What are some things I should consider when moving in with my boyfriend?

My boyfriend and I are moving in together for the first time, and I’m wondering what legal and financial considerations I should keep in mind. I love him, but our approaches to money are very different. I’m generally a saver and prioritize spending on essentials, while he saves very little and spends a significant amount on his hobbies. He also carries credit card debt and only makes the minimum monthly payments. Are there any legal or financial precautions I should take before we move in together.