinct mechanical departure in many aspects. Also being a new edition it doesn’t have the back-catalogue of supplements that many players of older editions are used to.
As such, it’s no surprise that there’s plentiful demand for homebrew on the part of players and storytellers in order to provide all the options they’re interested in.
So my question is, what general guidelines and advice would you normally follow for homebrewing something for V5? How would you adapt something from V20? How would you go about creating something entirely new? Would you let your players try and homebrew things, or is it solely the purview of the ST?