I actually played with a player who has done so, which is why I mention it from time-to-time.
They were actually a valor bard but wanted the flavor to not be magic. The things that were changed was basically that his focus was instead a "component pouch" which had a couple of practical stuff in it. For instance, "healing word" was "Quick-acting blood clogger (or something idk exactly)" and they would splash the solution on the wound up to 60ft.
It was odd and the fact healing word doesn't naturally have a spell component makes it a little dissonant, but I don't think it really bothered him. Perhaps he was proud of his work anyways, despite the minor inconsistencies.