In the "kind of does what you need" case, I'd write my own but maybe borrow ideas from the original. The moment you fork something, you've created work for you

In the "kind of does what you need" case, I'd write my own but maybe borrow ideas from the original. The moment you fork something, you've created work for yourself when you want to upgrade it. That may be fine for a prototype. But I've seen it done on software that lasts 5-10 years and those are always the things that turn into maintenance headaches and blockers to unrelated upgrades.