There are some `rules` to follow for business travel.
At least 50% of your time away, not counting travel days, should be for business. If so, 100% of the airfare is deductible. Same with the hotel, you could arrive the day before and stay the night after and expense that as well, along with meals.
The `tools` you mentioned should be fully expensed if used for the business.
What may be worthwhile is to start an LLC (and open a separate bank account). If it is just you in the business, an LLC is something you can do on your own with your state. Save the legal fees until you grow and bring in partners, then having the lawyers involved to create an operating agreement is critical.
If you don`t want to go the LLC route, at least get a DBA and a separate bank account. Without showing a separation between you and the business, your losses could be limited as `hobby expenses`.