OpenAI codex is probably the closest to what you're talking about, its open source and you can use models from any provider. It's not as good as claude code right now but I bet it wont take long for them to catch up.
Isn't what makes something meaningful in the eyes of the beholder? It might not be sending rockets to mars or curing cancer, but if you perceive it as meaningful, then it is.
https://github.com/openai/codex/tree/main