I want to keep track of script errors, for example. I'm sure there is a site or something with an API I can use to keep track via HttpService.
CloneTrooper1019 did it, I have no idea how though. Pastebin is the only site I know of, but there is no option to edit a paste in the API.
Using trello, this article is the best for you https://scriptinghelpers.org/blog/logging-errors-with-trello