The third volume of « Three body problem » and its fan-written and author-approved sequel deal with those local physical constants changes !
reply"A Fire Upon the Deep" and "a Deepness in the Sky" by Vernor Vinge
replyDeepness in the Sky "programmer-archaeologist" will never come to pass because of LLMs :(
replyThe Forever War series changes the speed of light at the end to mess with the mortals, not to prevent any calamity however.